The three great virtues are important

銀座Rails #39 招待講演
https://ginza-rails.connpass.com/event/229348/

Transcript

1. ,PJDIJ
   *50
   
   &4.
   *OD ۜ࠲3BJMT 
   'SJ ʮಈ͍ͨʂʯͷઌ΁౿Έग़͢ɺ
   γεςϜͷϝϯςφϏϦςΟ޲্ͷ
   جૅٕज़ The three great virtues are important
2. @koic w044ϓϩάϥϚʔ
   w3VCP$PQίΞνʔϜ
   wגࣜձࣾӬ࿨γεςϜϚωδϝϯτ
   &4.
   JOD
   ΤϯδχΞϦϯάϚωʔδϟʔ
   
   σΟεςΟϯάΠογϡυΤϯδχΞ
   w3BJMT
   Ͱͷؔ৺ࣄ͸&4.
   JNQPSUNBQͱͦͷಈ͖
3. ৿͞Μ͔ΒͷΦϑΝʔ IUUQTUXJUUFSDPNNPSJNPSJIPHFTUBUVT
4. w ޮ཰΍࠶ར༻ੑ͕ؾʹͳΔΑ͏ʹͳͬͨʁ
   w ॲཧޮ཰΍
   %FW9
   ͕ؾʹֻ͔͍ͬͯΔʁ
   w ίʔυ΍γεςϜͷΫΦϦςΟʹ͍ͭͯͷ ࣗෛ͕ߴ·͖͍ͬͯͯΔʁ ೥ܦͬͨΒͲΜͳঢ়ଶ🤔
5. w ʮଵଦ
   ୹ؾ
   ၗຫʯͷࡾେඒಙΛ֫ಘͭ͠ ͭ͋Δͱ͍͏Ծઆ
   w ϓϩάϥϚʔͱͯ͠ݱ࣮ੈքͷҰһ΁
   w Α͏ͦ͜
   ͓ΊͰͱ͏͍͟͝·͢ʂ ࡾେඒಙͷಓ
   ର৅૚޿Ί ࢲͨͪ͸ϓϩάϥϚʔͷҒେͳࡾͭͷඒಙͰ͋Δ
   ଵଦɺ୹ؾɺၗຫ
   Λ਎ʹ͚ͭΔ͜ͱΛਪ঑͢Δ
6. w *UFSBUJWF
   w *ODSFNFOUBM
   w %FWFMPQNFOU ೥ܦͯ͹Կճճ͍ͯ͠Δʁ IUUQTKBXJLJQFEJBPSHXJLJ൓෮ܕ։ൃ
7. ࠓճ͸։࠵೥Λܴ͑Δۜ࠲3BJMTʹ޲͚ͨʮΤϯδχΞ ೖ໳͔Β౿Έग़ͨ͠ઌʯ͕ςʔϚͰ͢ɻ੒ޭ͍ͯ͠Δ αʔϏε΄Ͳ௕णͰ͋ΓɺංେԽ͢Δίʔυϕʔε΋Ζ ΋Ζ΁ͷඋ͕͑ॏཁʹͳΓ·͢ɻͦͯ͠ϓϩμΫτͷϝ ϯςφϏϦςΟ޲্ͱɺΤϯδχΞͱͯ͠ಇ͘Α͏ʹ ͳ͔ͬͯΒͷϨϕϧΞοϓ͸ंͷ྆ྠͰ͢ɻຊߨԋͰ͸ ೖ໳ͷઌͱͳΔɺγεςϜϝϯςφϏϦςΟ޲্΁ͷ཈ ͓͑ͯ͘΂͖εΩϧɺߟ͑ํʹ͍͓ͭͯ࿩͠·͢ɻ ຊ೔ͷ֓ཁ
8. ۪ऀ͸ܦݧʹֶͼɺ
   ݡऀ͸ྺ࢙ʹֶͿ IUUQTUXJUUFSDPNNPSJNPSJIPHFTUBUVT
9. म͟͞Ε͹ɺݱΕͣ ืूத ຊฤͷ಺༰Λ࣮ફͰ਎ʹ͚͍ͭͨͳΒ lத్৽ଔ࠾༻z
   lϏδωεύʔτφʔz !LPJD·Ͱ͓ؾܰʹ
11. w ͓ۚ
    Ϗδωε
    ͷ੾Ε໨͕αʔϏεͷ੾Ε໨
    w ௕णαʔϏεʹͳΕ͹ͳΔ΄Ͳίʔυϕʔε͸ංେԽ ͢Δݱ࣮
    w ߦҎ্ͷίʔυʹ͸όά͕͋Δ
    🤔
    w ͋ͳͨͷαʔϏε͸Կ೥΋ͷʁ
    w զʑϓϩάϥϚʔ͸ɺ೗Կʹͯ͠ϏδωεͷมԽʹద ԠͰ͖ΔγεςϜϝϯςφϏϦςΟΛඋ͑Δ͔ʁ ੒ޭ͍ͯ͠ΔαʔϏε΄Ͳ௕ण
12. w " ೥຤ͷౙٳΈʹۓٸো֐͕ൃੜ͠ɺਅ໷தʹ
    ̍ϝιου̎̌̌̌ߦͷ$PEFͷղಡʹ಄Λ௧Ί ʮͻΌ͸ʔʂ͜Ε͸ͻͲ͍ɺ$PEFͩͥʂʯͱ ࢥͬͨॠؒ
    w # ࣗ෼ΑΓͰ͖Δౕ͕ॻ͍ͨίʔυΛಡΜͰ ʮ͋ʂ͜Μͳهड़Ͱ͖ΔΜͩɻ͜ΓΌ$PPMͩͥʯ ͱࢥͬͨॠؒ ͋ͳͨͳΒͲͪΒΛબͿʁ IUUQQBUUFSOTIBSVIFSPLVDPN
    EFBE
    MJOL
13. جૅͱͦͷઌ ʹ͋Δ΋ͷ
14. w ໊લ
    w ྺ࢙
    w ઃܭ
    w ੑೳ
    w ճؼ ࡾେඒಙΛ࣋ͬͯࠞಱΛ੍ޚ͢Δ w ௥੻
    w ධՁ
    w อ࣋
    w ڞ૑
    w ײ৘ ͜ͷ͋ͨΓΛԡ͓͑ͯ͘͞ͱྑ͍Ͱ͠ΐ͏ͱ͍͏
    ϙΠϯτΛຊ೔ͷ͓୊ͱ͖ͯ࣋ͬͯ͠·ͨ͠
15. σβΠϯελϛφԾઆ ྦྷੵͨ͠
    ػೳͷྔ ࣌ؒ ͙͢Εͨઃܭ ·͍ͣઃܭ ϦϑΝΫλϦϯά
    ୈ൛
    .BSUJO
    'PXMFS
    ΑΓ
16. ໊લ
17. ΋ͷʹ͸ɺ͢΂໊ͯલ͕͋Δ ੩తղੳͱ͸ͭ·Γιʔείʔυͷ
    ղੳͩɻͦͯ͠ιʔείʔυͷղੳͱ ͸໊લͷௐࠪͰ͋ΔɻϑΝΠϧ໊ɾ
    ؔ਺໊ɾม਺໊ɾܕ໊ɾϝϯό໊ͳͲɺ
    ϓϩάϥϜ͸໊લͷ͔ͨ·Γͩɻ 3VCZιʔείʔυ׬શղઆ
    ੨໦ๆ࿠
18. w ϓϩάϥϚʔΛԿ೥΍͍ͬͯͯ΋೉͍͠
    w 3VCZຊମͰ΋Ϟδϡʔϧ΍ϝιουͷ
    ໊લ͕ܾ·Βͣೖ͍ͬͯͳ͍΋ͷ΋͋Δ
    w γεςϜ಺෦ͷ
    QVCMJD
    "1*
    ͸ͦΕͳΓʹɺ
    γεςϜ֎෦ͱͷ࿈ܞͱͳΔ
    QVCMJTIFE
    "1*
    ͸ͱΓΘ͚৻ॏʹʮܾஅʯ͠Α͏ ໊෇͚͸೉͍͠
19. w ͻͱͭ֓೦ʹ͍ͭͯෳ਺ͷ໊લ͚ͭͳ͍
    w ͻͱͭͷ໊લͰෳ਺ͷ֓೦Λද͞ͳ͍
    w ͻͱͭͷ֓೦Λද͢;ͨͭͷ໊শͩͱࢥͬͯ ͍ͨΒҟͳΔ֓೦ͩͬͨ͜ͱ͕͋Γઃܭ΁ͷ Өڹࣄྫ΋͋ͬͨͷͰɺυϝΠϯͷཧղॏཁ
    w HSFQͰͷώοτ཰͕ߴ·Γ௥੻֬౓্͕͕Δ ໊෇͚Λ౷Ұ͢Δ
20. w 5IPSͷΦϓγϣϯఏڙͰoption: gen ΑΓoption: generateͷํ͕໌֬
    w άϩʔόϧઃఆ͍͏എܠͰSettings.dest
    ΑΓ
    Settings.destination_server
    ͷํ͕໌֬
    w গͳ͍λΠϓ਺Ͱॻ͘ΑΓ΋ɺಡΈखΛ૝૾͢Δ
    w ·ͨ৘ใ๛͔ͳΧϥϑϧͳ໊લΛݕ౼͢Δ جຊ͸ུ͞ͳ͍ํ͕৘ใམͪ͠ͳ͍
21. ໊લॏཁ IUUQTNBHB[JOFSVCZJTUOFUBSUJDMFT)PUMJOLTIUNM
22. ྺ࢙
23. 13΍Πγϡʔ͸ॏཁͳ৘ใࢿݯ
24. IUUQTDISJTCFBNTJPQPTUTHJUDPNNJU ίϛοτϝοηʔδ
26. w ॻ͖खΑΓಡΈखͷํ͕ଟ͍ͷͰಡΈखୈҰ
    w ຊจʹαϚϦΛॻ͖ɺ ಛʹ֎෦΁ͷ
    63-
    ͸ৄࡉࢀরͱ͍͏࢖͍ํ͕͓͢͢Ί
    w 63-͸ύʔϚϦϯΫͩͱݴΘΕ͍ͯͨͳʁ͋ Ε͸ӕͩ
    w ྫ͑͹௕೥ͷӡ༻Ͱ*54͕มΘΔ͜ͱ͕͋Δ ຊจ΁ͷ63-هड़ͷΈΛଟ༻͠ͳ͍
27. w γΣϧͷੈքͰgit logͯ͠શମཤྺ͔Β
    มߋ࣌ظΛݕग़ͯ͠ɺͦͷ··มߋҙਤΛ
    ಡΊΔͱศར
    w গ͠࡞ۀखॱΛม͑Δ͚ͩͰɺྺ࢙ΛḷΔ
    ํ๏ͷଟ༷ੑΛ࡞ΕΔ
    w (JU)VC͕མ͍ͪͯͯ΋खݩͰḷΕΔ😇 13ͷEFTDʹςΩετ͞Ε͍ͯΕ͹ྑ͍ʁຊ౰ʁ
28. w 1VMM
    3FRVFTUʹॻ͘͜ͱΛ͋Β͔͡Ίίϛοτϝο ηʔδʹه͢
    w ʮίϛοτˠ13࣌ʹॻ͘ʯͰ͸ͳ͘ʮίϛοτ࣌ ʹॻ͘ˠ13
    ͸੔ܗ͘Β͍ʯ
    w Ͳ͏ͤॻ͘ͳΒϒϥ΢βͰ͸ͳ͘޷͖ͳΤσΟλͰ
    w NBTUFS
    NBJO
    ΁
    QVTI
    ͢Δͱ͖ͱྲྀΕΛม͑ͳ͍ ίϛοτϝοηʔδΛΤσΟλͰॻ͘
29. 
    HJU
    DPNNJU࣌ʹΤσΟλฤू͢Δ
30. 
    13࣌ʹλΠτϧຊจ͕ຒ·ͬͯΔ
31. มߋҙਤͰTRVBTIΛ͢Δ΂͖͔ʁ ϦϑΝΫλϦϯά͸৽ػೳͷ௥ Ճͱີ઀ʹ݁ͼ෇͍͓ͯΓɺΘ ͟Θ͟෼཭͢ΔͨΊʹ࣌ؒΛׂ ͘ͷ͸ແବͩͱࢥ͍·͢ɻ ϦϑΝΫλϦϯά
    ୈ൛
    .BSUJO
    'PXMFS
32. SBJMTSBJMT *NQSPWF
    "DUJPO
    $BCMF
    SFDPOOFDUJPO
    SFMJBCJMJUZ
34. 独⽴してリバートできる独⽴した変更単位にしておく
35. pick, squash, or another PR? ࣮૷աఔͰͷςετ௥Ճɺ όάϑΟοΫε΍খ͞ͳϦ ϑΝΫλϦϯάͰ͔͢ʁ TRVBTI QJDL ϦϦʔεࠩ͠໭͠ͷͱ͖ ͳͲಠཱͯ͠Ϧόʔτ͠ ͍ͨίϛοτͰ͔͢ʁ "OPUIFS
    13 ͻͱͭͷϒϥϯνʹͻ ͱͭͷίϛοτ͚ͩͰ ͔͢ʁ ػೳͷ௥Ճมߋͱ෼཭ Ͱ͖Δطଘػೳ΁ͷϦ ϑΝΫλϦϯάͰ͔͢ʁ ΋͠ϨϏϡʔͰͷࢦఠͰͳ ࣗ͘ྗͰؾ͍͍ͮͯͨΒ ίϛοτΛ෼͚·͔͢ʁ ͻͱͭͷPRʹෳ਺ͷػ ೳཁٻʹର͢Δมߋ͕ ࠞ͟Γ·͔͢ʁ No Yes Yes No Yes No Yes Yes No Yes No No Start ಠཱͯ͠ϚʔδͰ͖Δ
36. w l༗ӹͳ৘ใ͸͢΂ͯه͢z
    CZ
    ZZBHJ
    w lͳͥͦͷ13ΛϚʔδ͢Δඞཁ͕͋Δͷ͔ Λॻ͘z
    CZ
    LBNJQP
    w l$PTNFUJD
    DIBOHFͰ͸͋͑ͯ͋·Γॻ͔ ͳ͍
    ࣭ྔͷରൺ
    z
    CZ
    BNBUTVEB 3BJMTίϛολʔ͔ΒֶΜͩݪଇ
37. ߟ࡯ʹ͍ͭͯͷଓ͖͸ͪ͜Β IUUQTTQFBLFSEFDLDPNLPJD DPNNJUNFTTBHFXJMMOFWFSEJF IUUQTTQFBLFSEFDLDPNLPJD UEEXJUIHJUMPOHMJWFFOHJOFFSJOH ίϛοτϝοηʔδʹ͍ͭͯ ίϛοτཻ౓ʹ͍ͭͯ
38. ࢥ͍ͬͯΔΑΓ΋ɺ ίϛοτཤྺ͸
    ͣͬͱͣͬͱ༗༻ɻ IUUQTUXJUUFSDPNNPSJNPSJIPHFTUBUVT
39. ઃܭ
41. w ࢲͷܦݧ্ɺͲ͜ʹԿ͕ॻ͍ͯ͋Δͷ͔೺Ѳ͢ Δͷʹɺಈ͘ιʔείʔυ͕࠷΋ਖ਼֬Ͱ͋Δ
    w ͳΜͱόά·Ͱॻ͔Ε͍ͯΔʂʂʁ😇
    
    w υΩϡϝϯτΛ㚽Ζʹ͍ͯ͠ΔΘ͚Ͱ͸ͳ͘ɺ 8SJUF
    POMZ΍தؒ੒Ռ෺Ͱͳ͍ϝϯςφϯε͞ Εͨཧղิॿ΁ͷܰྔͳυΩϡϝϯτ͸༗༻ ઃܭͱ࣮૷͸ෆՄ෼
42. w ϞδϡʔϧԽ͕͏·͘͞Ε͍ͯΕ͹ɺมߋ ͢ΔͨΊʹཧղ͢ΔՕॴ੍͕ݶ͞ΕΔ
    w ໾ׂ͕γϯϓϧͰ͋Ε͹ɺίʔυϕʔε΋ ཈͑ΒΕͯγϯϓϧʹͳΔ
    w ґଘ͕গͳ͚Ε͹ςετ༰қੑ͕ߴ·Γɺ ݁Ռͱͯ͠࠶ར༻ੑ͠΍͍͢ ιʔείʔυʹઃܭ͸͍॓ͬͯΔ
43. ྫ͑͹'BUίϯτϩʔϥʔΛආ͚Δ &⒎PSU
    UP
    &OIBODF $PNQMFY
    PG
    %PNBJO
    -PHJD 5BCMF
    .PEVMF %PNBJO
    .PEFM ʰ1BUUFSOT
    PG
    &OUFSQSJTF
    "QQMJDBUJPO
    "SDIJUFDUVSFʱ
    .BSUJO
    'PXMFS
    ΑΓ 5SBOTBDUJPO
    4DSJQU
44. w ઃܭऀͱ࣮૷ऀ͕෼ۀʹͳ͍ͬͯΔ࣌୅Ͱ ͸ͳ͍
    w ʮݟੵΓ͸։ൃऀͷ੹຿ʯͰ͋Δ
    w νʔϜ։ൃͰݟੵΓΛߦ͍ͬͯΔ৔߹ɺԿ ΛͲͷΑ͏ʹ࣮૷͢Δ͔ઃܭʹ౿ΈࠐΜͩ ࿩Λ͢Δ͜ͱͰݟੵΓ֬౓্͕͕Δ ݟੵΓ͸ઃܭߦҝ
45. w ੈͷதʹ͸ແݶͷίʔυ͕͋Γɺ͍·ॻ͍ͯ ͍ΔਓͱಡΜͩ͜ͱͷ͋Δਓͷ೴಺ʹ࢒ͬͯ ͍ΔίʔυҎ֎͸஌Βͳ͍ίʔυ
    w ৽͘͠ϓϩδΣΫτϝϯόʔΛܴ͑ͨ࣌ͳͲ
    ʮಡΜͩ͜ͱͷͳ͍ίʔυʯΛ೗Կʹ
    ʮಡΈղ͖΍͍͢ঢ়ଶʯʹ͓͚ͯ͠Δ͔ ࡞ͬͨ΋ͷ͸୭͔ʹͱͬͯ஌Βͳ͍ίʔυ
46. w ·ͣιʔείʔυ͸࠷ॏཁͷ্ɺɺɺ
    w ΦϯϘʔσΟϯάͰશମ૾Λ௫ΊΔΑ͏ͳΞʔ ΩςΫνϟਤ
    w ࣗಈԽ͞Ε͍ͯͳ͍ӡ༻खॱ
    w 044΋ؔΘΔਓ͕େ͖͘ͳΔ΄Ͳɺ3&"%.&
    ͔ΒઌͷυΩϡϝϯτͷ༗༻ੑ͕ߴ·Δ ิॿυΩϡϝϯτͷՁ஋
47. ੑೳ
48. w αΠτΛ๚Εͯඵ଴ͨ͞ΕͨΒ௚ؼ཰͕ ૿͑Δͱ͍͏ݱ࣮
    w ࣗ෼͕Ϣʔβʔͱͯ͠࢖ͬͯݟͨΒͲ͏ײ ͡Δ͔ʁ
    Ϣʔβʔࢹ఺ʹཱͬͯΈΑ͏
    w ίϯτϩʔϥʔɺϏϡʔͰॏ͍ॲཧΛͯ͠ ͸͍͚ͳ͍ 8FCͷجຊ
49. w ສ݅ͷϨίʔυΛ࣋ͭςʔϒϧ΁ͷݕࡧΛ Ͳ͏ଊ͑Δ͔ʁ
    σʔλྔͷܯࠂͷ೏͍
    w ඞཁͰ͋Ε͹ॏ͍ΫΤϦʹͳΒͳ͍ཁ݅ʹௐ੔ ͢Δ
    ࣄલʹݕࡧൣғΛߜΕΔΑ͏ʹ͢Δͱ͔
    w .2
    FH
    424
    ͳͲͷதؒ૚ʹΑΔඇಉظʹ ͯ͠όονॲཧΛߦ͏ͳͲΛݕ౼͢Δ ಉظॲཧͱඇಉظॲཧ
50. w αʔϏε͸ΞϓϦέʔγϣϯͱΠϯϑϥ͕Ұମʹ ͳͬͯಈ͘
    w ϒϥ΢βɺ$%/ɺ8FCαʔόʔɺΞϓϦέʔγϣϯ αʔόʔɺσʔλϕʔεͷલஈͷํͰॲཧΛฦͤ ͹ɺͦΕ͚ͩεϧʔϓοτ্͕͕Γશମͷෛՙ͕ݮΔ
    w ӬଓσʔλΛ࣋ͭσʔλϕʔεΑΓӬଓσʔλΛ࣋ ͨͳ͍8FCͷํ͕εέʔϧΞ΢τ͠΍͍͢ ࣗ਎ͷΠϯϑϥߏ੒Λ஌Δ
51. w ଠฏ༸ͷ޲͜͏ଆʹϦιʔεΛऔΓʹ͍ͬ ͯॏ͍ͱ͔൵͍͠ͷͰɺϦʔδϣϯΛҙࣝ ͠Α͏
    w ॏ͍
    9.-
    σʔλΛ
    )551
    ͷϦΫΤε τɺϨεϙϯεͷಉظ଴ͪΛͯ͠
    )FSPLV
    λΠϜΞ΢τΤϥʔ Կ౓΋ଠฏ༸Λԣஅ͢Δͳ
53. w ಈ͘ίʔυ͸ඞཁ৚݅Ͱ͋Γे෼৚݅Ͱ͸ͳ͍
    w αοͱಈ͘ίʔυ·Ͱ͍࣋ͬͯ͘ͷ͸3BJMTͷ Ғେ͕ͩ͞ɺΠϯσοΫε΍/ ͳͲͷߟྀ࿙ Ε΍ɺͦ΋ͦ΋ίϯτϩʔϥʔͰॏ͍ಉظॲཧ Λ͠ͳ͍ͱ͍͏جૅॏཁ
    w Πϯϑϥߏ੒ͱεέʔϧํ๏Λ஌͓ͬͯ͘ ඵ଴ͬͨΒ஗͍8FCͷੈք
54. ճؼ
55. w ςετ͕ͳ͍ίʔυ͸ϨΨγʔίʔυ
    CZ
    ʰϨΨγʔίʔυվળΨΠυʱ
    w ςετίʔυ͕ͳ͍044͸৴པͰ͖Δ͔ʁ
    CZ
    UXBEB
    
    w ςετίʔυ͕ͳ͍Ҋ݅͸
    ུ
    
    CZ
    ฐࣾγεςϜϚωδϝϯτ ࣗಈԽ͞Εͨςετ͕౰ͨΓલͷ࣌୅
56. w ϓϩμΫτ΁ͷςετίʔυ͸౰ͨΓલͷ࣌୅
    w ͞Βʹఆܗ࡞ۀɺӡ༻ϛε΁ͷରࡦɺίʔυϨ ϏϡʔͷࢦఠͳͲɺςετίʔυʹམͱ͠ࠐΉ
    w ಉ͡஄ؙʹ౰ͨΒͳ͍Α͏ʹ͢Δ
    w 3VCP$PQͰ͸TQFDQSPKFDU@TQFDSCΛ༻ҙ͠ ͓ͯΓɺ࣮Ҋ݅ʹ΋ྲྀ༻Ͱ͖Δߟ͑ํ ϓϩδΣΫτΛςετ͢Δ
57. w ςετίʔυͱͦͷ࣮ߦ࣌ؒ͸ΞϓϦέʔ γϣϯͷ௥Ճͱͱ΋ʹྦྷੵ͞Εଓ͚Δ
    w ςετ࣮ߦ͸ͨͩͰ͸ͳ͘ɺςετ͕ॏ ͳ͍ͬͯ͘ͱෆ҆ఆͳςετɺεϩʔςε τͱ͍͏໰୊ͱ௚໘͍ͯ͘͠ ࣗಈςετͷ࣮ߦίετ
58. w ࠷଎ղܾ͸Ϛγϯࢿݯ΁ͷۚͷ஄ؙ
    ۚ
    w ߴ଎Խͷجຊ͸ฒྻԽͱݸผνϡʔχϯά
    w rspec -p
    --profile
    ͳͲͰϓϩϑΝ ΠϦϯάΛͱΓɺ஗͍ςετ͔ΒςίೖΕ
    ΦϦίϯνϟʔτతͳ εϩʔςετܐࣄ
    σΧ
59. w %#ͷΫϦʔχϯάઓུͰ෼͕෼ʹͳͬͨࣄ ͋Γ
    w %BUBCBTF$MFBOFSͰ͋Ε͹ DatabaseCleaner.strategyΛtruncation
    deletion
    truncationͲΕ͕࠷ద͔ܭଌ͢Δ
    w BNBUTVEBEBUBCBTF@SFXJOEFSΛݕ౼͢Δ %#ͷΫϦʔχϯάઓུ
60. w ྫ͑͹ඵ͔͔Δεϩʔςετ͕ݸ
    ͋ΔͱɺͦΕ͚ͩͰ෼͔͔Δ
    w ͭ·Γ௚ྻͩͱ೔Ͱͷ$*ͷ্ݶ͸ճҎ ԼʹͳΔ
    w ੒௕͢ΔγεςϜ͸ਓ͕૿͑ɺ13͕૿͑ͯ ͍͘ͷͰ$*αʔϏεͷ੔ཧ͸վΊͯॏཁ ೔͸ ඵ
61. ௥੻
62. w γεςϜ΁ͷมߋʹର͢Δ௥੻༰қੑ
    w γεςϜτϥϯβΫγϣϯͷ௥੻༰қੑ ຊઅͰऔΓѻ͏௥੻
63. w ໰୊ྖҬͷੈք؍ΛγεςϜʹ൓өͤ͞Δ
    w ྑ໊͍෇͚͸γεςϜղੳ
    ͋Δ͍͸Ϗδωε ͷٯղੳ
    ΁ͷ࠷ߴͷख͕͔Γ
    ຊ೔౓໨
    w ଧͪ߹ΘͤͰ఻͑ΒΕͨγεςϜ΁ͷมߋཁ ݅Λɺ͍͔ʹޮ཰తʹḷΔ͜ͱ͕Ͱ͖Δ͔ʁ FH
    ͦΕͬΆ͍༻ޠΛ
    HSFQ
    ͢Δ ໊લʹΑΔτϨʔαϏϦςΟ
64. w ҙຯͱͯ͠ॏෳ͍ͯͨ͠ίʔυͷҰ෦ͷର Ԡ࿙ΕʹΑΓΠϯγσϯτ͕ൃੜͨ͠਺Λ ͍֮͑ͯ·͔͢ʁ
    w ͻͱͭͷมߋཁٻʹରͯ͠ɺมߋՕॴ͕গ ͳ͚Ε͹গͳ͍΄ͲଛইᎭ࠲཰Λ཈͑ΒΕ Δ %POU
    3FQFBU
    :PVSTFMG
65. w ͱΓ͋͑ͣίϐϖͰ࡞͓͍ͬͯͯɺ͋ͱͰϦ ϑΝΫλϦϯά͢Ε͹ྑ͍ͩΖ͏
    👿
    w NBTUFS
    NBJO
    ʹϚʔδ͞ΕͨΒɺ
    ϝϯςφϯε͞Εͦ͏ʹͳ͍ͩΖ͏
    👼
    w ͍·͸ٸ͍Ͱ͍Δ͔ΒɺͤΊͯίϝϯτΛॻ ͖࢒ͯ͠ޙͰ෼͔ΔΑ͏ʹ͓ͯ͜͠͏
    👶 ఱ࢖ͱѱຐͷڱؒͷχϯήϯ
66. w ίʔυͰදݱͰ͖ͳ͍ϙΠϯτ͸ίϝϯτΛ࢒͢
    w ಛʹʮԿͷͨΊͷίʔυʯ͔هड़͕ඞཁͩͱײͨ͡ ΒιʔείʔυίϝϯτΛ੯͠·ͳ͍
    w Ϧʔμϒϧίʔυ͸શষͷ͏ͪষΛίϝϯτʹ අ΍͍ͯ͠Δ
    ॏཁ͞۩߹ʂ
    w 50%0΍'*9.&Λॻ͘ͱ
    bin/rails notes
    Ͱ΋ ݟ͔ͭΔ ιʔείʔυίϝϯτ
67. w ྫ֎ϋϯυϦϯά΍γεςϜڥքʹϩάΛ࢓ࠐ Ήͱ͍͏ͷ͸ϩΪϯάͷఆੴ
    w *%Λݩʹϩά͔Β%#ͷؔ࿈΍ϓϩάϥϜͷಈ͖ Λḷͬͯཉ͍͠৘ใ͕ݟ͔ͭΕ͹ྑ͍͚ΕͲ
    w ΄͍͠ϩά͸͍͍ͨͯϩά͞Ε͍ͯͳ͍໰୊
    CZ
    NJXB ໰͍߹Θͤௐࠪɺো֐ௐࠪ IUUQTUXJUUFSDPNNJXBTUBUVT
68. w ໰୊͕ى͖ͨ࣌ɺ·ͣ৘ใΛूΊΔϩάΛ࢓ ࠐΜΉ͜ͱ͔Βελʔτͱ͍͏͜ͱ΋͋Δ
    w ͦ΋ͦ΋໰୊͕ى͖ΔՕॴ͕෼͔͍ͬͯΕ ͹ɺ໰୊Λ༧ظͯ͠ରԠ͓͚ͯ͠Δ
    w ઃܭ
    ϦϑΝΫλϦϯά
    ͱಉ͘͡ɺϩΪϯά ʹ͍ͭͯ΋໰୊ʹԠͯ͡վળΛ͍͚ͯ͠Δ΋ͷ :"(/*
    %3:
    ౓໨ͷ๏ଇ
69. ධՁ
70. ඞཁͳ΋ͷ͔Βॱ൪ʹ IUUQTXXXNPVOUBJOHPBUTPGUXBSFDPNCMPHBSFPGGFBUVSFTSFBMMZSBSFMZPSOFWFSVTFE
71. wʷʮ଎͍ʯͱ͔ʮ͍҆ʯͱ͔ʜ
    w˓ʮܧଓʯతʹʮՁ஋ʯΛಧ͚Δ ΞδϟΠϧιϑτ΢ΣΞ։ൃ QJWPU QJWPU
    JGͷੈք QJWPU ܁Γฦ͞Εͨ બ୒͕൓ө͞ ΕͨγεςϜ
    ౰ͨΓ͚ͩ Ͱͳ͘ϋζϨ ΋ؚ·ΕΔ σʔλʹج͖ͮબ୒ͱҙࢥܾఆΛߦ͏
72. IUUQBHJMFFTNDPKQQJWPUBMUSBDLFSIFMQHFUUJOHTUBSUFE@KB ཉ͍͠ংྻ͸ೖΕସΘΔ
73. w ,(*Λୡ੒͢ΔͨΊͷ,1*޲্Λૂͬͨࢪࡦػ ೳͰ͋Ε͹ɺׂΓͱܭଌΛηοτͰߟ͑ΒΕΔ
    w ͏·͘ߦ͔ͳ͚Ε͹ࠩ͠໭͍͔ͨ͠΋͠Εͳ͍
    w ϞχλϦϯάج൫ʹର͢Δཁ݅༗ແΛ֬ೝͯ͠ ͓͘ͱྑ͍
    ݟੵΓ͕ඞཁͳͱ͖͸͓๨Εͳ͘ ʮ͜͏͍ͬͨػೳ͕ཉ͍͠ʯͷཪଆΛ஌Δ
74. w શ෦࡞ͬͯΈΑ͏΍ɺͱΓ͋͑ͣ࡞ͬͯΈ Α͏ͱ͍͏΋ͷ͸ɺٙͬͯΈΔͱྑ͍
    w ։ൃϦιʔε͸༗ݶͰ͋ΓɺՁ஋ͷߴ͍
    ػೳʹߜͬͨϝϯςφϯεΛ໨ࢦ͢
    w ػೳͷ଍͠ࢉ͚ͩͰ͸ͳ͘ɺͱ͖ʹ͸ෆཁ ͳػೳͷҾ͖ࢉΛߟ͑ͯΈΔ ࣮૷͕ͳ͚Ε͹੍໿͸ݮΔ
75. อ࣋
76. w ௕णαʔϏεʹͳΕ͹ͳΔ΄ͲϨίʔυྔ͸ӈݞ্ ͕ΓͰ૿Ճ͢Δ
    w Ϩίʔυͷ૿Ճʹ൐͍ɺεϩʔΫΤϦʹసͯ͡͠· ͏͜ͱ͕͋Δ
    w ඇ߃ٱอ͔࣋߃ٱอ͔࣋͸σʔλઃܭͷ伴ʹͳΔ
    w Ӭଓ͢΂͖σʔλ͔ɺফڈՄೳͳσʔλ͔ʁফڈ͢ ΂͖σʔλ͔ʁ
    ୀձऀσʔλͳͲ σʔλͷϥΠϑαΠΫϧ
77. w *OEFY
    4IPUHVOͰෆཁͳΠϯσοΫεΛ
    ݕग़ͯ͠࡟আ͢Δ
    ߋ৽ܥͷ଎౓վળʹܨ͕Δ
    
    FH
    HJUIVCDPNTVFJOEFY@TIPUHVO
    w "3
    TFTTJPO
    TUPSFΛ࢖͍ͬͯΔΑ͏ͳ৔߹ TFTTJPOTϨίʔυΛΫϦʔχϯά͠ͳ͍ͱΰϛ σʔλ͕݁ߏͳσΟεΫྔΛ઎Ί͍ͯΔ͔΋
    bin/rails db:sessions:trim
    Λ๨Εͣʹ σʔλΫϦʔχϯά
78. w ࡟আͰ͖Δσʔλ͕͋Ε͹ɺ࡟আ͢Δ͜ͱͰσʔλྔ
    ݕࡧ ྔ
    ΛݮΒ͢
    w ݕࡧର৅ͷ೔෇ΛߜΔ͜ͱͰɺݕࡧྔΛݮΒͤΔΑ͏Ͱ͋Ε ͹ɺཁ݅ௐ੔ΛࢼΈΔ
    w ཁ݅ʹΑͬͯϦΞϧλΠϜੑ͕ඞཁͳ͚Ε͹ɺूܭࡁΈͷ
    αϚϦʔςʔϒϧΛ༻ҙ͢Δ
    w ͦ΋ͦ΋ͷ42-ʹ໰୊͕͋Ε͹վળɺຊ࣭తʹ42-͕దͯ͠ ͍ͳͦ͞͏Ͱ͋Ε͹ɺ3%#Ҏ֎ͷΠϯϑϥཁ݅Λݕ౼͢Δ σʔλ૿ՃʹΑΔεϩʔΫΤϦ
79. w 3%#.4ʹର͢ΔධՁϞχλϦϯά͕ඞཁͳ৔߹ ͸ɺϦʔυϨϓϦΧΛ༻ҙ͓ͯ͘͠ͳͲݕ౼ͯ͠ ͓͘ͱྑ͍
    w ΦϯϥΠϯͰܨ͕͍ͬͯΔຊ൪σʔλʹॏ͍ूܭ 42-Λൃߦ͢ΔͱɺϢʔβʔӨڹͰ൵͍͜͠ͱʹ ͳΓ͔Ͷͳ͍
    w ਨ௚෼ׂʹͳΔͱ%#σʔλઃܭ͕ඞཁ
    ׂѪ ෳ਺σʔλϕʔε
    ϨϓϦΧηοτ
80. w ςʔϒϧϨίʔυෳ਺ͷσʔλϕʔεʹ෼ࢄ͢Δख๏
    w ςʔϒϧؒͷ
    JOIN
    ͕೉͘͠ͳΓɺσʔλΛϦϯΫ͢Δͨ ΊͷઃܭɺϝϯςφϯείετΛֻ͚Δ΄ͲͷεέʔϥϏ ϦςΟ֬อ͕ຊ౰ʹඞཁͳ΋ͷ͔Αۛ͘ຯͨ͠ํ͕ྑ͍
    w ʰෳ਺%#
    $BTVBM
    5BMLTʱͰΑ͘ฉ͍ͨ͜ͱ͸ʮෳ਺%#͢ Δͳʯͩͬͨɻ୯Ұ%#Ͱ͸࢖Θͳ͍೴ྗ͕ٻΊΒΕΔ
    w ηΩϡϦςΟ্ͷཧ༝Ͱ%#Λ෼͚ͳ͚Ε͹ͳΒͳ͍ͱ͍͏ ࿩͸େมͦ͏ͩͬͨ ෳ਺σʔλϕʔε
    γϟʔσΟϯά
81. w σʔλϕʔεઃܭ͸ɺ&3%ͷεΩʔϚઃܭ Ҏ֎ʹͲͷΑ͏ͳσʔλ͕ͲΕ͘Β͍૿෼ ͦ͠͏͔σʔλઃܭͱݟཱͯʹ͍ͭͯϓϥ χϯά͓ͯ͘͠ͱྑ͍
    w ϩʔΧϧͷগྔσʔλͱຊ൪؀ڥͰ૿෼͠ ͍ͯ͘σʔλͷҧ͍Λ಄ͷཪʹඳ͍͓ͯ͘ εΩʔϚઃܭॏཁɺσʔλઃܭ΋ॏཁ
82. ڞ૑
83. 3BJMT͸όʔδϣϯ্͕͕ ΔͱɺผͷϑϨʔϜϫʔΫ ʹͳͬͯେม पลͷਓʑ͕มΘΔΘ͚ Ͱ͸ͳ͍ͷͰਓ୳͔͠Β ΍Βͳͯ͘͢Ή !LPJD RVFTUJPOFS 3VCZ
    #VTJOFTT
    6TFST
    $POG
    ʹͯ
84. w 3BJMT͸୯ͳΔϑϨʔϜϫʔΫͱ͍͏͚ͩͰ ͸ͳ͘ɺͦΕΛத৺ͱͨ͠ίϛϡχςΟͰ ͋Δ
    w ن໿ʹଇ࣮ͬͨ૷Λ͢Δ͜ͱͰɺ৽͘͠ϓ ϩδΣΫτʹೖΔ࣌ɺܴ͑Δ࣌ɺϨʔϧͰ ܨ͕ͬͨͱײ͡ΒΕΔੈքʹ͚ۙͮΒΕΔ 3BJMTͱ͍͏ڞ௨ج൫
85. IUUQKQSVCZJTUOFU3VCZ,BJHJ DQMVHJOQMVHJOBUUBDI@EPXOMPBEQ1SPHSBNpMF@OBNFUIF@JTMBOE@PG@SVCZ@KQEG 3VCZ,BJHJ
     %BWF
    5IPNBT
86. l IUUQTXXXBUNBSLJUDPKQOFXTSBJMTIUNM There are few Japanese contributors of Rails in 2009 IUUQTUXJUUFSDPNZBIPOEBTUBUVT ˠ ೔ຊͷ3BJMT͸࢒೦ɻ೔ຊ Ͱ3BJMT͕࢖ΘΕͯͳ͍ͱ ͍͏͜ͱ͸ͳ͍ͱࢥ͏͕ɺ ͦΕʹͯ͠͸։ൃऀ͕গͳ ͍ɻࢲ͕ݟͨͱ͜Ζ ਓதͰ೔ຊਓΒ͖͠ਓ͸਺ ਓɻ
87. w ۙॴʹ͍Δਓͷ(FNΛ࢖͑ͷ๏ଇ
    w ࠔͬͨͱ͖։ൃऀʹ஍ҬίϛϡχςΟͳͲͰ௚ ઀࿩ͤΔ͔΋
    w ໰୊ΛΑΓ؅ཧ͠΍͘͢ͳΔ
    w ͲΜͳਓ͕࡞ͬͨ(FN͔
    ΫηͳͲ΋
    ෼͔Δ
    w 3BJMTपลͷਓ͕पΓʹ૿͑Δޮೳ 044͸ਓ͕࡞͍ͬͯΔ
88. 044ίϛϡχςΟͱͷڞੜΛࢧԉ
89. େ͖ͳࡿΛ޿͛Δ υΩϡϝϯτͷεϖϧϛεͷमਖ਼Λ࢝Ίͨྡͷ ਓ͕ɺ࣍ͷૉ੖Β͍͠ػೳΛ࣮૷͢Δ͜ͱʹͳ Δ͔Ͳ͏͔͸୭ʹ΋Θ͔Γ·ͤΜɻ͔͠͠ɺ͋ ͳ͕ͨඍসΜͰɺͲΜͳখ͞ͳߩݙʹ΋ײँΛ ࣔ͢͜ͱͰɺϞνϕʔγϣϯΛߴΊͤ͞ɺͦͷ Մೳੑ΋ੜ·ΕΔ͔΋͠Ε·ͤΜɻ 5IF
    3BJMT
    %PDUSJOF ೔ຊޠ༁ IUUQTRJJUBDPNUBLBIBTIJNJUFNTE⒎FFDCEBD&""&%&""&&&#"&&#QVTIVQBCJHUFOU
90. w ୭͔ʹͱͬͯ໾ʹཱͭͷ͸ίʔυͱ͸ݶΒ ͳ͍
    w ͳΜΒ͔ͷϥΠϒϥϦͷ૊Έ߹ΘͤͰ౿Μ ͩόάͷϨϙʔτ΍ɺϫʔΫΞϥ΢ϯυͷ ղܾࡦͰ΋هࣄΛॻ͍͓͚ͯ͹ɺಉ͡໰୊ ʹૺ۰ͨ͠ਓͷݕࡧώοτͰ໾ཱ͔ͭ΋ όουϊ΢ϋ΢ͷڞ༗
91. ୭͔ʹͱͬͯͷ໰୊͸
    ࣗ෼ʹͱͬͯͷ໰୊͔΋ ͠Εͣɺͦͷٯ΋વΓ զʑ͸ϨʔϧͰܨ͕͍ͬͯΔ
92. ײ৘
93. w ະિ༗ͷΤϯδχΞืू࣌୅
    w ϏδωεΛ੒ཱͤ͞ΔϓϩμΫτ͸ॏཁͩ ͕ɺϓϩμΫτΛϝϯςφϯεͰ͖Δ։ൃ ऀ͕͍ͳ͍ͱαʔϏεΛҡ࣋੒௕Ͱ͖ͳ͍
    w ָ͘͠ͳ͍ϨΨγʔٕज़͚ͩͩͱɺ޷ح৺ Ԣ੝ͳ։ൃऀͷؔ৺Λอͭͷ͸೉͍͠ ։ൃऀͷ৺ٕମͷόϥϯεऔΓ
94. w ʮΊΜͲ͏ͩͳʯͱ͍͏ײ৘ࣗମ͸ॏཁ
    w γεςϜͷ։ൃ͚ͩͰ͸ͳ͘ɺϓϩδΣΫτࣗମͷ ࣗಈԽΛ͢Δ
    w $*΍-JOUFSͱ͍͏πʔϧʹݶΒͣɺఆܕ࡞ۀʹͳΓ ͦ͏ͳ΋ͷ͸ɺΤϯδχΞϦϯάͰղܾͰ͖ͳ͍͔ ݕ౼ͯ͠ΈΔ
    w ࣌ʹ͸ଵଦʹͳΔͨΊʹ੯͠·ͳ͍ F9USFNF
    -B[JOFTT
95. w ϩʔϯνޙ೥Λܴ͑ΔαʔϏε͕͋Δ
    3BJMT
    
    
    3VCZ
    
    ͔
    3BJMT
    
    
    3VCZ
    
    ͷͲͪΒ͕γϡοͱ ϝϯςφϯε͞Εͯͯɺָͦ͠͏ʁ
    w OQN؅ཧ͞Ε͓ͯΒͣɺ&4Ҏ߱ͷߏจ͕࢖͑ͳ͍
    ϨΨγʔϑϩϯτΤϯυΞϓϦʹະདྷΛݟΕͦ͏ʁ
    w ҰํͰ໨ͷલͷ໰୊Λɺ஍ٿ্Ͱ࠷΋্खʹղܾͰ ͖Δͷ͸ࣗ෼ͨͪͰ͠ΐ͏
    खΛಈ͔͔͢Ͳ͏͔ 6QHSBEF
    NVTU
    HP
    PO
96. ϓϩμΫτͷϝϯςφϏϦ ςΟ޲্ͱɺΤϯδχΞͱ ͯ͠ಇ͘Α͏ʹͳ͔ͬͯΒ ͷϨϕϧΞοϓ͸ंͷ྆ྠ
97. w 3BJMTΞϓϦέʔγϣϯͷηΩϡϦςΟΞοϓ σʔτΛͰ͖Δঢ়ଶͮ͘Γ͸γεςϜͷ݈߁ Λҡ࣋͢ΔॏཁͳϑΝΫλʔ
    w ΞϓϦέʔγϣϯߏஙٕज़ͷϞμϯԽ͸ɺγ εςϜʹؔΘΔ։ൃऀͷΩϟϦΞͷ݈߁Λҡ ࣋͢ΔॏཁͳϑΝΫλʔ
    ৺ͷ݈߁ʹܨ͕Δ ϞμϯԽͷॏཁੑ
98. ࣗΒͷٕज़ʹؔ৺Λ࣋ͭ͜ͱ
    ͋ͳͨͷ࢓ࣄʹ͍ͭͯߟ͑Δ͜ͱʂ ܅͸ֶͿ͜ͱ͕৺͔Β޷͖ͩ
    ܅͸ιϑτ΢ΣΞͷ͜ͱΛେ੾ʹࢥ͍ͬͯΔ ΞδϟΠϧαϜϥΠ +POBUIBO
    3BTNVTTPO ୡਓϓϩάϥϚʔ %BWJE
    5IPNBT
    "OESFX
    )VOU ָ͠͞ʹ͸ϏδωεՁ஋͕͋Δ
99. म͟͞Ε͹ɺݱΕͣ ืूத ຊฤͷ಺༰ΛҰॹʹղܾ͍ͯ͜͠͏ͱ͍͏ lத్৽ଔ࠾༻z
    lϏδωεύʔτφʔz ຊؾͰͨͷΉR
100. !LBLVUBOJ
     TBZT ΅͘͸ΤΫετϦʔϜϓϩάϥϛϯάਥͳͷͰɺ
     ༏लͳϓϩάϥϚʔΛ૿΍͍ͨ͠ͱࢥ͍ͬͯ·͢
     IUUQTTQFBLFSEFDLDPNLBLVUBOJLBJHJPOSBJMT TMJEF