bigdir/db/migrate/041_rename_comment_to_comme...

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2013-08-01 10:33:49 +08:00
class RenameCommentToComments < ActiveRecord::Migration
def self.up
rename_column(:comments, :comment, :comments) if ActiveRecord::Base.connection.columns(Comment.table_name).detect{|c| c.name == "comment"}
rename_column(:wiki_contents, :comment, :comments) if ActiveRecord::Base.connection.columns(WikiContent.table_name).detect{|c| c.name == "comment"}
rename_column(:wiki_content_versions, :comment, :comments) if ActiveRecord::Base.connection.columns(WikiContent.versioned_table_name).detect{|c| c.name == "comment"}
rename_column(:time_entries, :comment, :comments) if ActiveRecord::Base.connection.columns(TimeEntry.table_name).detect{|c| c.name == "comment"}
rename_column(:changesets, :comment, :comments) if ActiveRecord::Base.connection.columns(Changeset.table_name).detect{|c| c.name == "comment"}
end
def self.down
raise IrreversibleMigration
end
end