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Question:
 In ActiveRecord, what is the difference between the has_many and has_many :through associations?

1.The has_many: through association is the one-to-many equivalent to the belongs_to one-to-one association.

2.Both associations are identical, and has_many: through is maintained only for legacy purposes.

3.The has_many association is a one-to-many association, while has_many: through is a one-to-one association that matches through a third model.

4.Both are one-to-many associations but with has_many :through, the declaring model can associate through a third model.

Posted Date:-2022-09-17 03:51:52

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