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WBMJEBUJPOʹ͍ͭͯ
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ࣗݾհ
w גࣜձࣾϢχίϯ
w 5XJUUFS!SZPOFYU
w ήʔϚʔ
w ΜΜͱ͔εϓϥτΡʔϯͱ͔
w ;ͩΜ3BJMTͬͯ·͢
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࠷ۙͷਐḿͰ͢
w ࠓճΏͬͨΓͬͯΔͷͰ·ͩ)3Ͱ͢
w ΤϯδχΞϞϯϋϯ4MBDL্ཱͪ͛ͯΔͷͰڵຯ͋Δํ͓
͕͚͍ͩ͘͞
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ษڧձʗίϛϡχςΟ
w 4IJCVZBSC
w :PLPIBNBSC
w ,BXBTBLJSC
w ͋ͨΓʹࢀՃͯ͠·͢ɻ
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ձࣾͰ͍ͬͯΔ͜ͱ
ւ֎͚ήʔϜΩϡʔϨγϣϯαʔϏεͷ
3PDL6.FEJBDSBGU IUUQTNFEJBDSBGUSPDLVBQQTDPN
ւ֎͚ήʔϜϑΥʔϥϜͷ
3PDL65BML IUUQTUBMLSPDLVBQQTDPN
ͷ։ൃΛ͍ͬͯ·͢ɻ
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ࠓ͢͜ͱ
w γεςϜͷͨΊͷWBMJEBUJPOʹ͍ͭͯ
w 3BJMTͰWBMJEBUJPO͢Δ
w %#Ͱ੍Λ͔͚Δ
w 69ͷͨΊͷWBMJEBUJPOʹ͍ͭͯ
w +4ͰWBMJEBUJPO͢Δ
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ίʔυʹ͍ͭͯ
w ίʔυීஈࢲ͕ۀͰ͍ͬͯΔ3BJMTͰͷ࣮
ྫʹͳΓ·͕͢ɺ8FCϑϨʔϜϫʔΫશൠʹ
͍ͭͯಉ͜͡ͱ͕ݴ͑ΔΜ͡Όͳ͍͔ͳ͊ͱࢥ
͍·͢
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WBMJEBUJPO͠·͠ΐ͏
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Ϣʔβ໊ͷཁ݅͜ΕͰ
w ͞จࣈ·Ͱ
w ඞਢ
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3BJMTͩͱ
class User < ActiveRecord::Base
validates :name, length: { maximum: 20 }, presence: true
end
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͜͏ͳΔ
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؆୯ʂ
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ͱ͜Ζ͕
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3BJMTͷWBMJEBUJPOΞϓϦϨΠϠʔͰ
ݕূՄೳͳϝιουͷ߹ʹͷΈ
ݕূ͢Δ͚ͩͳͷͰ
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Ϩίʔυʹ*OTFSU
w */4&35JOUPVTFSTTFUOBNF
B@OBNF@UIBU@JT@PWFS@UIBO@@DIBSBDUFST
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WBMJEBUJPO͕Βͳ͍ϝιου
Λ͏
VTFSVQEBUF@DPMVNO OBNF
MPOH@OBNF@UIBU@PWFS@UIBO@UXFOUZ@DIBSBDUFST
VTFSTBWF WBMJEBUFGBMTF
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ͷΑ͏ͳૢ࡞Ͱɺ؆୯ʹ
WBMJEBUJPOҧͷσʔλ͕࡞ΕΔ
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ͦͯ͜͠ΕΛը໘͔Β
ૢ࡞͠Α͏ͱ͢Δͱ
w ࠓճͷૢ࡞Ͱ໊લΛมߋ͍ͯ͠ͳ͍ʹ͔͔Θ
Βͣɺ໊લͰΤϥʔʹͳΔ
มߋͨ͠ͷ͜͜
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͞Βʹ
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ύεϫʔυมߋը໘
w ଞͷઃఆը໘ͱΓग़ͯ͠ɺύεϫʔυ͚ͩ
Λมߋ͢Δը໘ͱ͍͏ͭ͘ΓΑ͋͘Δͱࢥ͍
·͢
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ύεϫʔυΛมߋ͢Δը໘ͳͷʹɺ
໊લ͕ͯ͘ΤϥʔͱݴΘΕΔ
w ͪΖΜɺ͜ͷը໘Ͱ໊લΛม͑Δ͜ͱͰ͖ͳ͍
w ϢʔβͲ͏͠Α͏ͳ͍
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͕ͨͬͯ͠
w 8FCΞϓϦϨΠϠʔͰͷ੍͚ͩͰͳ͘ɺ͖ͬ
ͪΓͱ%#Ͱͷ੍ΛೖΕ·͠ΐ͏
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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
%#ʹMJNJUͱOPUOVMM੍Λֻ͚
Δʢ3BJMTͷNJHSBUJPOͰΔྫʣ
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Μɺ͡Ό͋%#ͷ੍͚ͩష͓͚ͬͯɺ
3BJMTͷWBMJEBUJPOཁΒͳ͍Μ͡ΌͶʁ
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ͱ͍͏Θ͚ͰͬͯΈΔͱ
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WBMJEBUJPOΤϥʔ͕ฦ͍ͬͯͨ
ՕॴͰΤϥʔʹ
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͡Ό͋͜ͷ%#ͷΤϥʔΛྫ֎DBUDIͯ͠ɺ
దͳΤϥʔϝοηʔδΛฦ͢Α͏ʹ
ͯ͠Εɾɾɾ
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ͦΕɺ3BJMTͷWBMJEBUJPOͷ
ํָ͕͡ΌͶ
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ͱ͍͏Θ͚Ͱ
w %#ͷ੍γεςϜΛकΔͨΊʹઈରʹֻ͚·
͠ΐ͏ɻ͕͜͜ΞϓϦϨΠϠʔͰͷWBMJEBUJPOΑ
ΓΏΔ͍ͱ͍͏͜ͱ͕͍͚͋ͬͯͳ͍ɻ
w ΞϓϦϨΠϠʔͰɺແବͳΫΤϦൃߦΛ͠ͳ
͍ʗΤϥʔॲཧΛదʹ͢ΔͨΊʹWBMJEBUJPOΛ
Δ͜ͱΛڧ͘ਪ͠·͢ɻ
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ΊͰͨ͠ΊͰͨ͠
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Ͱͳ͍ʂ
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͜͜·Ͱ
w γεςϜͷͨΊͷWBMJEBUJPOͷ
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͔͜͜Β
w 69ͷͨΊͷWBMJEBUJPOͷ
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69ͷͨΊͷWBMJEBUJPOͱʁ
w Α͋͘ΔϢʔβొϑΥʔϜ
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Ϣʔβ*%ΛೖΕͯΈΔ
w ొϘλϯΛԡ͢ͱ͢ͰʹΘΕ͍ͯ·͢ɺͱΤ
ϥʔ͕ฦͬͯ͘Δ
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ผͷ*%Λࢼ͢
w ·ౖͨΒΕΔ
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͞Βʹผͷ*%Λࢼ͢
w ·ͨ·ͨΤϥʔʹͳΔ
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Ϣʔβʔౖͬͯ
ͯ͠͠·͏
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Ͳ͏͢Ε͍͍ͷ͔ʁ
w ೖྗ͢ΔϘλϯԡ͢Τϥʔ͕ฦͬͯ͘
Δɺͱ͍͏Ұ࿈ͷྲྀΕΛ܁Γฦ͢ͷۤ௧
w ೖྗͨ࣌͠Ͱɺͦͷೖྗ͕ड͚ೖΕՄೳ͔Ͳ
͏͔ΛΘ͔ΔΑ͏ʹ͢Δ͖
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Ϣʔβ͕ೖྗΛऴ͑ͨλΠϛϯάͰϑΟʔυόοΫ
μϝͳ߹ͦͦԡͤͳ͘͢Δ
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ޭ͢Δ߹ڭ͑ͯ͋͛Δ
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w %#Ͱ͙ͷγεςϜͷͨΊͷWBMJEBUJPO
w Ϣʔβʹշదʹೖྗͯ͠Β͏ͨΊͷɺ69ͷͨ
ΊͷWBMJEBUJPO͕ඞཁ
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Ͳ͏࣮ݱ͢Δ͔ʁ
w ઌఔͷྫɺ%#ͰͷॏෳνΣοΫ͕ඞཁͳͷ
Ͱ+BWBTDSJQU"1*ͷ࿈ܞ͕ඞཁͳέʔεɻ
ͪΐͬͱ͍͜͠ͷͰ͋ͱͰɻ
w ·ͣɺ'PSN͚ͩͰஅͰ͖Δɺʮඞਢೖྗʯ
ʮ੍͞ݶʯʮϑΥʔϚοτνΣοΫʯʹ͍ͭ
ͯ͠·͢ɻ
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'PSNͰஅ͢ΔWBMJEBUJPO
w ྫ͑ɺ)5.-ʹSFRVJSFEଐੑFNBJMଐੑ
ͳͲ͕͋Δ
w ೖྗඞਢ߲ʹೖྗ͍ͯ͠ͳ͔ͬͨΓɺࢦఆͷ
ϑΥʔϚοτʹͳ͍ͬͯͳ͔ͬͨΒϒϥβϨ
ϕϧͰΤϥʔΛฦͯ͘͠ΕΔ
w ·͋ศར
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ͱ͜Ζ͕
w ಈ͔ͳ͍ϒϥβ͕
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w ͋Δ͚Ͳɺͦ͏͍͏ϨϕϧͷͰͳ͘
w *&ࢮΜͩʂ͏͍ͳ͍ʂ
͋
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4BGBSJ
w ಈ͔ͳ͍
w ࠷৽ͷ.BD04
J04Ͱಈ͔ͳ͍
w ͜ΕͰಈ͔ͳ͍Ҏ্ɺීٴΛߟ͑ΔͱཔΕͳ
͍ͱߟ͑Δ͖
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+BWBTDSJQUͰΔ
w K2VFSZͳΒ͍͔ͭ͘ϓϥάΠϯ͕͋Δ
w 7VF
3FBDU
"OHVMBSͷϑϨʔϜϫʔΫΛ༻
͍ͯ͠ΔͳΒɺͦ͜Ͱͷྲّྀʹै͏ͱָ࣮͕
ͳͣ
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௨৴͕ඞཁͳͭɺ
ೖྗͷλΠϛϯάͰ௨৴ͯ݁͠ՌΛग़ͯ͠Δ
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͜͏͍͏Πϝʔδ
'PSN
Ϣʔβ +BWBTDSJQU
"1*
%#
ೖྗ มߋΛݕ
ೖྗ༰ΛૹΔ
%#ʹ͍߹Θͤ
0,/(
0,/(
0,ʗ/(
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+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("
͜ͷϢʔβ໊ΘΕ͍ͯ·͢
")
12 $("#submit-button").prop("disabled", true)
13 else
14 $("#account-result").html("͜ͷϢʔβ໊༻ՄೳͰ͢
")
15 $("#submit-button").prop("disabled", false)
16 )
17 )
18
w $P⒎FF4DSJQUͰ͢
w ࣮ࡍʹLFZVQͰΔͱ௨৴සଟ͗͢ΔͷͰEFCPVDF͢ΔQMVHJOͳͲ͍·͠ΐ͏
w ྫK2VFSZͰ͕͢ɺԿΒ͔ͷϑϨʔϜϫʔΫΛ͏ͷΦεεϝͰ͢
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֬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
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͜͜Ͱ
w +4ͷWBMJEBUJPO͚͓͚ͩͬͯɺ%#ͷ੍ཁ
Βͳ͍Μ͡Όͳ͍ʁ
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Μͳͨ͜ʔͳ͍
w +4ඇରԠϒϥβʗΦϑʹ͢Δʗ1045
ͷ63-Λୟ͘ɺճආ༨༟
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w +4ͱ%#͚͓͚ͩͬͯ3BJMTͷ͍ͭΒͳ
͍Μ͡Όͳ͍ʁ
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͋·ΓΑ͘ͳ͍
w +4ճආ͢ΔΑ͏ͳΞΫηεʹରͯ͠ɺ3BJMTͰద
ͳWBMJEBUJPOͰΤϥʔϝοηʔδΛฦͯ͠Δ
ඞཁͳ͍·͋Θ͔Δ
w %#ʹରͯ͠ແବͳ௨৴ʗΫΤϦ͕ൃߦ͞ΕΔՄ
ೳੑ͕͋ΔΑ͘ͳ͍
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͞Βʹ
w "1*Խ͢ΔͷͰ͋Εɺ3BJMTͷNPEFMʹΑΔ
WBMJEBUJPO͕͙ՕॴͱͳΔ
w େͨ͠खؒͰͳ͍ͷͰɺNPEFMͰͷWBMJEBUJPO
͓ͬͯ͘΄͏͕ྑ͍ɻ
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8FCΞϓϦͰͳ͘εϚϗͷ
߹ʁ
w "1*αʔόཱͯͯɺεϚϗ͔Β"1*Λୟͭ͘
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69ͷͨΊͷWBMJEBUJPO
ΫϥΠΞϯτଆͰ
w +4ͷ࣌ͱಉ͡Α͏ʹɺۃྗແବͳ௨৴Λൃੜ͞
ͤͣʹɺϢʔβͷೖྗʹରͯ͠ૉૣ͘ϑΟʔυόο
ΫΛฦ͢
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αʔόଆ
w %#ଆݴ͏·Ͱͳ͘ඞཁ
w ΫϥΠΞϯτ͕όά͍ͬͯΔՄೳੑ͋ΔͷͰɺ
8FCΞϓϦͷNPEFMͰͷWBMJEBUJPOඞཁɻ
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·ͱΊ
w ࠷ޙඌ %#
Ͱෆਖ਼ͳઈରޚ͢Δγες
ϜͷͨΊͷWBMJEBUJPO
w ࠷લྻ +4
ΫϥΠΞϯτΞϓϦ
Ͱਖ਼ৗೖྗͷͨ
ΊͷಋઢΛ࡞ͬͯ͋͛Δ69ͷͨΊͷ
WBMJEBUJPO
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͝੩ௌ͋Γ͕ͱ͏
͍͟͝·ͨ͠