Ruby on Rails講義 第18回, 第19回 Rails基礎

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Transcript

1. 3VCZ
   PO
   3BJMT
   ߨٛ ୈճ
   ୈճ
   3BJMTجૅ ,VOJBLJ
   *("3"4)*JHBJHB 
   
   BU
   Ұڮେֶ ࣾձՊֶʹ͓͚Δ৘ใٕज़ͱίϯςϯπ࡞੒*7 χϑςΟגࣜձࣾدෟߨٛ
2. χϑςΟגࣜձࣾ ఏڙ
3. ߨࢣ
   ޒेཛྷ๜໌ גࣜձࣾສ༿ɹΤϯδχΞ
4. ࿈བྷ ݄೔ͷߨٛ͸ٳߨͰ͢ɻ
5. ͓Έ͘͡ΞϓϦ IUUQXXXqJDLSDPNQIPUPTQPVDIJO
6. ͓Έ͘͡ΞϓϦ׬੒༧૝Πϝʔδ
7. ͓Έ͘͡ΞϓϦͭ͘Γ खॱ 
   3VCZͰ͓Έ͘͡ΫϥεΛ࡞Δ 
   3BJMTͰΞϓϦΛ࡞Δ 
   ΞϓϦʹ͓Έ͘͡ΫϥεΛ૊ΈࠐΉ
8. ͓Έ͘͡ΞϓϦͭ͘Γ खॱ 
   3VCZͰ͓Έ͘͡ΫϥεΛ࡞Δ 
   3BJMTͰΞϓϦΛ࡞Δ 
   ΞϓϦʹ͓Έ͘͡ΫϥεΛ૊ΈࠐΉ
9. 3VCZͰ͓Έ͘͡ΫϥεΛ࡞Δ ཁ݅
   ˞
   ཁ݅ຬͨ͢΂͖৚݅
10. 3VCZͰ࡞Δ͓Έ͘͡Ϋϥεཁ݅ 
    ͓Έ͘͡ɺϥοΩʔΧϥʔɺ ϥοΩʔͳํ֯ΛऔಘՄೳɻ಺༰͸ҎԼɻ ͓Έ͘͡ େ٢
    
    ٢
    
    த٢
    
    খ٢
    
    ڟ ϥοΩʔΧϥʔ ੺
    
    ੨
    
    ԫ
    
    ྘ ϥοΩʔͳํ֯ ౦
    
    ੢
    
    ೆ
    
    ๺
11. 3VCZͰ࡞Δ͓Έ͘͡Ϋϥεཁ݅ 
    ͓Έ͘͡͸ϥϯμϜͰ݁Ռ͕มΘΔΑ͏ ʹ͍ͯͩ͘͠͞ɻ ຖճಉ݁͡ՌʹͳΒͳ͍Α͏ʹͯͩ͘͠͞ ͍ɻ
12. 3VCZͰ࡞Δ͓Έ͘͡Ϋϥεཁ݅ 
    JSCͰ࣍ͷΑ͏ʹ࣮ߦ͢Δͱɺ಺༰ͷೖ ͓ͬͨΈ͘͡ͷ݁Ռ͕ʮ͓Έ͘͡ΦϒδΣ Ϋτʯͱͯ͠औಘͰ͖ΔΑ͏ʹ͠·͢ɻ ͭ·ΓɺPNJLVKJSCΛ࡞ͬͯͦͷதʹ
    0NJLVKJ
    ΫϥεΛ࣮૷͠·͢ɻ SFRVJSF
    PNJLVKJ PNJLVKJ
    
    0NJLVKJOFX
13. 3VCZͰ࡞Δ͓Έ͘͡Ϋϥεཁ݅ ʮ͓Έ͘͡ΦϒδΣΫτʯ͔Β͸ ࣍ͷΑ͏ʹͯ͠಺༰ΛࢀরͰ͖ΔΑ͏ʹ͠·͢ɻ PNJLVKJ
    
    0NJLVKJOFX PNJLVKJOBNF
    
    
    େ٢ PNJLVKJMVDLZ@DPMPS
    
    
    ੨ PNJLVKJMVDLZ@EJSFDUJPO
    
    
    ೆ
14. ԋशɿ3VCZͰ࡞Δ͓Έ͘͡Ϋϥε ώϯτ ཚ਺ΛಘΔʹ͸
    SBOE
    Λ࢖͍·͢ɻͨͱ͑͹
    SBOE 
    ͸
    
    ʙ
    
    ͷͲΕ͔Λฦ͠·͢ɻ ΫϥεOFXͨ͠ͱ͖ʹ͸ɺJOJUJBMJ[F
    ϝιο υ͕ݺ͹Ε·͢ɻ 3VCZͷจ๏͸ߨٛࢿྉୈճɺ·ͨ͸ʮͨͷ ͍͠3VCZʯɺωοτΛࢀরͯ͠Έ͍ͯͩ͘͞ɻ IUUQTHJUIVCDPNIJUPUTVCBTIJSVCZMFDUVSF લड़ͷཁ݅Ͱ࣮૷͍ͯͩ͘͠͞ɻ
15. 3VCZͰ࡞Δ͓Έ͘͡Ϋϥεಈ࡞֬ೝ ҎԼͷΑ͏ʹಈ͚͹0,Ͱ͢ɻJSCͰ࣮ߦͯ͠Έͯ ͍ͩ͘͞ɻ 
    SFRVJSF
    PNJLVKJ 
    PNJLVKJ
    
    0NJLVKJOFX 
    PNJLVKJOBNF
    
    
    େ٢ 
    PNJLVKJMVDLZ@DPMPS
    
    
    ੨ 
    PNJLVKJMVDLZ@EJSFDUJPO
    
    
    ೆ 
    JSC
16. ղ౴ྫΛ࣍ͷϖʔδʹॻ͍͍ͯ·͢ɻ
17. 
    DPEJOH
    VUG DMBTT
    0NJLVKJ
    
    BUUS@SFBEFS
    OBNF
    MVDLZ@DPMPS
    MVDLZ@EJSFDUJPO
    
    EFG
    JOJUJBMJ[F
    
    
    
    !OBNF
    
    <େ٢ ٢ த٢ খ٢ ڟ><SBOE  >
    
    
    
    !MVDLZ@DPMPS
    
    <੺ ੨ ԫ ྘><SBOE  >
    
    
    
    !MVDLZ@EJSFDUJPO
    
    <౦
    ੢
    ೆ
    ๺><SBOE  >
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    FOE FOE ԋशɿ3VCZͰ࡞Δ͓Έ͘͡Ϋϥε ղ౴ྫ PNJLVKJSC
18. 
    DPEJOH
    VUG DMBTT
    0NJLVKJ
    
    BUUS@SFBEFS
    OBNF
    MVDLZ@DPMPS
    MVDLZ@EJSFDUJPO
    
    EFG
    JOJUJBMJ[F
    
    
    
    !OBNF
    
    <େ٢ ٢ த٢ খ٢ ڟ><SBOE  >
    
    
    
    !MVDLZ@DPMPS
    
    <੺ ੨ ԫ ྘><SBOE  >
    
    
    
    !MVDLZ@EJSFDUJPO
    
    <౦
    ੢
    ೆ
    ๺><SBOE  >
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    FOE FOE ԋशղઆɿ3VCZͰ࡞Δ͓Έ͘͡Ϋϥε 0NJLVKJOFX
    ͢Δͱ
    JOJUJBMJ[Fϝιου͕ݺ͹Εɺ !OBNF
    !MVDLZ@DPMPS
    !MVDLZ@EJSFDUJPO͕࡞ ΒΕ·͢ɻ໊લ͕!͸͡·Γͷม਺͸Πϯελϯεม਺ Ͱ͢ɻ
19. 
    DPEJOH
    VUG DMBTT
    0NJLVKJ
    
    BUUS@SFBEFS
    OBNF
    MVDLZ@DPMPS
    MVDLZ@EJSFDUJPO
    
    EFG
    JOJUJBMJ[F
    
    
    
    !OBNF
    
    <େ٢ ٢ த٢ খ٢ ڟ><SBOE  >
    
    
    
    !MVDLZ@DPMPS
    
    <੺ ੨ ԫ ྘><SBOE  >
    
    
    
    !MVDLZ@EJSFDUJPO
    
    <౦
    ੢
    ೆ
    ๺><SBOE  >
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    FOE FOE ԋशղઆɿ3VCZͰ࡞Δ͓Έ͘͡Ϋϥε !OBNF
    
    <େ٢ ٢ த٢ খ٢ ڟ><SBOE  > ͷSBOE  ͸dͷ஋ΛϥϯμϜʹฦ͠·͢ɻ
    <େ٢ ٢ த ٢ খ٢ ڟ>͸഑ྻͰ͢ɻ഑ྻ<Y>ͰY൪໨ͷཁૉΛऔΓग़ͤ· ͢ɻ͸͡·Γͳ͜ͱʹ஫ҙɻྫ͑͹
    <େ٢ ٢ த٢ খ ٢ ڟ><>͸த٢Ͱ͢ɻ
20. 
    DPEJOH
    VUG DMBTT
    0NJLVKJ
    
    BUUS@SFBEFS
    OBNF
    MVDLZ@DPMPS
    MVDLZ@EJSFDUJPO
    
    EFG
    JOJUJBMJ[F
    
    
    
    !OBNF
    
    <େ٢ ٢ த٢ খ٢ ڟ><SBOE  >
    
    
    
    !MVDLZ@DPMPS
    
    <੺ ੨ ԫ ྘><SBOE  >
    
    
    
    !MVDLZ@EJSFDUJPO
    
    <౦
    ੢
    ೆ
    ๺><SBOE  >
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    FOE FOE ԋशղઆɿ3VCZͰ࡞Δ͓Έ͘͡Ϋϥε BUUS@SFBEFS
    OBNF
    ͸
    !OBNFΛฦ͢ϝιουΛ࡞Γ·͢ɻҎԼ ͱಉ͡Ͱ͢ɻ EFG
    OBNF
    
    !OBNF FOE
21. ͓Έ͘͡ΞϓϦͭ͘Γ खॱ 
    3VCZͰ͓Έ͘͡ΫϥεΛ࡞Δ 
    3BJMTͰΞϓϦΛ࡞Δ 
    ΞϓϦʹ͓Έ͘͡ΫϥεΛ૊ΈࠐΉ 3VCZͰಈ͓͘Έ͘͡Ϋϥε͕Ͱ͖·ͨ͠ɻʋ ˜A ϊ
22. ͓Έ͘͡ΞϓϦͭ͘Γ खॱ 
    3VCZͰ͓Έ͘͡ΫϥεΛ࡞Δ 
    3BJMTͰΞϓϦΛ࡞Δ 
    ΞϓϦʹ͓Έ͘͡ΫϥεΛ૊ΈࠐΉ ͭ͗͸3BJMTͰΞϓϦΛ࡞ͬͯΈ·͠ΐ͏ɻ ͔͜͜Β͸ԋशʹ͠·͢ɻࣗ෼ͰࢿྉΛಡΈͳ͕Β ࡞ͬͯΈ͍ͯͩ͘͞ɻ
23. 
    DE
    GPSUVOFT 
    CVOEMF
    FYFD
    SBJMT
    H
    DPOUSPMMFS
    UPEBZ
    JOEFY ͓Έ͘͡ΞϓϦͭ͘Γ 
    3BJMT
    3PPU
    ΁Ҡಈͯ͠ϖʔδͷͻͳ͕ͨΛͭ͘Δ IUUQMPDBMIPTUUPEBZJOEFY 
    ϒϥ΢β͔ΒҎԼͷ63-ʹΞΫηε͢Δ ࠓ೔ͷӡ੎Λදࣔ͢ΔΞϓϦΛͭ͘Γ·͢ɻ 
    CVOEMF
    FYFD
    SBJMT
    T 
    SBJMT
    OFX
    GPSUVOFT 
    3BJMTΞϓϦΛͭ͘Δ 
    8FCαʔόΛىಈ͢Δ T
    ͸
    TFSWFS
    ͷུͰ͢ɻ
    ˞ऴྃ͸
    $USM D
    PS
    $USM 1BVTF
    ͜Μͳը໘͕ग़·͢‎
24. ͓Έ͘͡ΞϓϦͭ͘Γ खॱ 
    3VCZͰ͓Έ͘͡ΫϥεΛ࡞Δ 
    3BJMTͰΞϓϦΛ࡞Δ 
    ΞϓϦʹ͓Έ͘͡ΫϥεΛ૊ΈࠐΉ ͦͯ͠ɺ͜͜·Ͱʹ࡞ͬͨͭΛ૊Έ߹Θͤ·͢ɻ
25. 
    ࠓ೔ͷӡ੎Λදࣔͤ͞Δ PNJLVKJSC
    ΛMJC
    ͷԼʹίϐʔ͠·͢ɻ MJCPNJLVKJSC ͱ͍͏ϑΝΠϧ͕͋ΔΑ͏ʹ഑ஔ͢Ε͹0,Ͱ͢ɻ
26. IUUQMPDBMIPTUUPEBZJOEFY 
    ࠓ೔ͷӡ੎Λදࣔͤ͞Δ ͜Μͳը໘͕ग़Ε͹0,Ͱ͢ɻ‎ I)FMMPJOEFYI Q'JOE
    NF
    JO
    BQQWJFXTUPEBZJOEFYIUNMFSCQ BQQWJFXTUPEBZJOEFYIUNMFSC ͱͳ͍ͬͯΔͱ͜ΖΛҎԼͷΑ͏ʹमਖ਼͠·͢ɻ 
    SFRVJSF
    MJCPNJLVKJSC
     
    !PNJLVKJ
    
    0NJLVKJOFX
     Iࠓ೔ͷӡ੎I I
    
    !PNJLVKJOBNF
    
    I Q
    ϥοΩʔΧϥʔɿ
    !PNJLVKJMVDLZ@DPMPS
    
    Q Q
    ϥοΩʔͳํ֯ɿ
    !PNJLVKJMVDLZ@EJSFDUJPO
    
    Q ͖͞΄Ͳಉ༷ʹϒϥ΢βͰҎԼ΁ΞΫηε ࣍ʹɺ
27. ղઆɿ7JFXʹ3VCZͷίʔυΛຒΊࠐΉ 7JFXʹ3VCZͷίʔυΛຒΊࠐΉͭͷύʔπ͕͋Γ·͢ɻ 
    
    ͱ
    
    
    Ͱ͢ɻ 
    !PNJLVKJ
    
    0NJLVKJOFX
     
    
    Ͱғ·Εͨ3VCZͷίʔυΛ࣮ߦͯ͠ɺ݁ՌΛग़ྗ͠· ͢ɻද͍ࣔͨ͠ͱ͖ʹ࢖͍·͢ɻ Q
    ϥοΩʔΧϥʔɿ
    !PNJLVKJMVDLZ@DPMPS
    
    Q 
     ྫ ྫ 
    
    Ͱғ·Εͨ3VCZͷίʔυΛ࣮ߦ͠·͕͢ɺ݁ՌΛग़ྗ ͠·ͤΜɻॲཧ͚ͩΛߦ͏৔߹ʹ࢖͍·͢ɻ ʹ
    
28. 
    $POUSPMMFS΁ॲཧΛҠಈ͢Δ 7JFX͸දࣔΛ͢Δ໾ׂΛड͚࣋ͭ෦෼ͳͷͰɺදࣔ෦෼͚ͩΛ࢒ͯ͠ ॲཧ͸ίϯτϩʔϥ΁Ҡಈ͠·͢ɻ ҎԼͷϑΝΠϧΛมߋͯ͠ɺϒϥ΢β͔ΒΞΫηεͯ͠Έ͍ͯͩ͘͞ɻ BQQWJFXTUPEBZJOEFYIUNMFSC SFRVJSF
    MJCPNJLVKJSC DMBTT
    )FMMP$POUSPMMFS
    
    "QQMJDBUJPO$POUSPMMFS
    
    EFG
    JOEFY !PNJLVKJ
    
    0NJLVKJOFX
    
    FOE FOE BQQDPOUSPMMFSTUPEBZ@DPOUSPMMFSSC ˞͜ͷΑ͏ʹʮ֎͔ΒݟͨৼΔ෣͍Λม͑ͣʹίʔυ੔ཧ͢Δʯ ͜ͱΛϦϑΝΫλϦϯάͱݴ͍·͢ɻ 
    SFRVJSF
    MJCPNJLVKJSC
     
    !PNJLVKJ
    
    0NJLVKJOFX
     Iࠓ೔ͷӡ੎I I
    
    !PNJLVKJOBNF
    
    I Q
    ϥοΩʔΧϥʔɿ
    !PNJLVKJMVDLZ@DPMPS
    
    Q Q
    ϥοΩʔͳํ֯ɿ
    !PNJLVKJMVDLZ@EJSFDUJPO
    
    Q ‏͜ͷߦΛ࡟আ
29. ׬੒Ͱ͢ʂ ͓͔ͭΕ͞·Ͱͨ͠
30. ͸΍͘ऴΘͬͨਓ͸ ɾ$PEFDBEFNZ
    ͷ3VCZฤΛ΍ͬͯΈΔ $PEFDBEFNZ͸ΦϯϥΠϯֶशαΠτͰ͢ɻ ࣮ࡍʹϒϥ΢β্Ͱ࣮ߦͯ͠౴͑͋ΘͤΛͰ͖Δͷ͕ศརɻ IUUQXXXDPEFDBEFNZDPNUSBDLTSVCZ ɾϛχπΫ
    ͷ3VCZೖ໳ฤΛ΍ͬͯΈΔ ϛχπΫ͸ΦϯϥΠϯֶशαΠτͰ͢ɻ ೔ຊޠ આ໌͕ͱͯ΋ஸೡͰΘ͔Γ΍͍͢Ͱ͢ɻ IUUQXXXNJOJUVLVOFU
31. ‑໰୊จ ͜͜ʹίʔυΛॻ͘ Ͱ͖ͨΒ3VO‎ ݁Ռ͕දࣔ͞ΕΔ $PEFDBEFNZ
33. ߨٛࢿྉஔ͖৔ ߨٛࢿྉஔ͖৔Λͭ͘Γ·ͨ͠ɻ աڈͷࢿྉ͕%-Ͱ͖·͢ɻ IUUQTHJUIVCDPNIJUPUTVCBTIJSVCZMFDUVSF PS IUUQCJUMZSVCZMFDUVSF
34. ࡶஊɾ࣭໰༻GBDFCPPLάϧʔϓ GBDFCPPLάϧʔϓΛ࡞Γ·ͨ͠ IUUQTXXXGBDFCPPLDPNHSPVQTIJUPUTVCBTIJSC ɾՃೖඇՃೖ͸ࣗ༝Ͱ͢ ɾՃೖඇՃೖ͸੒੷ʹؔ܎͠·ͤΜ ɾࢀՃऀҰཡ͸ެ։͞Ε·͢ ɾॻ͖ࠐΈ͸ࢀՃऀͷΈݟ͑·͢ ɾر๬ऀ͸ΞΫηεͯ͠ࢀՃਃ੥͍ͯͩ͘͠͞ ɾࡶஊɺ࣭໰ɺٞ࿦ͳͲԿͰ΋ؾʹͤͣͲ͏ͧʙ ɾ࣭໰ʹ౴͑ΒΕΔਓ͸౴͍͑ͯ͋͛ͯͩ͘͞ ɾߨࢣਞ΋͓౴͑͠·͢ ɾೖͬͨΒܰࣗ͘ݾ঺հ͓Ͷ͕͍͠·͢