Rails Migration Change Foreign Key

May 25, 2016. You need to change this line, add_foreign_key :my_object_times, :my_objects, on_delete: cascade. With this one: add_foreign_key.

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String Or Binary Data Would Be Truncated Error Apr 8, 2011. From @gmmastros's answer. Whenever you see the message. string or binary data would be truncated. Think to yourself. The field is NOT. Hi all, i have "String or binary data would be truncated" error when i try to execute an insert statment. can i find witch field is affected by this. [Solved]

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While it's not required you might want to add foreign key constraints to guarantee. remove foreign key for a specific column.

Mar 17, 2016. Ruby on Rails latest stable (v4.2.7) – 1 note – Class:. Adds a new foreign key. from_table is the table with the key column, to_table contains the.

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Jan 5, 2015. Luckily, Rails 4.2 rectifies this with new features to add and remove foreign keys. In this article we will discuss what foreign keys are, and how to.

database migration – Change foreign key column name in rails. – Feb 5, 2016. rails g migration Change ForeignKeyForProjects # db/migrate/ change_foreign_key_for_projects.rb class ChangeForeignKeyForProjects.

Aug 11, 2015. You can pass in options for the foreign key as following: class CreatePostComments < ActiveRecord::Migration def change create_table.