d38dcf1e3b
This ensures that options such as `using: :gin` and PostgreSQL operator classes are ignored when loading a schema into a MySQL database.
49 lines
1.7 KiB
Ruby
49 lines
1.7 KiB
Ruby
# This patches ActiveRecord so indexes created using the MySQL adapter ignore
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# any PostgreSQL specific options (e.g. `using: :gin`).
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#
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# These patches do the following for MySQL:
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#
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# 1. Indexes created using the :opclasses option are ignored (as they serve no
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# purpose on MySQL).
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# 2. When creating an index with `using: :gin` the `using` option is discarded
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# as :gin is not a valid value for MySQL.
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# 3. The `:opclasses` option is stripped from add_index_options in case it's
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# used anywhere other than in the add_index methods.
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if defined?(ActiveRecord::ConnectionAdapters::Mysql2Adapter)
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module ActiveRecord
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module ConnectionAdapters
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class Mysql2Adapter < AbstractMysqlAdapter
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alias_method :__gitlab_add_index, :add_index
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alias_method :__gitlab_add_index_sql, :add_index_sql
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alias_method :__gitlab_add_index_options, :add_index_options
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def add_index(table_name, column_name, options = {})
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unless options[:opclasses]
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__gitlab_add_index(table_name, column_name, options)
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end
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end
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def add_index_sql(table_name, column_name, options = {})
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unless options[:opclasses]
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__gitlab_add_index_sql(table_name, column_name, options)
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end
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end
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def add_index_options(table_name, column_name, options = {})
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if options[:using] and options[:using] == :gin
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options = options.dup
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options.delete(:using)
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end
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if options[:opclasses]
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options = options.dup
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options.delete(:opclasses)
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end
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__gitlab_add_index_options(table_name, column_name, 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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