Using With_scope with With_scope

Source: Internet
Author: User

ActiveRecord::Base  :p roject self  .  Find_incomplete find_all_by_complete ('created_at DESCEndEnd
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 class taskscontroller < applicationcontroller def index  @tasks = task.find_incomplete end         
The purpose of these two pieces of code is to call the Find_incomplete method, Return unfinished tasks in the project and follow the creation time in descending order


This method is good but there is a limitation that we cannot limit the data returned, we can use With_scope. Modify the code as follows:
ActiveRecord::Base  :p roject self  .  Do Find_all_by_complete ('created_at DESCendEnd       
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20
This successfully achieves the top 20 of all unfinished tasks



Using With_scope with With_scope

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