Nic*_*5a1 7 ruby ruby-on-rails seed has-and-belongs-to-many ruby-on-rails-3
Equipment.create(name: "Room to run")
Equipment.create(name: "Pull-up bar")
Workout.create(
description: "Do 100 pull-ups then run 5km",
:equipment => Equipment.where(:name => 'Pull-up bar'))
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设备和锻炼有HABTM关系.上面的种子代码有效,但我怎么能同时分配第二个设备协会?
在where条件中,您可以使用数组:
Equipment.create(name: "Room to run")
Equipment.create(name: "Pull-up bar")
Workout.create(
description: "Do 100 pull-ups then run 5km",
:equipment => Equipment.where(:name => ['Pull-up bar', 'Room to run']))
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