質問編集履歴
2
前提・実現したいことを書き直しました。
test
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test
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@@ -1,11 +1,21 @@
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1
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### 前提・実現したいこと
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2
2
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3
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社内ToDoアプリを作成中です
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5
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user（社員）がboard（情報を載せる所）を作った後
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6
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7
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そのboardを共有できる人を選択するのに
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3
9
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チェックボックスを使った、多対多の保存を行おうとしたのですが
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10
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5
11
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下記エラーがでて進めなくなりました。
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6
12
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7
13
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8
14
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15
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中間テーブルとして、roomを作っています。
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16
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18
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9
19
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### 発生している問題・エラーメッセージ
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10
20
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11
21
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1
ソースコードにuser,board,room（中間テーブル）のmigrateとModelを載せました。
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test
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@@ -84,6 +84,166 @@
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84
84
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85
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```
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86
86
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87
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### 追加情報
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88
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89
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user
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91
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```
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92
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93
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+
class CreateUsers < ActiveRecord::Migration[5.2]
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94
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95
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def change
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create_table :users do |t|
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98
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t.string :name
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100
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101
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t.string :email
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102
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103
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t.string :password_digest
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104
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105
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t.references :department, foreign_key: true
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106
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107
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t.boolean :admin, default: false
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t.timestamps
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112
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113
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end
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114
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115
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end
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116
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117
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end
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119
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120
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```
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122
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123
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```
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124
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125
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class User < ApplicationRecord
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126
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127
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before_save { self.email.downcase! }
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128
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129
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validates :name, presence: true, length: { maximum: 10 }
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130
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131
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validates :email, presence: true, length: { maximum: 255 },
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132
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133
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format: { with: /\A[\w+\-.]+@[a-z\d\-.]+.[a-z]+\z/i },
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134
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135
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uniqueness: { case_sensitive: false }
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136
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137
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has_secure_password
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138
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139
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+
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140
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belongs_to :department
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142
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143
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has_many :boards, through: :rooms
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144
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145
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has_many :rooms
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146
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147
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has_many :logs, dependent: :destroy
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148
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149
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end
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150
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151
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```
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153
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155
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157
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board
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159
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```
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160
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161
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class CreateBoards < ActiveRecord::Migration[5.2]
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162
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163
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def change
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164
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165
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create_table :boards do |t|
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166
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167
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t.string :name, null: false
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168
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169
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t.references :user, foreign_key: true
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170
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171
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t.string :release
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172
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173
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174
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175
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t.timestamps
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176
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177
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end
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178
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179
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end
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180
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+
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181
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end
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182
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183
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184
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185
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```
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186
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187
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```
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188
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189
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class Board < ApplicationRecord
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190
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191
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has_many :users, through: :rooms
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192
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193
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has_many :rooms
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194
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195
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has_many :lists, dependent: :destroy
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196
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197
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end
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198
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199
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200
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+
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201
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```
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202
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+
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203
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+
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204
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+
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205
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+
room(中間テーブル)
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206
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+
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207
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```
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208
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+
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209
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+
class CreateRooms < ActiveRecord::Migration[5.2]
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210
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211
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def change
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212
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+
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213
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create_table :rooms do |t|
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214
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+
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215
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+
t.references :user, foreign_key: true
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216
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+
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217
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t.references :board, foreign_key: true
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218
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+
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219
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+
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220
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+
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221
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+
t.timestamps
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222
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223
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+
t.index [:user_id, :board_id], unique: true
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|
224
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+
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225
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+
end
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226
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+
|
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227
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+
end
|
|
228
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+
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229
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+
end
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230
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+
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231
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+
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232
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+
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|
233
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+
```
|
|
234
|
+
|
|
235
|
+
```
|
|
236
|
+
|
|
237
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+
class Room < ApplicationRecord
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238
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+
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239
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+
belongs_to :user
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240
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+
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241
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+
belongs_to :board
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242
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+
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243
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+
end
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244
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+
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245
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+
```
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246
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+
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87
247
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88
248
|
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89
249
|
### 試したこと
|