質問編集履歴
2
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###関係
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**tweetテーブル**
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|id|text|
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|id|text|school_a.id|school_b.id
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|:--|:--:|--:|
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|1|おはよう|1|
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|1|おはよう|1|2|
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school_a.idはA高校を指しています
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school_b.idはB高校を指しています
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**categoriesテーブル**
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|id|name|
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|:--|:--:|
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|1|A高校|
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|2|B高校|
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**Tweetモデル**
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```
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belongs_to :
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belongs_to :school_a,class_name: 'Category', foreign_key: 'school_a_id'
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belongs_to :school_b,class_name: 'Category', foreign_key: 'school_b_id'
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```
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**Categoryモデル**
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```
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has_many :tweets
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has_many :
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has_many :school_a_tweets,class_name: 'Tweet', foreign_key: 'school_a_id'
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has_many :school_b_tweets,class_name: 'Tweet', foreign_key: 'school_b_id'
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```
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**Categoryモデル**
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```
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has_many :tweets
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has_many :school_tweets,class_name: 'Tweet', foreign_key: 'school_id'
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```
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