69 lines
2.7 KiB
Ruby
69 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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# See https://docs.gitlab.com/ee/development/migration_style_guide.html
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# for more information on how to write migrations for GitLab.
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class <%= migration_class_name %> < ActiveRecord::Migration[<%= ActiveRecord::Migration.current_version %>]
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# Uncomment the following include if you require helper functions:
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# include Gitlab::Database::MigrationHelpers
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# Set this constant to true if this migration requires downtime.
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DOWNTIME = false
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# When a migration requires downtime you **must** uncomment the following
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# constant and define a short and easy to understand explanation as to why the
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# migration requires downtime.
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# DOWNTIME_REASON = ''
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# When using the methods "add_concurrent_index", "remove_concurrent_index" or
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# "add_column_with_default" you must disable the use of transactions
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# as these methods can not run in an existing transaction.
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# When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
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# that either of them is the _only_ method called in the migration,
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# any other changes should go in a separate migration.
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# This ensures that upon failure _only_ the index creation or removing fails
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# and can be retried or reverted easily.
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#
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# To disable transactions uncomment the following line and remove these
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# comments:
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# disable_ddl_transaction!
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<%- if migration_action == 'add' -%>
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def change
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<% attributes.each do |attribute| -%>
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<%- if attribute.reference? -%>
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add_reference :<%= table_name %>, :<%= attribute.name %><%= attribute.inject_options %>
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<%- else -%>
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add_column :<%= table_name %>, :<%= attribute.name %>, :<%= attribute.type %><%= attribute.inject_options %>
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<%- if attribute.has_index? -%>
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add_index :<%= table_name %>, :<%= attribute.index_name %><%= attribute.inject_index_options %>
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<%- end -%>
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<%- end -%>
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<%- end -%>
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end
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<%- elsif migration_action == 'join' -%>
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def change
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create_join_table :<%= join_tables.first %>, :<%= join_tables.second %> do |t|
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<%- attributes.each do |attribute| -%>
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<%= '# ' unless attribute.has_index? -%>t.index <%= attribute.index_name %><%= attribute.inject_index_options %>
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<%- end -%>
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end
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end
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<%- else -%>
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def change
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<% attributes.each do |attribute| -%>
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<%- if migration_action -%>
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<%- if attribute.reference? -%>
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remove_reference :<%= table_name %>, :<%= attribute.name %><%= attribute.inject_options %>
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<%- else -%>
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<%- if attribute.has_index? -%>
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remove_index :<%= table_name %>, :<%= attribute.index_name %><%= attribute.inject_index_options %>
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<%- end -%>
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remove_column :<%= table_name %>, :<%= attribute.name %>, :<%= attribute.type %><%= attribute.inject_options %>
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<%- end -%>
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<%- end -%>
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<%- end -%>
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end
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<%- end -%>
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end
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