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>> [Daqq ta mużika]

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00:00:03,968 --> 00:00:10,744

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>> STEPHEN turban: Hekk jien Stephen Turban.

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Fuq fuq in-naħa hawnhekk, forsi aħna
tista 'tikseb xi nies biex adsa fis.

5
00:00:16,990 --> 00:00:20,150

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Għandna Gabriel u Zack.

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Allura għal pjan direzzjonali fil-qosor dwar liema
dan se look like,

8
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Jien ser tkun qiegħda tagħmel xi estremament
Ħarsa ta 'livell għoli lejn dak MVC hu.

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Gabe?

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>> GABRIEL Guimarães: jien ser
jitkellmu dwar Ruby u ftit

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kif Binarji xogħlijiet u kif din tista '
jgħinuk jibnu l-applikazzjonijiet web.

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>> Zack CHAUVIN: U jien ser
nuruk eżempju speċifiku ta 'kif

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biex jużaw binarji biex jibnu
app super-biża.

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STEPHEN turban: biża.

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Sweet.

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Kull dritt.

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00:00:46,850 --> 00:00:49,510
Mela ejja nitkellmu dwar MVC.

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Mela ejja jmorru għall-slide li jmiss, li
Se nagħmel billi tagħfas din il-buttuna.

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00:00:54,970 --> 00:01:12,640
U ejja mur l-iżvilupp next--,
I simili biex jaħsbu dwar jmorru lil CVS,

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minħabba CVS hija maħżen u
għandha wkoll V fiċ-ċentru.

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>> U hekk ejja jimmaġina lil maħżen.

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U ejja jagħmlu dan il-maħżen
jbiegħu biss ħaġa waħda.

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Allura aħna qed tmur biex ikollhom dan
jaħżnu biss jbiegħu dawn tazzi aħmar.

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U jimmaġina inti timxi fi, u inti tmur
għall-quddiem tal-maħżen, u persuna.

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U l-isem tiegħu huwa Vince.

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>> U Vince mewġ bonjour fi inti, jgħid hi.

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U tinnota ħaġa waħda dwar Vince.

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Allura kull meta naħsbu dwar Vince, aħna
għandek biex jaħsbu dwar żewġ aġġettivi ewlenin.

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Vince hija sabiħa, iżda huwa stupid.

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OK.

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Allura inti taf, ebda tort tiegħu stess,
sfortunatament, hu sabiħ.

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Huwa fehma tagħna.

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Allura l-ewwel membru mitfugħa tagħna huwa hemmhekk.

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Iżommu dan f'moħħhom.

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>> Issa, inti ssaqsi Vince, inti tmur, ħej Vince.

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Jien klijent.

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Hu jgħid hi.

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I really jixtiequ wieħed mill cups aħmar tiegħek.

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U dak ma Vince jgħidu?

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Ħadd ma jkollu xi
idea dak Vince jgħid?

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00:02:26,510 --> 00:02:30,340

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Jien ser sejħa kiesaħ.

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What do you think Vince jgħid?

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>> UDJENZA: He says, I inti tista 'turi
fejn hi, imma ma nistax jtik wieħed.

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>> Turban STEPHEN: He says, I inti tista 'turi
fejn hi, imma ma nistax jtik wieħed.

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Saħansitra agħar.

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Ħaddieħor jkollhom ieħor
idea dak li jista 'jgħid Vince?

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>> UDJENZA: He irid imur check
jekk ikollhom xi tazzi aħmar.

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Turban STEPHEN: Vince ma
anki taf huwa għandu biex jiċċekkjaw.

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Xi ħaġa oħra?

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Allura inti qal, għandu
iċċekkja jekk ikollu tazzi aħmar.

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Jimxi 'l quddiem.

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UDJENZA: X'hemm tazza aħmar?

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STEPHEN turban: X'hemm tazza aħmar?

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X'hemm tazza aħmar?

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Vince huwa konfuż.

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Allura Vince huwa ser jitkellmu biex
membru tagħna mitfugħa jmiss, Carl.

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U meta naħsbu dwar Carl, aħna
gotta jaħsbu dwar żewġ adjectives-- big

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hu ta 'kontroll, iżda huwa inkapaċi.

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>> Allura Vince goes-- hu
tmur, dak li huwa tazza aħmar?

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I do not know dak tazza aħmar huwa.

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Huwa dawriet madwar, u huwa jitlob Carl.

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Huwa jgħid, Carl, xi ħadd
talab għal kikkra ħamra.

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Inti tista 'tagħmel dan?

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U dak ma Carl jgħidu?

66
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Ejja figura hija out.

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Ma xi ħadd ikollu xi
idea dak Carl jgħid?

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U jien ser biss jirrepetu lura lilek.

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Rajt moviment idejn.

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>> UDJENZA: Huwa jgħidlekx xi ħadd
ieħor biex jiksbu l-cups aħmar.

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>> STEPHEN turban: Huwa jgħidlekx
xi ħadd ieħor biex jiksbu l-tazza aħmar.

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Eżattament.

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U għandna idea
li dik il-persuna tista 'tkun?

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00:03:49,010 --> 00:03:52,590

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Huwa ħjiel.

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Huwa ser tibda bil M. Mob?

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>> UDJENZA: Mudell.

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>> STEPHEN turban: Il-mudell, iva.

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Ismu mhix Mudell, sfortunatament,
minħabba li l-isem iblah.

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Għandna Mitt.

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U meta naħsbu dwar Mitt--
l-ebda, dan mhuwiex stampa ta Zack.

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00:04:12,970 --> 00:04:15,590

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Irridu naħsbu ta 'tnejn
aġġettivi ewlenin bi Mitt.

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Hu kapaċi, iżda huwa sottomessi.

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Allura Mitt jaf dak li jkun li tagħmel,
imma hu verament ma tistax tagħmel xejn.

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Jew hu verament ma tistax tiddeċiedi fuq tiegħu stess.

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>> Allura aħna għandna Carl.

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Carl shouts fil Mitt.

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U huwa jgħid, ħej Mitt, għandna bżonn tazzi aħmar.

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U Mitt tmur għall depożitarju tiegħu tazza aħmar.

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Huwa grabs tazza, u hu jagħtiha lura.

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Ma xi ħadd ikollu xi
idea dak li jiġri allura?

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00:04:51,360 --> 00:04:54,070

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Tagħti l-tazza.

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S'issa Mitt marret għal aħmar tiegħu
tazza repożitorju, meħuda it out,

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ċċekkjati off, qal,
I ħa tazza waħda ħamra.

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U hu li jagħtu lill Carl.

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Għandek xi idea?

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What do you think Carl ma?

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>> UDJENZA: Carl jagħtih lill Vince.

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>> Turban STEPHEN: Carl jagħtih lill Vince.

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Vince.

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>> UDJENZA: U Vince
juri li huwa [inaudible].

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Turban STEPHEN: Eżattament.

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Allura dan huwa eżattament dan.

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Allura Vince jieħu l-tazza,
lanqas taf dak li hi,

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imma hu juri lill-utent.

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Mela ejja jippruvaw jirrikreaw
dan verament fil-qosor.

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U aħna qed gonna bżonn
tliet voluntiera siekta,

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kif inti guys ma jkunux sejrin
li jkun jista 'jitkellem.

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Allura jista I grab tliet?

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OK.

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U li kieku inti tixtieq li tkun?

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>> UDJENZA: I ser tkun Vince.

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>> STEPHEN turban: Vince, OK.

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Beautiful iżda stupid.

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Great.

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Ħaddieħor?

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Aħna qed tfittex għal
kapaċi imma sottomessi.

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Ħaddieħor tixtieq li tkun kapaċi?

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>> UDJENZA: I jista 'jkun Carl.

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STEPHEN turban: Sweet.

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Imxejna ltqajna Carl.

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>> UDJENZA: Mitt.

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>> STEPHEN turban: Mitt, OK.

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U aħna qed tmur għall-ħtieġa
a-- I ser tkun il-klijent.

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Allura ġejjin fuq up, come fuq up.

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U huwa kulħadd fil-fehma?

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Allura jien ser jistaqsu Vince biex
stand fl-quddiem, biss jitbissem,

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biss jitbissem kemm bright kemm jista 'jkun.

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U aħna qed tmur biex jistaqsu Carl,
dritt, għaliex ma inti, simili,

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stand dritt wara tagħha?

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U Mitt, għaliex ma inti
biss jmorru off fid-dahar,

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u mbagħad I ser jagħtuk grupp
tal cups li hang out magħhom.

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>> Hekk jien klijent.

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I come.

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And I jagħmlu [inaudible] I
jgħidu, hi, nixtieq tazza.

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00:06:40,490 --> 00:06:43,214

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Perfect.

141
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Allura Vince m'għandha l-ebda idea.

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Allura dak li ma Vince do jmiss?

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00:06:46,915 --> 00:06:50,770

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Vince-- OK, hekk jien ser
li jkun narrating issa.

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>> Vince shouts fil Carl, tazza!

146
00:06:55,390 --> 00:06:58,840

147
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X'jagħmel Carl do?

148
00:07:00,790 --> 00:07:03,910
Carl yells fi Mitt.

149
00:07:03,910 --> 00:07:06,710
Mitt grabs tazza.

150
00:07:06,710 --> 00:07:08,220
Mitt jagħtih lill Carl.

151
00:07:08,220 --> 00:07:10,870
Carl jirritornaha lill Vince.

152
00:07:10,870 --> 00:07:12,640
U Vince juri lill-utent.

153
00:07:12,640 --> 00:07:17,960
>> U li huwa għoli, għolja,
għolja, dehra tant għoli lejn MVC.

154
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Aħna jaqsamha billi jkollhom ħsieb, liema
l-utent jara, kontrollur, xi ħadd

155
00:07:22,460 --> 00:07:25,760
li ma kollox fl-isfond
imma verament ma tistax taġġorna xejn

156
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jew ma tistax tagħmel xejn ta 'xi sinjifikat
ħlief ssejjaħ l-fehma u l-mudell.

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U allura għandna Mitt, il-mudell,
li jaġġorna x'ikun data li għandna.

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Allura nirringrazzjak tant għal sbieħ tagħna,
kontroll, u voluntiera kapaċi.

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U naħseb li ma kien.

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00:07:43,730 --> 00:07:45,040
>> [Applause]

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>> Naħseb Gabe huwa ser jitkellmu issa
fuq livell nisperaw inqas għoli.

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00:07:48,745 --> 00:07:51,600
>> GABRIEL Guimarães: OK, guys.

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00:07:51,600 --> 00:07:56,790
Issa ejja nitkellmu ftit aktar dwar
kodiċi u madwar Ruby fuq binarji stess,

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00:07:56,790 --> 00:08:00,750
u dwar kif dan jirrelata
kollha ta 'din l-istorja MVC.

165
00:08:00,750 --> 00:08:03,190
Bażikament, Ruby fuq binarji huwa qafas.

166
00:08:03,190 --> 00:08:04,640
Aktar dwar dan fit-tieni.

167
00:08:04,640 --> 00:08:07,760
>> Iżda biss biex jagħtuk
sens ta 'min s tużaha,

168
00:08:07,760 --> 00:08:12,240
simili, kollha ta 'dawn companies-- big
hekk GitHub, Groupon, Twitter--

169
00:08:12,240 --> 00:08:15,300
dawn qed kollha jużaw Ruby fuq
Binarji bħala l-qafas ewlieni tagħhom

170
00:08:15,300 --> 00:08:16,510
biex jimplimentaw il-websajt tagħhom.

171
00:08:16,510 --> 00:08:19,130
Hekk jien ċert ħafna ta 'nies
użaw dawn il-websites hawnhekk.

172
00:08:19,130 --> 00:08:24,470
U huwa Ruby kollu fuq il-binarji biex jimplimentaw
il-mudell, il-fehma, u l-kontrollur

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fuq kollha ta 'dawn is-siti u ħafna aktar.

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OK?

175
00:08:27,830 --> 00:08:32,090
>> Allura kif għidt, Ruby fuq
Binarji huwa qafas.

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U inti tista 'tip ta' taħseb ta 'qafas
fis-sens ta 'bħal bini ta' dar.

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Mela jekk inti qed tmur biex jibnu
a house-- u inti tista 'dejjem

178
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jibdew mill-bidunett, id-dritt?

179
00:08:40,653 --> 00:08:46,440
Tista 'tipprova toħroġ
bi mod biex raw l-injam,

180
00:08:46,440 --> 00:08:49,760
u biex iġibu l-injam għall-post, u
biex jiksbu l-ġebel fil-forma dritt,

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u mbagħad kollha ta 'dak.

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Iżda li għaddej biex tieħu
probabbilment lottijiet ta 'snin

183
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sakemm ikollok l-materjal kollu,
u inti tikseb kollox flimkien,

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u inti attwalment tibda
biex jibnu d-dar tiegħek.

185
00:08:58,790 --> 00:09:01,748
>> Għalhekk jirriżulta li jekk tibda out ma '
qafas ma 'xi ħaġa thats

186
00:09:01,748 --> 00:09:04,260
diġà tip ta 'fis-seħħ
għal kwalunkwe tip ta 'dar

187
00:09:04,260 --> 00:09:07,750
li inti tixtieq li build-- xi ħaġa
thats ġeneriċi ħafna, iżda li tista '

188
00:09:07,750 --> 00:09:12,850
imbagħad mudell lejn tiegħek stess
goals-- allura inti tista 'lieva

189
00:09:12,850 --> 00:09:16,800
dan il-poter ta 'l-oqfsa li jibnu
xi ħaġa ħafna, ħafna aktar mgħaġġla.

190
00:09:16,800 --> 00:09:17,300
OK.

191
00:09:17,300 --> 00:09:21,110
Allura dan huwa l-istess idea fi a
qafas għall-applikazzjoni tal-web

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00:09:21,110 --> 00:09:23,755
jew għal kwalunkwe tip ta '
applikazzjoni, għal dik il-kwistjoni.

193
00:09:23,755 --> 00:09:26,560
>> Inti fil-fatt tibda out
b'nofs applikazzjoni

194
00:09:26,560 --> 00:09:28,400
diġà hemm fis-seħħ għalik.

195
00:09:28,400 --> 00:09:32,230
U minn dak, I jfissirx li inti tikseb lottijiet ta '
fajls li diġà għandhom funzjonijiet,

196
00:09:32,230 --> 00:09:36,830
bħall-libreriji, bħall-funzjonalità,
u l-kmandi li inti tista 'taħdem sabiex

197
00:09:36,830 --> 00:09:40,500
biex jagħmlu l-ħajja tiegħek ħafna
sempliċi u eħfef.

198
00:09:40,500 --> 00:09:41,180
OK.

199
00:09:41,180 --> 00:09:43,555
>> Allura f'dan il-każ, aħna qed tmur
biex jitkellmu dwar Ruby fuq binarji.

200
00:09:43,555 --> 00:09:45,920
Hemm lottijiet ta 'differenti
oqfsa hemmhekk.

201
00:09:45,920 --> 00:09:47,550
Hemm Django għall Python.

202
00:09:47,550 --> 00:09:50,990
Hemm qafas Zend
jew Laravel għall PHP.

203
00:09:50,990 --> 00:09:52,390
Hemm lottijiet ta 'dawk differenti.

204
00:09:52,390 --> 00:09:56,830
Ruby fuq binarji hija waħda ġdida pretty sbieħ.

205
00:09:56,830 --> 00:10:01,600
A lott ta 'nies jużaw dik fil fetħu
u dan it-tip ta 'l-ambjent.

206
00:10:01,600 --> 00:10:04,250
U xi wħud minn dawn kbir ħafna
kumpaniji li I wera here qabel

207
00:10:04,250 --> 00:10:06,050
huma wkoll jużaw Ruby fuq binarji.

208
00:10:06,050 --> 00:10:10,070
>> Hekk biss biex jagħtuk
sens ta 'dak Ruby huwa

209
00:10:10,070 --> 00:10:13,030
simili, peress li inti guys huma aktar użati
li, bħall-, C u xi ftit ta 'PHP

210
00:10:13,030 --> 00:10:17,560
issa, sabiex Ruby se tkun il-
ekwivalenti ta 'PHP tiegħek f'dan is-sens.

211
00:10:17,560 --> 00:10:18,380
Dan mhux Ruby.

212
00:10:18,380 --> 00:10:19,830
Dan huwa Ċ OK?

213
00:10:19,830 --> 00:10:22,660
Iżda dan huwa bħall-
Funzjoni DJBHash li I

214
00:10:22,660 --> 00:10:27,170
know ħafna nies użati
għall misspellings PSET.

215
00:10:27,170 --> 00:10:29,670
>> U fl Ruby, pretty
ferm simili fil-PHP, inti

216
00:10:29,670 --> 00:10:32,745
jista 'jimplimenta dan ma
biss ftit linji ta 'kodiċi.

217
00:10:32,745 --> 00:10:34,870
Minflok ma jkollhom għalfejn tinkwieta
dwar il-funzjoni hash,

218
00:10:34,870 --> 00:10:37,950
ma joqogħdu jinkwetaw dwar il-bramel,
u kollha ta 'dak, inti tista' biss jgħidu,

219
00:10:37,950 --> 00:10:40,160
dizzjunarju = Hash.net.

220
00:10:40,160 --> 00:10:44,560
U allura inti tuża tip ta 'prodotti simili
l-istess idea li PHP kellhom.

221
00:10:44,560 --> 00:10:45,970
U hekk huwa li veru.

222
00:10:45,970 --> 00:10:48,080
U mbagħad jekk inti tixtieq li
jivverifikaw, għalhekk iċċekkja l-funzjoni

223
00:10:48,080 --> 00:10:51,560
tkun jekk dizzjunarju "foo"
jegwalja ugwali veru, ritorn veru.

224
00:10:51,560 --> 00:10:52,580
U li kollox, OK?

225
00:10:52,580 --> 00:10:54,030
>> Allura inti tinnota differenzi ftit.

226
00:10:54,030 --> 00:10:57,940
M'hemm l-ebda semi-colons
hawnhekk, kif kien hemm fil-C.

227
00:10:57,940 --> 00:11:00,710
Imma l-idea ġenerali hija simili ħafna.

228
00:11:00,710 --> 00:11:02,030
OK?

229
00:11:02,030 --> 00:11:08,010
>> Ukoll, fil Ruby, hemm ħaġar prezzjuż, li
huma tip ta 'l-libreriji Ruby.

230
00:11:08,010 --> 00:11:12,460
U binarji mankijiet minnhom fil
mod sabiħ ħafna għalik.

231
00:11:12,460 --> 00:11:15,480
Mela jekk inti tixtieq li tqiegħed
f'xi librerija li

232
00:11:15,480 --> 00:11:18,670
ma jagħmilx emails, jew li
ma sms,

233
00:11:18,670 --> 00:11:22,170
jew li ma l-integrazzjoni ma '
Facebook, jew kwalunkwe tip ta 'ħaġa

234
00:11:22,170 --> 00:11:24,374
bħal dik għall-app tiegħek,
huwa ħafna, faċli ħafna.

235
00:11:24,374 --> 00:11:26,790
Odds huma inti tista 'ssib xi ħaġa
bħal dik fuq l-internet.

236
00:11:26,790 --> 00:11:30,300
U huma biss jagħmlu
xi ħaġa bħal mressqa li

237
00:11:30,300 --> 00:11:32,290
gem inti tixtieq li tuża fil-fajl gem.

238
00:11:32,290 --> 00:11:33,749
U mbagħad Binarji jinstalla kollox.

239
00:11:33,749 --> 00:11:36,456
Inti ma għandekx għalfejn tinkwieta dwar xi
ta 'dak, b'tali mod li verament jibred.

240
00:11:36,456 --> 00:11:38,500
Ukoll, hemm ħafna,
ħafna ta 'għajnuna online.

241
00:11:38,500 --> 00:11:40,485
Allura inti tista 'ssib lottijiet ta' affarijiet.

242
00:11:40,485 --> 00:11:42,360
Jekk għandek xi żball,
inti tista 'biss Google lilha,

243
00:11:42,360 --> 00:11:45,090
u li għaddej biex tkun
faċli ħafna biex tikseb l-għajnuna.

244
00:11:45,090 --> 00:11:47,200
>> U huwa ħafna fun--
exactly-- għaliex inti

245
00:11:47,200 --> 00:11:51,420
ma għandekx għalfejn tinkwieta dwar il-livell baxx
Dettalji, l-implimentazzjoni ta 'tabelli hash

246
00:11:51,420 --> 00:11:58,080
u li jkollhom biex toħroġ bi kollha ta '
l-headers HTTP, u lottijiet ta 'affarijiet,

247
00:11:58,080 --> 00:12:00,197
u anki xi affarijiet livell aktar ogħla.

248
00:12:00,197 --> 00:12:02,030
Inti ma għandekx għalfejn tinkwieta
dwar dan fil-binarji.

249
00:12:02,030 --> 00:12:04,010
Tagħmlu ħafna, ħafna nicely għalik.

250
00:12:04,010 --> 00:12:07,490
U aħna qed tmur biex juru li
b'mod aktar konkret malajr ħafna.

251
00:12:07,490 --> 00:12:08,130
OK.

252
00:12:08,130 --> 00:12:09,750
>> Allura ftit dwar Ruby darb'oħra.

253
00:12:09,750 --> 00:12:11,420
Allura huwa biss bħal C, kif għidt.

254
00:12:11,420 --> 00:12:14,170
Minflok printf, ngħidu
"Tpoġġi," li huwa "mressaq string."

255
00:12:14,170 --> 00:12:18,100
Huwa jpoġġi string mal-console.

256
00:12:18,100 --> 00:12:20,601
U f'dan il-każ, aħna qed
biss istampar "Hello World."

257
00:12:20,601 --> 00:12:23,100
Aħna ma bżonn il-parentesi,
iżda huwa pjuttost ħafna simili.

258
00:12:23,100 --> 00:12:26,190
>> U mbagħad jekk inti tixtieq
biex tagħmel xi ħaġa hawn,

259
00:12:26,190 --> 00:12:30,450
bħal print mazz ta '"ż-żgħar" u
mazz ta '"bigs" fil-linja Filwaqt,

260
00:12:30,450 --> 00:12:32,060
huwa tip ta 'prodotti simili fis-C, id-dritt?

261
00:12:32,060 --> 00:12:35,090
Inti ma għandekx il-params,
imma hija pjuttost l-istess.

262
00:12:35,090 --> 00:12:37,300
Il-indentazzjoni hawn
għadd, hekk x ugwali 1.

263
00:12:37,300 --> 00:12:41,250
U allura Filwaqt x huwa iżgħar minn
50-- dan huwa Jekk, dan huwa Else.

264
00:12:41,250 --> 00:12:42,810
Huwa pretty ħafna bħal dak li inti raw.

265
00:12:42,810 --> 00:12:47,150
>> U mbagħad x + = 1 huwa biss inkrementazzjoni,
tip ta 'bħal tagħmel l-++ li inti tista'

266
00:12:47,150 --> 00:12:50,213
do C. Iżda huwa pjuttost
kemm dak li inti raw fil C.

267
00:12:50,213 --> 00:12:52,380
M'għandux ikun wisq ikkumplikat.

268
00:12:52,380 --> 00:12:54,320
Iżda huwa aktar qawwija.

269
00:12:54,320 --> 00:13:00,100
Allura hemm jikkmanda ftit hawn
li huma definittivament daqsxejn aktar ġodda.

270
00:13:00,100 --> 00:13:05,110
>> Hekk per eżempju, "tpoġġi."

271
00:13:05,110 --> 00:13:08,680
Tista 'tuża din notazzjoni hashtag
hawn biex biss print something--

272
00:13:08,680 --> 00:13:13,490
pretty ħafna bħal dak li inti se tagħmel jekk
l-% D jew% C jew kemmxejn bħal dik.

273
00:13:13,490 --> 00:13:17,600
U inti tista 'attwalment tpoġġi
Jekk id-dritt wara l-istqarrija.

274
00:13:17,600 --> 00:13:21,180
So I biss trid tagħmel this--
Jekk x huwa akbar minn 3.

275
00:13:21,180 --> 00:13:24,129
Allura għaliex kieku I għandhom
jagħmlu intiera Jekk blokk?

276
00:13:24,129 --> 00:13:24,670
I do not know.

277
00:13:24,670 --> 00:13:28,880
I tista 'biss print dan biss
jekk x ugwali akbar minn 3.

278
00:13:28,880 --> 00:13:32,740
Allura dan huwa mod linja waħda
ta 'kif isir dan fil Ruby.

279
00:13:32,740 --> 00:13:35,570
>> A lista fl Ruby huwa
xi ħaġa ferm versatili.

280
00:13:35,570 --> 00:13:38,110
Allura inti ma verament bżonn
li jkollhom waħda biss tip.

281
00:13:38,110 --> 00:13:40,674
Inti jista 'jkollhom string, u mbagħad
xi numri, u tkun xi tkun.

282
00:13:40,674 --> 00:13:42,590
U jekk inti tixtieq li tehmeż
xi ħaġa għal lista,

283
00:13:42,590 --> 00:13:46,860
inti tista 'biss tuża dan
notazzjoni dritt hawn.

284
00:13:46,860 --> 00:13:48,310
>> U jekk inti tixtieq li jtenni.

285
00:13:48,310 --> 00:13:56,200
Pretty ħafna l-4each fil-PHP, hawn, inti
jkollhom lista u inti tagħmel "List.each do."

286
00:13:56,200 --> 00:13:59,464
U dan "elem," dan huwa
bħall-isem ta 'kull element

287
00:13:59,464 --> 00:14:00,880
li jien ser ikollhom fil-lista tiegħi.

288
00:14:00,880 --> 00:14:03,890
U mbagħad I tista 'biss "tpoġġi elem."

289
00:14:03,890 --> 00:14:07,130
U "ipoġġi" pretty ħafna manki
tqegħid għalik,-istampar.

290
00:14:07,130 --> 00:14:09,920
Ma jimpurtax jekk
huwa string jew int.

291
00:14:09,920 --> 00:14:12,790
Huwa ser jaħdem dan out għalik.

292
00:14:12,790 --> 00:14:14,270
Dritt?

293
00:14:14,270 --> 00:14:14,790
Kessaħ.

294
00:14:14,790 --> 00:14:19,980
>> U bħad PHP, Ruby u HTML
tintegra wkoll ħafna, ħafna nicely.

295
00:14:19,980 --> 00:14:23,340
U hawn, hemm xi
HTML ma Ruby fiha.

296
00:14:23,340 --> 00:14:25,860
Allura aħna għandna korp tag bħal fil HTML.

297
00:14:25,860 --> 00:14:28,270
U jekk irridu li jiċċekkjaw
li utent huwa, per eżempju,

298
00:14:28,270 --> 00:14:35,730
illoggjat, nistgħu biss jgħidu, bidu ta '
Ruby, jekk user.logged_in ?, aħħar tal Ruby.

299
00:14:35,730 --> 00:14:39,240
Stampa din il-ħaġa sħiħa, li
għandha xi Ruby fiha, li huwa biss

300
00:14:39,240 --> 00:14:42,230
tip ta 'bħal dik sintassi għall
PHP li prints out varjabbli.

301
00:14:42,230 --> 00:14:43,380
Ejja jistampaw il-user.name.

302
00:14:43,380 --> 00:14:48,870
>> Allura merħba, Stephen,
ġewwa ta 'div HTML.

303
00:14:48,870 --> 00:14:53,760
U fl-aħħar, għandna "-tmiem" u
Kodiċi Ruby, li jfisser dan huwa tiegħi

304
00:14:53,760 --> 00:14:54,470
Jekk blokk.

305
00:14:54,470 --> 00:14:55,060
OK?

306
00:14:55,060 --> 00:14:57,684
Allura huwa biss bħal seamless
integrazzjoni bejn Ruby u HTML.

307
00:14:57,684 --> 00:15:00,056

308
00:15:00,056 --> 00:15:01,430
Hemm ukoll lottijiet ta 'riżorsi.

309
00:15:01,430 --> 00:15:06,290
Iżda qabel nimxu fuq, ma xi ħadd
ikollhom xi mistoqsijiet dwar Ruby, xejn?

310
00:15:06,290 --> 00:15:08,960
OK.

311
00:15:08,960 --> 00:15:12,250
>> Hemm lottijiet ta 'riżorsi online
li tryruby.org, Kodiċi Akkademja,

312
00:15:12,250 --> 00:15:18,740
ruby-lang.org, fejn inti tista 'tipprova
out fuq il-browser tiegħek qabel ma attwalment

313
00:15:18,740 --> 00:15:22,310
jgħidu, oh, OK, jien ser tuża
Ruby għall-proġett finali tiegħi.

314
00:15:22,310 --> 00:15:24,020
U hekk definittivament jagħtu dawk jipprova.

315
00:15:24,020 --> 00:15:26,510
Kollha ta 'dawn slides huma
ser tkun disponibbli onlajn,

316
00:15:26,510 --> 00:15:28,950
sabiex inti tista 'sempliċement tniżżilhom.

317
00:15:28,950 --> 00:15:30,115
And yes?

318
00:15:30,115 --> 00:15:31,889
>> UDJENZA: [inaudible]
dak li inti biss wera

319
00:15:31,889 --> 00:15:36,851
kien HTML u l-kodiċi mdaħħla fil
li dan il-kunċett tal-Mudell View

320
00:15:36,851 --> 00:15:37,350
Kontrollur?

321
00:15:37,350 --> 00:15:37,610
>> GABRIEL Guimarães: Iva.

322
00:15:37,610 --> 00:15:40,290
Aħna se tagħmel dan fit-tieni
meta aħna juru eżempju tagħna, OK?

323
00:15:40,290 --> 00:15:41,290
Grazzi għall-mistoqsija.

324
00:15:41,290 --> 00:15:44,760
Għalhekk il-kwistjoni kienet bażikament jekk aħna
jistgħu juru din l-integrazzjoni ta 'Ruby

325
00:15:44,760 --> 00:15:49,230
fil HTML fi ħdan il-Mudell
View qafas Kontrollur.

326
00:15:49,230 --> 00:15:51,710
>> Allura l-idea tal-Mudell
Qafas View Kontrollur

327
00:15:51,710 --> 00:15:55,740
huwa bażikament filosofija,
bħad Stephen wera hawn.

328
00:15:55,740 --> 00:15:58,177
U mhuwiex xi ħaġa
li għandek tagħmel,

329
00:15:58,177 --> 00:16:00,510
imma hija xi ħaġa li tagħmel
ħajja tiegħek tant sempliċi.

330
00:16:00,510 --> 00:16:04,170
U Ruby fuq binarji hija mibnija
madwar din il-filosofija tal-kodiċi.

331
00:16:04,170 --> 00:16:06,320
Allura aħna qed tmur biex juru
eżempju malajr ħafna.

332
00:16:06,320 --> 00:16:07,340
>> Allura Binarji hu mħabba.

333
00:16:07,340 --> 00:16:09,140
A lott ta 'nies qed jużaw dan, kif għidt.

334
00:16:09,140 --> 00:16:10,510
U huwa verament gost.

335
00:16:10,510 --> 00:16:12,360
You guys għandhom
definittivament jipprova hu.

336
00:16:12,360 --> 00:16:15,120
MVC jagħmel kollox aktar sempliċi.

337
00:16:15,120 --> 00:16:18,110
Allura l-Mudell View-Kontrollur,
l-affarijiet jisseparaw

338
00:16:18,110 --> 00:16:21,450
u t-tqegħid persuna waħda, per se,
jew parti waħda tal-applikazzjoni tiegħek

339
00:16:21,450 --> 00:16:24,850
biex jagħmlu kull wieħed mill-impjiegi differenti
li inti l-applikazzjoni għandha tagħmel.

340
00:16:24,850 --> 00:16:26,676
U inqas ħin mgħoddi
dwar problemi ta 'livell baxx.

341
00:16:26,676 --> 00:16:27,800
U popolari ħafna dritt issa.

342
00:16:27,800 --> 00:16:29,917
Għandna binarji 4.0,
li huwa verżjoni ġdida.

343
00:16:29,917 --> 00:16:31,500
U niġu ma 'lott ta' għalf jibred.

344
00:16:31,500 --> 00:16:32,562
Mistoqsija oħra.

345
00:16:32,562 --> 00:16:34,490
>> UDJENZA: Mistoqsija oħra.

346
00:16:34,490 --> 00:16:39,310
Ruby fuq binarji versus
Ruby fuq binarji Grails.

347
00:16:39,310 --> 00:16:40,230
>> GABRIEL Guimarães: OK.

348
00:16:40,230 --> 00:16:42,252
Il-kwistjoni kienet, Ruby
fuq il-binarji kontra Ruby--

349
00:16:42,252 --> 00:16:42,960
UDJENZA: Grails.

350
00:16:42,960 --> 00:16:43,490
Ruby?

351
00:16:43,490 --> 00:16:44,490
>> GABRIEL Guimarães: Yeah.

352
00:16:44,490 --> 00:16:45,955
Allura Ruby huwa l-lingwa.

353
00:16:45,955 --> 00:16:46,745
>> UDJENZA: No

354
00:16:46,745 --> 00:16:50,360
Jien inti titlob sabiex tqabbel lingwa
u qafas, Ruby fuq binarji,

355
00:16:50,360 --> 00:16:52,975
ma b'lingwa oħra popolari
framework-- Grails-- ma Ruby

356
00:16:52,975 --> 00:16:53,310
fuq il-binarji.

357
00:16:53,310 --> 00:16:53,720
>> GABRIEL Guimarães: OK.

358
00:16:53,720 --> 00:16:54,480
Jiddispjacini.

359
00:16:54,480 --> 00:16:57,390
Il-kwistjoni ġiet, iqabblu
Ruby u Ruby fuq binarji

360
00:16:57,390 --> 00:16:59,750
li qafas ieħor u another--

361
00:16:59,750 --> 00:17:01,022
>> UDJENZA: Ruby.

362
00:17:01,022 --> 00:17:01,954
Huwa OK.

363
00:17:01,954 --> 00:17:03,820
Jekk ma tkunx taf dwar dan, li l-multa.

364
00:17:03,820 --> 00:17:05,359
>> GABRIEL Guimaraes: Bħal,
dak li nifhem hu that--

365
00:17:05,359 --> 00:17:07,080
>> UDJENZA: Hemm ieħor
qafas imsejħa Grails.

366
00:17:07,080 --> 00:17:07,700
>> GABRIEL Guimaraes: Oh, Grails.

367
00:17:07,700 --> 00:17:08,650
I qatt semgħu biha.

368
00:17:08,650 --> 00:17:09,640
Jiddispjacini.

369
00:17:09,640 --> 00:17:11,690
I qatt semgħu Groovy fuq il-binarji.

370
00:17:11,690 --> 00:17:12,744
Jiddispjacini.

371
00:17:12,744 --> 00:17:14,869
>> UDJENZA: Huwa ħafna aħjar
integrati ma Java.

372
00:17:14,869 --> 00:17:15,450
>> GABRIEL Guimarães: nara.

373
00:17:15,450 --> 00:17:17,555
>> UDJENZA: Jien sempliċiment kurjuż
dwar xi nies li naf like--

374
00:17:17,555 --> 00:17:20,240
>> GABRIEL Guimaraes: Le, jien qatt
semgħu li wieħed, sfortunatament.

375
00:17:20,240 --> 00:17:20,700
Grails.

376
00:17:20,700 --> 00:17:21,410
>> UDJENZA: U xi nies
ovvjament bħal Ruby fuq binarji.

377
00:17:21,410 --> 00:17:22,640
>> GABRIEL Guimarães: stajt
Ruby użati fuq binarji lott.

378
00:17:22,640 --> 00:17:24,790
Stajt użati xi Django
ma Python, kif għidt.

379
00:17:24,790 --> 00:17:26,329
Stajt użati xi Laravel.

380
00:17:26,329 --> 00:17:29,490
Imma I ma kinux użati Groovy fuq il-binarji.

381
00:17:29,490 --> 00:17:31,630
Jiddispjacini.

382
00:17:31,630 --> 00:17:34,040
U huwa popolari ħafna
issa ma binarji 4.0.

383
00:17:34,040 --> 00:17:38,180
Bħal, xi wħud mill-għalf li Binarji
ma għalik, per eżempju, huwa inti

384
00:17:38,180 --> 00:17:43,650
jkollhom lottijiet ta 'fajls CSS u
lottijiet ta 'JavaScript fajls.

385
00:17:43,650 --> 00:17:45,790
U inti tista jittrattawhom bħala
separata u kollox.

386
00:17:45,790 --> 00:17:50,010
>> Iżda mbagħad automatically-- meta
inti tibgħat kodiċi tiegħek mal-produzzjoni,

387
00:17:50,010 --> 00:17:52,770
awtomatikament jikkompila
lilhom kollha f'waħda fajl waħdieni

388
00:17:52,770 --> 00:17:55,150
thats minified mingħajr ebda
spazji, b'mod li jieħu

389
00:17:55,150 --> 00:17:59,400
spazju inqas fl-applikazzjoni tiegħek, so
li inti tista 'verament' skala ħafna affarijiet.

390
00:17:59,400 --> 00:18:04,380
C'est kumpaniji kbar għaliex dawn
bħal Twitter u GitHub

391
00:18:04,380 --> 00:18:10,220
huma jużaw binarji, għaliex ma kollha
dan għalik, li huwa verament jibred.

392
00:18:10,220 --> 00:18:12,840
>> Ħaġa waħda li hija ħafna,
ħafna, ferm kbar

393
00:18:12,840 --> 00:18:18,450
għal persuni, inkluż me,
li qed jippruvaw biex jaħdmu

394
00:18:18,450 --> 00:18:22,430
b'qafas fil-bidu, huwa
li meta tibda out applikazzjoni,

395
00:18:22,430 --> 00:18:24,440
int ser tara mazz ta 'fajls.

396
00:18:24,440 --> 00:18:28,460
Bħal, meta inti toħloq
Binarji Ġdida, Applikazzjoni My,

397
00:18:28,460 --> 00:18:31,710
int ser tara kollha ta 'dawn
folders-- app, bin, konfigurazzjoni, db, LIB,

398
00:18:31,710 --> 00:18:32,482
log, pubbliku.

399
00:18:32,482 --> 00:18:33,690
Bħal, lottijiet u lottijiet ta 'għalf.

400
00:18:33,690 --> 00:18:35,030
>> U l-ewwel darba I
raw li, I kien simili,

401
00:18:35,030 --> 00:18:36,570
OK, għandi l-ebda idea x'inhu għaddej.

402
00:18:36,570 --> 00:18:38,890
I biss jixtiequ joħolqu
websajt bil "Hello, dinja,"

403
00:18:38,890 --> 00:18:41,730
u dan qed tagħti me, bħal,
100000000000 paġni differenti.

404
00:18:41,730 --> 00:18:43,070
I do not know x'inhu għaddej.

405
00:18:43,070 --> 00:18:47,460
Allura jekk jogħġbok ma jkun wisq skoraġġuti minn dak.

406
00:18:47,460 --> 00:18:53,699
>> L-idea hija li attwalment għandha half
ta 'dar hemmhekk għalik diġà.

407
00:18:53,699 --> 00:18:55,490
Hija għandha intiera
qafas għall inti diġà.

408
00:18:55,490 --> 00:18:56,948
C'est pourquoi hemm daqstant files.

409
00:18:56,948 --> 00:19:00,150
Imma l-ħaġa sbieħ hija li
jifred kollha kemm ħafna nicely.

410
00:19:00,150 --> 00:19:03,370
Odds huma inti ma għandekx għalfejn tinkwieta
dwar ħafna minn dawn folders.

411
00:19:03,370 --> 00:19:05,820
>> L-aktar wieħed importanti, I
ngħid, hija l-folder app,

412
00:19:05,820 --> 00:19:07,147
fejn app tiegħek attwalment jgħix.

413
00:19:07,147 --> 00:19:09,730
Allura l-konfigurazzjoni, int ser
jkollhom configurate xi għalf,

414
00:19:09,730 --> 00:19:12,840
bħall-database tiegħek u affarijiet simili
liema tip ta 'database inti qed tuża.

415
00:19:12,840 --> 00:19:17,430
Iżda minbarra dan, bħal ħafna
xogħol tiegħek se jsir app.

416
00:19:17,430 --> 00:19:21,620
Allura fil-app, inti għandek assi, kontrolluri,
helpers, dawk li jibagħtu, mudelli, fehmiet.

417
00:19:21,620 --> 00:19:24,460
Allura hawnhekk, inti tibda tara li
kontrolluri, mudelli, u l-fehmiet come

418
00:19:24,460 --> 00:19:25,410
fis-play.

419
00:19:25,410 --> 00:19:27,270
>> Dawk li jibagħtu huma biss jekk int
trid tibgħat emails.

420
00:19:27,270 --> 00:19:29,400
Helpers jekk inti tixtieq li
joħolqu xi funzjonijiet

421
00:19:29,400 --> 00:19:32,050
li tuża ħafna fil-fehma.

422
00:19:32,050 --> 00:19:34,490
Allura inti tpoġġihom fil helpers.

423
00:19:34,490 --> 00:19:39,000
U l-assi huwa bażikament kollha ta '
immaġini tiegħek, li kollha CSS tiegħek,

424
00:19:39,000 --> 00:19:41,200
kollha ta 'tiegħek JavaScript,
u bħal dawk it-tipi

425
00:19:41,200 --> 00:19:43,110
ta 'affarijiet li nikseb mibgħuta lill-klijent.

426
00:19:43,110 --> 00:19:45,500
U dak kollu li huwa fl-assi,
li għidt qabel, gets minified.

427
00:19:45,500 --> 00:19:45,940
Huwa kkompilata.

428
00:19:45,940 --> 00:19:49,189
U inti ma verament ikollhom għalfejn tinkwieta dwar
li meta tmur għall-kodiċi tal-produzzjoni.

429
00:19:49,189 --> 00:19:49,770
Kessaħ.

430
00:19:49,770 --> 00:19:54,205
>> Issa Zack għaddej biex jidħlu fi, u hu
ser tagħmel eżempju ta Twitter50.

431
00:19:54,205 --> 00:19:54,970
>> UDJENZA: Woo-hoo!

432
00:19:54,970 --> 00:19:56,726
>> Zack CHAUVIN: biża.

433
00:19:56,726 --> 00:20:00,180
So I kellha l-opportunità li jaħdmu
ma Ruby fuq binarji dan is-sajf.

434
00:20:00,180 --> 00:20:01,580
Huwa ta 'qafas aqwa.

435
00:20:01,580 --> 00:20:03,580
Ninsab tassew parzjali lilha.

436
00:20:03,580 --> 00:20:09,770
U jien ser biss nuruk ftit ta '
eżempju ta 'dak li jista' look like.

437
00:20:09,770 --> 00:20:11,020
Jaqbżu fuq għall Chrome.

438
00:20:11,020 --> 00:20:16,350
Allura dan huwa eżempju ta 'sempliċi ħafna
Ruby fuq binarji application-- xi ħaġa

439
00:20:16,350 --> 00:20:19,690
bħal din hija xi ħaġa
li Ruby verament jeċċella

440
00:20:19,690 --> 00:20:24,070
that-- biss fejn tiegħek
mudelli huma ħafna definiti sew.

441
00:20:24,070 --> 00:20:27,150
>> F'dan l-eżempju, tkun taf tara
żewġ mudelli differenti, li

442
00:20:27,150 --> 00:20:30,380
huma li għandna l-utenti
u għandna tweets.

443
00:20:30,380 --> 00:20:33,480
Allura dan huwa Twitter50,
Twitter stess Harvard.

444
00:20:33,480 --> 00:20:36,820
Kif tistgħu taraw, jien illoggjat bħalazack.

445
00:20:36,820 --> 00:20:38,860
U jien kapaċi jagħmlu tweets ġodda.

446
00:20:38,860 --> 00:20:42,266
So I think-- "Dan huwa" - sorry?

447
00:20:42,266 --> 00:20:43,182
UDJENZA: [inaudible].

448
00:20:43,182 --> 00:20:44,061
Zack CHAUVIN: Oh, OK.

449
00:20:44,061 --> 00:20:45,060
Bżonn li tieqaf il-server.

450
00:20:45,060 --> 00:20:47,480
Eċċellenti.

451
00:20:47,480 --> 00:20:49,630
Allura aħna qegħdin hawn.

452
00:20:49,630 --> 00:20:52,520
Kif tistgħu taraw, aħna għandna tagħna
Twitter applikazzjoni dritt hawn.

453
00:20:52,520 --> 00:20:55,020
U huwa super faċli biex tibda l-server.

454
00:20:55,020 --> 00:20:57,991
Aħna ser biss tagħmel "binarji server."

455
00:20:57,991 --> 00:20:58,490
Great.

456
00:20:58,490 --> 00:20:58,990
OK.

457
00:20:58,990 --> 00:21:00,830
Grazzi għal dan.

458
00:21:00,830 --> 00:21:02,200
Allura issa aħna qed taħdem.

459
00:21:02,200 --> 00:21:06,120
>> U aħna ser ngħidu, "Dan
huwa seminar tal-biża. "

460
00:21:06,120 --> 00:21:08,870
U ejja ara dak li jiġri.

461
00:21:08,870 --> 00:21:10,020
Allura aħna ser tweet dwar dan.

462
00:21:10,020 --> 00:21:13,390
Down fil-qiegħ, inti tista 'tara
issa hemm aktar minn tliet tweets.

463
00:21:13,390 --> 00:21:15,980
Allura aħna għandna ftit
ta 'numerazzjoni għaddej.

464
00:21:15,980 --> 00:21:19,640
U aħna għandna dak tweet.

465
00:21:19,640 --> 00:21:24,010
U nista 'wkoll tfittex permezz tiegħi
tfittxija tweets-- għal dan u l-tnejn

466
00:21:24,010 --> 00:21:27,960
dawk li għandhom l-kelma
"Dan" fihom juru up.

467
00:21:27,960 --> 00:21:30,860
Nistgħu wkoll iħassar tweets mill
tikklikkja fuq il-buttuna Ħassar ftit.

468
00:21:30,860 --> 00:21:36,440
U ovvjament, I tista 'tħassar biss
il-post li ikkontrollata minn lili.

469
00:21:36,440 --> 00:21:39,030
>> Diġà, aħna kważi jkollhom l-
funzjonalità ta 'Twitter.

470
00:21:39,030 --> 00:21:42,000
Bħal, meta taħseb dwar dan, Twitter
verament ma tagħmel dak kollu li ħafna.

471
00:21:42,000 --> 00:21:44,280
Hija għandha l-utenti, hija għandha tweets.

472
00:21:44,280 --> 00:21:47,690
Hemm xi funzjonalità aktar kumplessi.

473
00:21:47,690 --> 00:21:52,960
Imma meta inti verament tikseb jistabbilixxi lilu,
huwa pjuttost Ruby fuq binarji app sempliċi.

474
00:21:52,960 --> 00:21:57,560
U xi ħaġa bħal din, bil-
għarfien tajjeb ta 'Ruby fuq binarji,

475
00:21:57,560 --> 00:22:00,680
inti tista 'probabbilment
jagħmlu fl-siegħa jew tnejn.

476
00:22:00,680 --> 00:22:04,210
>> U li verament jaqa
lura għall-Mantra Ruby,

477
00:22:04,210 --> 00:22:07,540
li huwa konvenzjoni fuq il-konfigurazzjoni.

478
00:22:07,540 --> 00:22:10,965
Allura lura fil-ġurnata, in-nies, ghaċ
huma riedu jagħmlu din il-websajt,

479
00:22:10,965 --> 00:22:12,340
jkollhom jibdew mill-bidunett.

480
00:22:12,340 --> 00:22:13,740
OK, I tixtieq li tagħmel website.

481
00:22:13,740 --> 00:22:15,970
Ejja jagħmlu dan il-fajl u
dan il-fajl u dan il-fajl.

482
00:22:15,970 --> 00:22:19,180
>> Bil Ruby fuq binarji,
hemm xejn ta 'dak.

483
00:22:19,180 --> 00:22:21,170
You say, I tixtieq app ġdida.

484
00:22:21,170 --> 00:22:25,010
U bħad Gabe wrewna, huwa
joħloq l-istruttura tal-fajl kollu għalina.

485
00:22:25,010 --> 00:22:27,490
U aħna biss jibdlu l-
partijiet ftit li għandna bżonn biex.

486
00:22:27,490 --> 00:22:31,570
Aħna biss customize dak
uniku dwar app tagħna.

487
00:22:31,570 --> 00:22:32,250
Kessaħ.

488
00:22:32,250 --> 00:22:38,540
Allura jmorru lura għall-preżentazzjoni tagħna
preview-- interessanti.

489
00:22:38,540 --> 00:22:41,408

490
00:22:41,408 --> 00:22:42,724
Fejn nista preżenti?

491
00:22:42,724 --> 00:22:43,640
UDJENZA: Full screen.

492
00:22:43,640 --> 00:22:45,715
Top dritt.

493
00:22:45,715 --> 00:22:48,480
>> Zack CHAUVIN: Eċċellenti.

494
00:22:48,480 --> 00:22:48,990
Kessaħ.

495
00:22:48,990 --> 00:22:49,490
OK.

496
00:22:49,490 --> 00:22:51,480
Allura l-ewwel nett, il-mudell.

497
00:22:51,480 --> 00:22:54,100
Stephen għamlet biża
xogħol ta jiddeskrivi MVC.

498
00:22:54,100 --> 00:22:57,980
U issa aħna qed tmur biex jirrelataw
li lura lill Ruby fuq binarji.

499
00:22:57,980 --> 00:23:00,730
Allura l-mudell inti tista tip
ta jaħsbu bħala l-database.

500
00:23:00,730 --> 00:23:04,870
You ħadthom ġiet tara dan fil CS50
Finanzi, fejn il-ħwienet mudell

501
00:23:04,870 --> 00:23:07,590
l-informazzjoni dwar
kemm ħażniet għandek,

502
00:23:07,590 --> 00:23:10,986
jew it-tranżazzjonijiet kollha li tkun għamilt.

503
00:23:10,986 --> 00:23:12,860
Dan huwa eżempju ta '
linja ta 'kif inti kieku

504
00:23:12,860 --> 00:23:15,640
go dwar teħid ta 'mudell ġdid fil binarji.

505
00:23:15,640 --> 00:23:17,102
So I tixtieq utent.

506
00:23:17,102 --> 00:23:19,060
Huwa ser ikollhom
email, li huwa string,

507
00:23:19,060 --> 00:23:20,990
u password, li
huwa wkoll l-sekwenza.

508
00:23:20,990 --> 00:23:27,150
Allura huwa simili those-- Irrid kull filliera
fit-tabella tiegħi ta 'l-utenti biex tfittex bħal dik.

509
00:23:27,150 --> 00:23:30,730
>> A part verament tal-biża
dwar Binarji huwa li

510
00:23:30,730 --> 00:23:33,755
jagħmilha neċessarju li
jikteb xi SQL pretty ħafna.

511
00:23:33,755 --> 00:23:38,640
Kemm inti guys imħabba
miktub SQL fil PSET 7?

512
00:23:38,640 --> 00:23:39,770
Eżattament.

513
00:23:39,770 --> 00:23:41,840
SQL ma tantx hu faċli għall-utent.

514
00:23:41,840 --> 00:23:46,470
U Binarji astratti kollu li away
ma 'dawn il-kmandijiet verament faċli.

515
00:23:46,470 --> 00:23:51,580
Għalhekk, per eżempju, jekk ikollna
utent, l-utent għandu ħafna tweets.

516
00:23:51,580 --> 00:23:56,580
U kull wieħed minn dawk
tweets jappartjeni lil utent.

517
00:23:56,580 --> 00:23:59,520
>> Mela jekk inti tħares hawn, dan
huwa mudell tagħna għal tweet tagħna.

518
00:23:59,520 --> 00:24:02,750
U kollha għandna ngħid huwa
dan line-- waħda jien tweet

519
00:24:02,750 --> 00:24:05,090
u I jappartjenu lil utent.

520
00:24:05,090 --> 00:24:10,160
U ma dik il-linja waħda u
Ftit ftit ta 'konfigurazzjoni database,

521
00:24:10,160 --> 00:24:12,990
Binarji tistabbilixxi din ir-relazzjoni.

522
00:24:12,990 --> 00:24:17,450
Ghaċ, I tista 'biss jgħidu, zack.tweets,
simili, agħti lili kollha tweets Zack.

523
00:24:17,450 --> 00:24:19,420
Nru SQL.

524
00:24:19,420 --> 00:24:20,040
Super faċli.

525
00:24:20,040 --> 00:24:26,580
Għal darb'oħra, dan huwa konvenzjoni fuq
konfigurazzjoni bidu fis play.

526
00:24:26,580 --> 00:24:29,770
>> Tista 'tara ftit
ta eżempju ta 'Ruby hawn.

527
00:24:29,770 --> 00:24:32,740
Like Taw qal, kitba Ruby huwa
tip ta 'bħall-kitba bl-Ingliż.

528
00:24:32,740 --> 00:24:35,540
Huwa lingwa ħafna ta 'livell għoli,
u jagħmilha verament faċli

529
00:24:35,540 --> 00:24:42,380
għalina li ngħid affarijiet simili, nixtieq li
kun żgur li dan tweet tkun korp.

530
00:24:42,380 --> 00:24:43,740
Preżenza tagħha huwa veru.

531
00:24:43,740 --> 00:24:47,170
U nixtieq li jagħmlu ċert li din
tweet, bħad normali Twitter,

532
00:24:47,170 --> 00:24:49,020
għandha tul max ta '140.

533
00:24:49,020 --> 00:24:52,800
Huwa super-intuwittivi, a
lingwa verament kbir.

534
00:24:52,800 --> 00:24:54,590
>> Li jmiss up aħna għandna l-opinjoni.

535
00:24:54,590 --> 00:24:57,510
Allura dan jinvolvi HTML u CSS.

536
00:24:57,510 --> 00:25:00,490
U hawnhekk eżempju ta 'opinjoni.

537
00:25:00,490 --> 00:25:05,600
Allura Ruby fuq binarji tip ta 'ħarir
tintegra kemm Ruby u HTML

538
00:25:05,600 --> 00:25:08,880
sabiex jiġġeneraw
dak li rridu fuq il-paġna.

539
00:25:08,880 --> 00:25:11,380
Allura dan huwa eżempju ta 'tqassim tagħna.

540
00:25:11,380 --> 00:25:15,710
Allura inti tista 'tara xi tags li inti
guys huma użati biex, bħall HTML, korp,

541
00:25:15,710 --> 00:25:17,250
dak kollu li Jittieħed tajba.

542
00:25:17,250 --> 00:25:21,760
>> U d-dritt fil hawn, għalkemm, aħna
tinkorpora xi wħud Ruby billi qal,

543
00:25:21,760 --> 00:25:25,390
jekk hemm messaġġ li juri,
mbagħad juru l-messaġġ fi div.

544
00:25:25,390 --> 00:25:28,060
So I mhux se tikseb wisq f'dak.

545
00:25:28,060 --> 00:25:31,190
Iżda dan huwa ġeneralment
paġna li gets mogħtija on--

546
00:25:31,190 --> 00:25:33,960
u l-ebda kwistjoni dak page int
fuq, dan wieħed gets mogħtija.

547
00:25:33,960 --> 00:25:38,110
Allura dan huwa dak gets inkluż dejjem.

548
00:25:38,110 --> 00:25:38,980
Kessaħ.

549
00:25:38,980 --> 00:25:42,730
>> Eżempju ieħor ta 'view-- dan huwa
dak fejn hija għażlet l-tweets.

550
00:25:42,730 --> 00:25:45,630
U xi wħud dan il-għalf
tista 'tidher pjuttost familjari.

551
00:25:45,630 --> 00:25:50,050
Hekk per eżempju, dritt hawn, aħna qed
looping permezz kull wieħed mill-tweets,

552
00:25:50,050 --> 00:25:51,960
u aħna qed tistamphom out.

553
00:25:51,960 --> 00:25:54,320
Allura hawnhekk huwa fejn aħna qed
istampar tal-ġisem.

554
00:25:54,320 --> 00:26:00,910
U jekk user-- tal-tweet tal-Heres
Eżempju reali ta 'ebda SQL huwa involut.

555
00:26:00,910 --> 00:26:04,390
Jien biss tistaqsi, hija din il-
utent tweet tal-utent attwali?

556
00:26:04,390 --> 00:26:06,030
Imbagħad juru rabta iħassarha.

557
00:26:06,030 --> 00:26:06,880
Huwa super sempliċi.

558
00:26:06,880 --> 00:26:09,670

559
00:26:09,670 --> 00:26:10,920
>> Il-kontrollur.

560
00:26:10,920 --> 00:26:14,390
Allura dan huwa, għal darb'oħra, l-interface
bejn il-mudell u l-opinjoni.

561
00:26:14,390 --> 00:26:17,820
Hu l-waħda li ma l-ħidma iebsa
tal interacting-- huma l-pitkal.

562
00:26:17,820 --> 00:26:20,980
Tagħbijiet informazzjoni għar-
ħsieb, li aħna ser tara fil taqs.

563
00:26:20,980 --> 00:26:23,850
U sabiex jinteraġixxu
mal-mudell, huwa

564
00:26:23,850 --> 00:26:29,170
jitlob metodi mudell, li huma dak li
inti guys huma familjari bħala funzjonijiet.

565
00:26:29,170 --> 00:26:31,490
>> Hekk per eżempju, dan huwa
kontrollur tweet tagħna.

566
00:26:31,490 --> 00:26:33,930
Hija tista 'tfittex ftit
intimidanti dritt issa.

567
00:26:33,930 --> 00:26:38,240
Iżda huwa attwalment super intuwittivi
ladarba tibda għadis.

568
00:26:38,240 --> 00:26:42,990
Hekk per eżempju, fl-indiċi tagħna, thats
fejn irridu li juru l-tweets.

569
00:26:42,990 --> 00:26:46,910
U hekk din il-linja bażikament
biss jitlob għal kulħadd l-tweets.

570
00:26:46,910 --> 00:26:50,300
U allura aħna initialize kemm
l tweet-- ġodda hekk like

571
00:26:50,300 --> 00:26:52,320
jekk huma jixtiequ li joħolqu
tweet ġdida dwar dik il-paġna.

572
00:26:52,320 --> 00:26:54,250
>> U hija tistaqsi liema l-utent attwali hija.

573
00:26:54,250 --> 00:26:58,850
U dan huwa simili ħafna għall-
jirrendu li inti raw fil PSET 7,

574
00:26:58,850 --> 00:27:02,230
fejn huwa biss tip ta 'javżak
l view-- huwa tip ta ', bħal,

575
00:27:02,230 --> 00:27:06,284
tgħaddi l-varjabbli li int
ser bżonn fil-ħsieb ta 'l-opinjoni.

576
00:27:06,284 --> 00:27:08,200
U hemm mazz sħiħ
Metodi ta 'differenti

577
00:27:08,200 --> 00:27:10,410
dak il-kontrollur dan tweet jistgħu jimmaniġġjaw.

578
00:27:10,410 --> 00:27:12,495
>> Imma verament, binarji ma
biċċa xogħol tajba ta 'tip

579
00:27:12,495 --> 00:27:18,910
ta jqassmuhom fil-differenti
azzjonijiet li kontrollur tiegħek jista 'tagħmel.

580
00:27:18,910 --> 00:27:23,800
Hemm xi mistoqsijiet dwar
kwalunkwe mill-partijiet MVC ta binarji?

581
00:27:23,800 --> 00:27:25,550
Tip ta 'ftit breeze permezz.

582
00:27:25,550 --> 00:27:29,250
Allura inti guys tista 'check
out fuq tiegħek.

583
00:27:29,250 --> 00:27:30,106
Tal-biża.

584
00:27:30,106 --> 00:27:31,200
Aħna ser iżommu għaddejjin.

585
00:27:31,200 --> 00:27:32,546
>> Allura installazzjoni binarji.

586
00:27:32,546 --> 00:27:35,170
Installazzjoni binarji jista 'jkun, bħal,
wieħed mill-partijiet aktar qtigħ il-qalb

587
00:27:35,170 --> 00:27:37,830
ta 'l-binarji sħaħ
proċess, sfortunatament.

588
00:27:37,830 --> 00:27:40,450
Iżda ovvjament, kollha ta '
minna huma madwar biex jgħinu.

589
00:27:40,450 --> 00:27:42,590
U ladarba huwa fuq hemmhekk,
lott ta 'riżorsi kbira,

590
00:27:42,590 --> 00:27:45,100
kif Gabe imsemmi, għall jkollna beda.

591
00:27:45,100 --> 00:27:47,230
Hawn huma l-links li
ikollok bzonn sabiex

592
00:27:47,230 --> 00:27:51,460
biex tniżżel binarji biex tiksbu
installat fuq magna tiegħek.

593
00:27:51,460 --> 00:27:54,240
Ovvjament, huwa disponibbli
kemm għall-Windows u Mac

594
00:27:54,240 --> 00:27:55,600
u għall-appliance CS50.

595
00:27:55,600 --> 00:27:58,520

596
00:27:58,520 --> 00:28:00,020
Mistoqsijiet dwar xi ħaġa konna qal?

597
00:28:00,020 --> 00:28:04,265

598
00:28:04,265 --> 00:28:06,690
>> UDJENZA: Inkun
interessat, actually--

599
00:28:06,690 --> 00:28:10,255
so I jafu li downloading
software hija l-akbar ostakolu.

600
00:28:10,255 --> 00:28:14,807
Jekk ikun hemm interess biżżejjed biex ikollhom
downloading sessjoni mini jew xi ħaġa.

601
00:28:14,807 --> 00:28:15,640
Zack CHAUVIN: Mm-hm.

602
00:28:15,640 --> 00:28:15,692
Yeah.

603
00:28:15,692 --> 00:28:16,900
Li jista 'jkun verament utli.

604
00:28:16,900 --> 00:28:20,650
Jekk xi ħadd verament gung-ho dwar
jużaw dan għall-proġett tagħhom

605
00:28:20,650 --> 00:28:26,555
jew fil-futur, allura aħna'd definittivament
jkunu kuntenti biex jitkellem miegħek dwar dan.

606
00:28:26,555 --> 00:28:27,055
Mm-hm.

607
00:28:27,055 --> 00:28:29,530
>> UDJENZA: A kwistjoni relatat
għal dak li staqsejt qabel.

608
00:28:29,530 --> 00:28:32,563
Għal dawk minnkom li għamlu
oqfsa oħra li għadhom

609
00:28:32,563 --> 00:28:34,354
jippruvaw jagħmlu l-istess
ħaġa, jagħmilha aktar faċli

610
00:28:34,354 --> 00:28:38,452
li tibni website jew
funzjonalità, naħseb ebda sens

611
00:28:38,452 --> 00:28:43,653
ta 'għaliex aħna se jkun fuq il-binarji versus
Zend jew xi wħud mill-oqfsa oħra

612
00:28:43,653 --> 00:28:44,236
u l-lingwi.

613
00:28:44,236 --> 00:28:47,870
>> Zack CHAUVIN: I taf biss
jgħidu tiegħi 0.02 $ dwar dan.

614
00:28:47,870 --> 00:28:49,090
I love Ruby fuq binarji.

615
00:28:49,090 --> 00:28:52,120
I kellna l-opportunità li jaħdmu
kemm fil PHP u Ruby fuq binarji.

616
00:28:52,120 --> 00:28:55,291
I ħafna jippreferu Ruby fuq
Binarji minħabba Ruby.

617
00:28:55,291 --> 00:28:56,790
Żgur, li parti kbira ta 'dan.

618
00:28:56,790 --> 00:28:58,140
Bħal, meta int
jagħżlu qafas tiegħek,

619
00:28:58,140 --> 00:28:59,490
inti wkoll tagħżel lingwa tiegħek.

620
00:28:59,490 --> 00:29:03,510
>> Ruby huwa super accessible-- Naħseb
lingwa ħafna aħjar minn PHP.

621
00:29:03,510 --> 00:29:06,250
Imma dak li tip ta 'preferenza personali.

622
00:29:06,250 --> 00:29:09,360
Kif ukoll, konsiderazzjoni oħra hija
il-komunità wara l-qafas

623
00:29:09,360 --> 00:29:11,570
li qed jaħdmu ma '.

624
00:29:11,570 --> 00:29:13,840
>> Dritt issa Ruby fuq binarji hija verament sħuna.

625
00:29:13,840 --> 00:29:16,160
Hemm tunnellata ta 'appoġġ warajh.

626
00:29:16,160 --> 00:29:19,180
Inti post xi ħaġa fuq munzell
Overflow dwar problema int

627
00:29:19,180 --> 00:29:22,350
li fil Ruby fuq binarji,
u huwa wieġeb.

628
00:29:22,350 --> 00:29:26,900
Għal darb'oħra, huwa sors miftuħ, li jfisser
li huwa kontinwament qed jinbidlu.

629
00:29:26,900 --> 00:29:28,910
Hemm tunnellata ta 'nies
li huma verament dedikati

630
00:29:28,910 --> 00:29:32,370
sabiex jagħmlu dan
qafas verament tal-biża.

631
00:29:32,370 --> 00:29:34,225
Allura hu għalhekk li nixtieq
jagħżlu Ruby fuq binarji.

632
00:29:34,225 --> 00:29:35,225
GABRIEL Guimarães: Yeah.

633
00:29:35,225 --> 00:29:37,562
Jien ngħid li l-idea
lura aktar oqfsa int

634
00:29:37,562 --> 00:29:39,770
ser issir taf hemm
ħafna, simili ħafna, id-dritt?

635
00:29:39,770 --> 00:29:42,210
Allura l-Mudell View-Kontrollur,
l-fatt li l-kontrollur tagħna

636
00:29:42,210 --> 00:29:44,793
ser look like xi ħaġa
bħall this-- kull wieħed mill-funzjonijiet

637
00:29:44,793 --> 00:29:47,235
huwa bħal wieħed mill-paġni tiegħek,
u redirects inti,

638
00:29:47,235 --> 00:29:48,750
u initializes l-varjabbli.

639
00:29:48,750 --> 00:29:51,959
Li għaddej biex tkun l-istess ħaġa għall-
kull qafas li tara hemmhekk.

640
00:29:51,959 --> 00:29:53,375
U hemm għaddej li jkun il-mudell.

641
00:29:53,375 --> 00:29:55,270
U inti tista 'tagħmel Jittieħed simili, "jappartjeni."

642
00:29:55,270 --> 00:29:59,830
Allura minflok tagħmel l-verżjoni SQL,
inti biss, bħal, do, user.tweets,

643
00:29:59,830 --> 00:30:01,210
u inti tikseb kollox.

644
00:30:01,210 --> 00:30:02,650
Kulħadd għandu dak.

645
00:30:02,650 --> 00:30:07,070
Ħlief fil Ruby, inti tagħmel user.tweets,
u mbagħad xi oqfsa fir PHP,

646
00:30:07,070 --> 00:30:12,010
inti tagħmel user.getalltweets
FEJN PHP tiegħi mhix problema.

647
00:30:12,010 --> 00:30:13,460
Bħal, huwa linja big.

648
00:30:13,460 --> 00:30:15,320
Huwa l-istess ħaġa,
imma hija linja kbir.

649
00:30:15,320 --> 00:30:19,350
>> Allura li kienet waħda mir-raġunijiet ewlenin
ta 'preferenzi tiegħi fuq Ruby.

650
00:30:19,350 --> 00:30:22,290
Huwa biss nagħmel eżattament l-
istess ħaġa fil oqfsa oħra,

651
00:30:22,290 --> 00:30:26,021
hija biss tieħu me darbtejn
linji kif twal ta 'kodiċi.

652
00:30:26,021 --> 00:30:26,520
OK?

653
00:30:26,520 --> 00:30:29,730

654
00:30:29,730 --> 00:30:32,540
>> Kwalunkwe mistoqsijiet oħra?

655
00:30:32,540 --> 00:30:35,200
>> Zack CHAUVIN: Haga
I ser insemmi quickly-- Gabe

656
00:30:35,200 --> 00:30:36,682
tkellmu ftit dwar ħaġar prezzjuż.

657
00:30:36,682 --> 00:30:39,890
U li verament great-- I mean, dan
huwa tip ta komuni għall-oqfsa kollha,

658
00:30:39,890 --> 00:30:45,170
li hemm it-tip ta 'kunċett gem,
li huwa simili fl-eżempju tiegħi ftit,

659
00:30:45,170 --> 00:30:46,680
Għandi login.

660
00:30:46,680 --> 00:30:48,460
Bħal, inti tista 'tiffirma, jiffirmaw out.

661
00:30:48,460 --> 00:30:51,740
Bħal, li attwalment
tip ta 'proċess kumpless.

662
00:30:51,740 --> 00:30:55,950
Hija ġiet trattata ftit
bit għalik fil PSET 7.

663
00:30:55,950 --> 00:31:01,160
Imma I għadhom ma jafux bis-sħiħ kif
biex jimplimentaw-sinjal in, sinjal-out.

664
00:31:01,160 --> 00:31:03,740
U dan għaliex
Ruby fuq binarji għandha tunnellata

665
00:31:03,740 --> 00:31:06,080
ta 'ħaġar prezzjuż li jagħmlu għalf bħal dik għalik.

666
00:31:06,080 --> 00:31:08,550
>> Għal darb'oħra, konvenzjoni fuq il-konfigurazzjoni.

667
00:31:08,550 --> 00:31:11,050
Kulħadd għaddej biex tkun tagħmel
dan sinjal in, sign out pass.

668
00:31:11,050 --> 00:31:14,450
Allura għaliex mhux biss tagħmel pakkett, imsejħa
Ifasslu f'dan il-każ, li hu ġawhra.

669
00:31:14,450 --> 00:31:15,810
Inti biss jinkludiha.

670
00:31:15,810 --> 00:31:18,970
U allura hemm xi għajnuna
online ma kif jużah.

671
00:31:18,970 --> 00:31:21,230
U inti ma għandekx għalfejn tinkwieta
dwar xi ħaġa bħal dik.

672
00:31:21,230 --> 00:31:24,060
>> Twaħħal stampi għal dawn
things-- ġawhra għal dan.

673
00:31:24,060 --> 00:31:27,220
Bħal, ghaċ inti qed tipprova tagħmel
xi ħaġa ġdida, hemm gem għal dan.

674
00:31:27,220 --> 00:31:29,420
U inti tip ta 'ftit
biċċa flimkien dawn ħaġar prezzjuż

675
00:31:29,420 --> 00:31:33,160
u jibnu verament komplessi
applikazzjoni malajr ħafna.

676
00:31:33,160 --> 00:31:35,902

677
00:31:35,902 --> 00:31:37,437
Kessaħ.

678
00:31:37,437 --> 00:31:38,270
Kwalunkwe mistoqsijiet oħra?

679
00:31:38,270 --> 00:31:39,623
>> STEPHEN turban: Woo-hoo.

680
00:31:39,623 --> 00:31:40,976
I do not think [inaudible].

681
00:31:40,976 --> 00:31:41,966
>> GABRIEL Guimarães: OK.

682
00:31:41,966 --> 00:31:42,840
Grazzi tant, guys.

683
00:31:42,840 --> 00:31:43,839
>> STEPHEN turban: Buh bye.

684
00:31:43,839 --> 00:31:44,850
Zack CHAUVIN: Buh bye.

685
00:31:44,850 --> 00:31:45,849
>> STEPHEN turban: Woo-hoo.

686
00:31:45,849 --> 00:31:48,150
[Applause]

687
00:31:48,150 --> 00:31:49,700
>> Yay.

688
00:31:49,700 --> 00:31:50,955