質問編集履歴
1
モデルファイルの追加
test
CHANGED
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File without changes
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test
CHANGED
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@@ -119,3 +119,49 @@
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119
119
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end
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120
120
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121
121
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```
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122
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+
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123
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+
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124
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+
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125
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+
モデルファイルは以下の通りです。
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126
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+
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127
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+
```
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128
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+
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129
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+
class RoomGroup < ApplicationRecord
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130
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+
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131
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+
belongs_to :user
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132
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+
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133
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+
belongs_to :room
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134
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+
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135
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end
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136
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+
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137
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+
```
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138
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+
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139
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+
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140
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+
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141
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+
```
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142
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+
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143
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+
class Room < ApplicationRecord
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144
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+
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145
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+
has_many :room_groups
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146
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+
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147
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has_many :users ,through: :room_groups
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148
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+
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149
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end
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150
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+
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151
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+
```
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152
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+
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153
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+
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154
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+
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155
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```
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156
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+
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157
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+
class User < ApplicationRecord
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158
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+
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159
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+
has_many :room_groups
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160
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+
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161
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+
has_many :rooms ,through: :room_groups
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162
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+
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163
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+
end
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164
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+
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165
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+
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166
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+
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167
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+
```
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