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Adding :default => true to boolean in existing Rails column
...
change_column is a method of ActiveRecord::Migration, so you can't call it like that in the console.
If you want to add a default value for this column, create a new migration:
rails g migration add_default_value_to_show_attribute
Then in the migration created:
# That's the more generic way t...
Open a file from Cygwin
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How to change the DataTable Column Name?
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ValueError: math domain error
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How to append multiple values to a list in Python
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git working on two branches simultaneously
...r, with a more robust mechanism where those "linked" working trees are actually recorded in the main repo new $GIT_DIR/worktrees folder (so that work on any OS, including Windows).
Again, once you have cloned a repo (in a folder like /path/to/myrepo), you can add worktrees for different branches in...
MySQL select with CONCAT condition
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The type must be a reference type in order to use it as parameter 'T' in the generic type or method
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How can I break an outer loop with PHP?
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Index on multiple columns in Ruby on Rails
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