validationについて

1. WBMJEBUJPOʹ͍ͭͯ
2. ࣗݾ঺հ w גࣜձࣾϢχίϯ
   w 5XJUUFS
   !SZPOFYU
   w ήʔϚʔ
   w ΋Μ͸Μͱ͔εϓϥτΡʔϯͱ͔
   w ;ͩΜ͸3BJMT΍ͬͯ·͢
3. ࠷ۙͷਐḿͰ͢ w ࠓճ͸ΏͬͨΓ΍ͬͯΔͷͰ·ͩ)3Ͱ͢
   w ΤϯδχΞϞϯϋϯ4MBDL্ཱͪ͛ͯΔͷͰڵຯ͋Δํ͓ ੠͕͚͍ͩ͘͞
4. ษڧձʗίϛϡχςΟ w 4IJCVZBSC
   w :PLPIBNBSC
   w ,BXBTBLJSC
   w ͋ͨΓʹࢀՃͯ͠·͢ɻ
5. ձࣾͰ΍͍ͬͯΔ͜ͱ ւ֎޲͚ήʔϜΩϡʔϨγϣϯαʔϏεͷ
   3PDL6
   .FEJBDSBGU
   IUUQTNFEJBDSBGUSPDLVBQQTDPN
   ΍
   ւ֎޲͚ήʔϜϑΥʔϥϜͷ
   3PDL6
   5BML
   IUUQTUBMLSPDLVBQQTDPN
   ͷ։ൃΛ΍͍ͬͯ·͢ɻ
6. ࠓ೔࿩͢͜ͱ w γεςϜͷͨΊͷWBMJEBUJPOʹ͍ͭͯ
   w 3BJMTͰWBMJEBUJPO͢Δ࿩
   w %#Ͱ੍໿Λ͔͚Δ࿩
   w 69ͷͨΊͷWBMJEBUJPOʹ͍ͭͯ
   w +4ͰWBMJEBUJPO͢Δ࿩
7. ίʔυʹ͍ͭͯ w ίʔυ͸ීஈࢲ͕ۀ຿Ͱ࢖͍ͬͯΔ3BJMTͰͷ࣮ ૷ྫʹͳΓ·͕͢ɺ8FCϑϨʔϜϫʔΫશൠʹ ͍ͭͯಉ͜͡ͱ͕ݴ͑ΔΜ͡Όͳ͍͔ͳ͊ͱࢥ ͍·͢
8. WBMJEBUJPO͠·͠ΐ͏
9. Ϣʔβ໊ͷཁ݅͸͜ΕͰ w ௕͞
   จࣈ·Ͱ
   w ඞਢ
10. 3BJMTͩͱ class User < ActiveRecord::Base validates :name, length: { maximum: 20 }, presence: true end
11. ͜͏ͳΔ
12. ؆୯ʂ
13. ͱ͜Ζ͕
14. 3BJMTͷWBMJEBUJPO͸ΞϓϦϨΠϠʔͰ
    ݕূՄೳͳϝιουͷ৔߹ʹͷΈ
    ݕূ͢Δ͚ͩͳͷͰ
15. ௚઀Ϩίʔυʹ*OTFSU w */4&35
    JOUP
    VTFST
    TFU
    OBNF
    
    B@OBNF@UIBU@JT@PWFS@UIBO@@DIBSBDUFST
16. WBMJEBUJPO͕૸Βͳ͍ϝιου Λ࢖͏ VTFSVQEBUF@DPMVNO OBNF
    MPOH@OBNF@UIBU@PWFS@UIBO@UXFOUZ@DIBSBDUFST VTFSTBWF WBMJEBUF
    GBMTF
17. ͷΑ͏ͳૢ࡞Ͱɺ؆୯ʹ WBMJEBUJPOҧ൓ͷσʔλ͕࡞ΕΔ
18. ͦͯ͜͠ΕΛը໘͔Β
    ૢ࡞͠Α͏ͱ͢Δͱ w ࠓճͷૢ࡞Ͱ໊લΛมߋ͍ͯ͠ͳ͍ʹ΋͔͔Θ Βͣɺ໊લͰΤϥʔʹͳΔ มߋͨ͠ͷ͸͜͜
19. ͞Βʹ
20. ύεϫʔυมߋը໘ w ଞͷઃఆը໘ͱ͸੾Γग़ͯ͠ɺύεϫʔυ͚ͩ Λมߋ͢Δը໘ͱ͍͏ͭ͘Γ͸Α͋͘Δͱࢥ͍ ·͢
21. ύεϫʔυΛมߋ͢Δը໘ͳͷʹɺ ໊લ͕௕ͯ͘ΤϥʔͱݴΘΕΔ w ΋ͪΖΜɺ͜ͷը໘Ͱ໊લΛม͑Δ͜ͱ͸Ͱ͖ͳ͍
    w Ϣʔβ͸Ͳ͏͠Α͏΋ͳ͍
22. ͕ͨͬͯ͠ w 8FCΞϓϦϨΠϠʔͰͷ੍໿͚ͩͰ͸ͳ͘ɺ͖ͬ ͪΓͱ%#Ͱͷ੍໿ΛೖΕ·͠ΐ͏
23. class CreateUsers < ActiveRecord::Migration def change create_table :users do |t| t.string :name, limit: 20, null: false t.string :password t.timestamps null: false end end end %#ʹMJNJUͱOPU
    OVMM੍໿Λֻ͚ Δʢ3BJMTͷNJHSBUJPOͰ΍Δྫʣ
24. Μɺ͡Ό͋%#ͷ੍໿͚ͩష͓͚ͬͯ͹ɺ 3BJMTͷWBMJEBUJPOཁΒͳ͍Μ͡ΌͶʁ
25. ͱ͍͏Θ͚Ͱ΍ͬͯΈΔͱ
26. WBMJEBUJPOΤϥʔ͕ฦ͍ͬͯͨ ՕॴͰΤϥʔʹ
27. ͡Ό͋͜ͷ%#ͷΤϥʔΛྫ֎DBUDIͯ͠ɺ
    ద੾ͳΤϥʔϝοηʔδΛฦ͢Α͏ʹ
    ͯ͠΍Ε͹ɾɾɾ
28. ͦΕɺ3BJMTͷWBMJEBUJPOͷ
    ํָ͕͡ΌͶ
29. ͱ͍͏Θ͚Ͱ w %#ͷ੍໿͸γεςϜΛकΔͨΊʹઈରʹֻ͚· ͠ΐ͏ɻ͕͜͜ΞϓϦϨΠϠʔͰͷWBMJEBUJPOΑ ΓΏΔ͍ͱ͍͏͜ͱ͕͋ͬͯ͸͍͚ͳ͍ɻ
    w ΞϓϦϨΠϠʔͰ΋ɺແବͳΫΤϦൃߦΛ͠ͳ ͍ʗΤϥʔॲཧΛద੾ʹ͢ΔͨΊʹWBMJEBUJPOΛ ΍Δ͜ͱΛڧ͘ਪ঑͠·͢ɻ
30. ΊͰͨ͠ΊͰͨ͠
31. Ͱ͸ͳ͍ʂ
32. ͜͜·Ͱ w γεςϜͷͨΊͷWBMJEBUJPOͷ࿩
33. ͔͜͜Β w 69ͷͨΊͷWBMJEBUJPOͷ࿩
34. 69ͷͨΊͷWBMJEBUJPOͱ͸ʁ w Α͋͘ΔϢʔβొ࿥ϑΥʔϜ
35. Ϣʔβ*%ΛೖΕͯΈΔ w ొ࿥ϘλϯΛԡ͢ͱ͢Ͱʹ࢖ΘΕ͍ͯ·͢ɺͱΤ ϥʔ͕ฦͬͯ͘Δ
36. ผͷ*%Λࢼ͢ w ·ౖͨΒΕΔ
37. ͞Βʹผͷ*%Λࢼ͢ w ·ͨ·ͨΤϥʔʹͳΔ
38. Ϣʔβʔ͸ౖͬͯ
    ཭୤ͯ͠͠·͏
39. Ͳ͏͢Ε͹͍͍ͷ͔ʁ w ೖྗ͢Δ
    
    Ϙλϯԡ͢
    
    Τϥʔ͕ฦͬͯ͘ Δɺͱ͍͏Ұ࿈ͷྲྀΕΛ܁Γฦ͢ͷ͸ۤ௧
    w ೖྗͨ࣌͠఺Ͱɺͦͷೖྗ͕ड͚ೖΕՄೳ͔Ͳ ͏͔ΛΘ͔ΔΑ͏ʹ͢Δ΂͖
40. Ϣʔβ͕ೖྗΛऴ͑ͨλΠϛϯάͰϑΟʔυόοΫ μϝͳ৔߹͸ͦ΋ͦ΋ԡͤͳ͘͢Δ
41. ੒ޭ͢Δ৔߹΋ڭ͑ͯ͋͛Δ
42. w %#Ͱ๷͙ͷ͸γεςϜͷͨΊͷWBMJEBUJPO
    w Ϣʔβʹշదʹೖྗͯ͠΋Β͏ͨΊͷɺ69ͷͨ ΊͷWBMJEBUJPO͕ඞཁ
43. Ͳ͏࣮ݱ͢Δ͔ʁ w ઌఔͷྫ͸ɺ%#಺ͰͷॏෳνΣοΫ͕ඞཁͳͷ Ͱ+BWBTDSJQU
    
    "1*ͷ࿈ܞ͕ඞཁͳέʔεɻ ͪΐͬͱ΍΍͍͜͠ͷͰ͋ͱͰɻ
    w ·ͣ͸ɺ'PSN͚ͩͰ൑அͰ͖Δɺʮඞਢೖྗʯ ʮ௕੍͞ݶʯʮϑΥʔϚοτνΣοΫʯʹ͍ͭ ͯ࿩͠·͢ɻ
44. 'PSNͰ൑அ͢ΔWBMJEBUJPO w ྫ͑͹ɺ)5.-ʹ͸SFRVJSFEଐੑ΍FNBJMଐੑ ͳͲ͕͋Δ
    w ೖྗඞਢ߲໨ʹೖྗ͍ͯ͠ͳ͔ͬͨΓɺࢦఆͷ ϑΥʔϚοτʹͳ͍ͬͯͳ͔ͬͨΒϒϥ΢βϨ ϕϧͰΤϥʔΛฦͯ͘͠ΕΔ
    w ·͋ศར
45. <input placeholder="Username" required type="text" name="account[username]" id="account_username" />
46. ͱ͜Ζ͕ w ಈ͔ͳ͍ϒϥ΢β͕
47. w ΋͋Δ͚Ͳɺͦ͏͍͏Ϩϕϧͷ࿩Ͱ͸ͳ͘
    w *&͸ࢮΜͩʂ΋͏͍ͳ͍ʂ ΍͋
48. 4BGBSJ w ಈ͔ͳ͍
    w ࠷৽ͷ.BD
    04
    J04Ͱಈ͔ͳ͍
    w ͜ΕͰಈ͔ͳ͍Ҏ্ɺීٴ཰Λߟ͑ΔͱཔΕͳ ͍ͱߟ͑Δ΂͖
49. +BWBTDSJQUͰ΍Δ w K2VFSZͳΒ͍͔ͭ͘ϓϥάΠϯ͕͋Δ
    w 7VF
    3FBDU
    "OHVMBS౳ͷϑϨʔϜϫʔΫΛ࢖༻ ͍ͯ͠ΔͳΒɺͦ͜Ͱͷྲّྀʹै͏ͱ࣮૷ָ͕ ͳ͸ͣ
50. ௨৴͕ඞཁͳ΍ͭ͸ɺ
    ೖྗͷλΠϛϯάͰ௨৴ͯ݁͠ՌΛग़ͯ͠΍Δ
51. ͜͏͍͏Πϝʔδ 'PSN Ϣʔβ +BWBTDSJQU "1* %# 
    ೖྗ 
    มߋΛݕ஌ 
    ೖྗ಺༰ΛૹΔ 
    %#ʹ໰͍߹Θͤ 
    0,/( 
    0,/( 
    0,ʗ/(
52. +4͔ΒݺͿ
    ʢલεϥΠυ
    
    ͷεςοϓ 4 $ -> 5 $("#username").keyup(-> 6 $.get( 7 "/accounts/exists", 8 { username: $('#username').val() }, 9 (data) -> 10 if data.result 11 $("#account-result").html("<div class='glyphicon glyphicon-remove text-danger'>͜ͷϢʔβ໊͸࢖ΘΕ͍ͯ·͢</div>") 12 $("#submit-button").prop("disabled", true) 13 else 14 $("#account-result").html("<div class='glyphicon glyphicon-ok text-success'>͜ͷϢʔβ໊͸࢖༻ՄೳͰ͢</div>") 15 $("#submit-button").prop("disabled", false) 16 ) 17 ) 18 w $P⒎FF4DSJQUͰ͢
    w ࣮ࡍʹLFZVQͰ΍Δͱ௨৴ස౓ଟ͗͢ΔͷͰEFCPVDF͢ΔQMVHJOͳͲ࢖͍·͠ΐ͏
    w ྫ͸K2VFSZͰ͕͢ɺԿΒ͔ͷϑϨʔϜϫʔΫΛ࢖͏ͷ΋ΦεεϝͰ͢
53. ֬ೝ༻"1*࡞Δ
    ʢdͷεςοϓ Rails.application.routes.draw do resources :accounts do collection do get "exists", to: "accounts#exist" end end end class AccountsController < ApplicationController def exist if Account.exists?(username: params[:username]) render json: { result: true }.to_json else render json: { result: false }.to_json end end end
54. ͜͜Ͱ w +4ͷWBMJEBUJPO͚ͩ΍͓͚ͬͯ͹ɺ%#ͷ੍໿ཁ Βͳ͍Μ͡Όͳ͍ʁ
55. Μͳͨ͜ʔͳ͍ w +4͸ඇରԠϒϥ΢βʗΦϑʹ͢Δʗ௚઀1045 ͷ63-Λୟ͘౳ɺճආ༨༟
56. w +4ͱ%#͚ͩ΍͓͚ͬͯ͹3BJMTͷ΍ͭ͸͍Βͳ ͍Μ͡Όͳ͍ʁ
57. ͋·ΓΑ͘ͳ͍ w +4ճආ͢ΔΑ͏ͳΞΫηεʹରͯ͠ɺ3BJMTͰద ੾ͳWBMJEBUJPOͰΤϥʔϝοηʔδΛฦͯ͠΍Δ ඞཁͳ͍
    
    ·͋Θ͔Δ
    w %#ʹରͯ͠ແବͳ௨৴ʗΫΤϦ͕ൃߦ͞ΕΔՄ ೳੑ͕͋Δ
    
    Α͘ͳ͍
58. ͞Βʹ w "1*Խ΋͢ΔͷͰ͋Ε͹ɺ3BJMTͷNPEFMʹΑΔ WBMJEBUJPO͕๷͙ՕॴͱͳΔ
    w େͨ͠खؒͰ͸ͳ͍ͷͰɺNPEFMͰͷWBMJEBUJPO ΋΍͓ͬͯ͘΄͏͕ྑ͍ɻ
59. 8FCΞϓϦͰ͸ͳ͘εϚϗͷ ৔߹͸ʁ w "1*αʔόཱͯͯɺεϚϗ͔Β"1*Λୟ͘΍ͭ
60. 69ͷͨΊͷWBMJEBUJPO͸
    ΫϥΠΞϯτଆͰ w +4ͷ࣌ͱಉ͡Α͏ʹɺۃྗແବͳ௨৴Λൃੜ͞ ͤͣʹɺϢʔβͷೖྗʹରͯ͠ૉૣ͘ϑΟʔυόο ΫΛฦ͢
61. αʔόଆ w %#ଆ͸ݴ͏·Ͱ΋ͳ͘ඞཁ
    w ΫϥΠΞϯτ͕όά͍ͬͯΔՄೳੑ΋͋ΔͷͰɺ 8FCΞϓϦͷNPEFM૚ͰͷWBMJEBUJPO΋ඞཁɻ
62. ·ͱΊ w ࠷ޙඌ %# Ͱෆਖ਼ͳ஋͸ઈର๷ޚ͢Δ
    
    γες ϜͷͨΊͷWBMJEBUJPO
    w ࠷લྻ +4
    ΫϥΠΞϯτΞϓϦ Ͱਖ਼ৗೖྗͷͨ ΊͷಋઢΛ࡞ͬͯ͋͛Δ
    
    69ͷͨΊͷ WBMJEBUJPO
63. ͝੩ௌ͋Γ͕ͱ͏
    ͍͟͝·ͨ͠