質問編集履歴
1
モデルのコードを追加
test
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File without changes
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test
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@@ -42,6 +42,8 @@
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#コード
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46
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45
47
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blogコントローラ
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@@ -79,3 +81,55 @@
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79
81
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end
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82
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81
83
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```
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84
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85
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86
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87
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blogモデル
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88
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89
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```ruby
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90
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91
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class Blog < ApplicationRecord
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92
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93
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has_many :blog_tags
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94
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95
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has_many :tags, through: :blog_tags
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96
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97
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end
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98
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99
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```
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100
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101
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102
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103
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blog_tagモデル（中間テーブル）
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104
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105
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```ruby
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106
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107
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class BlogTag < ApplicationRecord
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108
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109
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belongs_to :blog, optional: true
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110
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111
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belongs_to :tag, optional: true
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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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116
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117
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```
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118
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119
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120
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121
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tagモデル
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122
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123
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```ruby
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124
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125
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class Tag < ApplicationRecord
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126
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127
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has_many :blog_tags
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128
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129
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has_many :blogs, through: :blog_tags
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130
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131
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end
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134
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135
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```
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