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25 lines
766 B
Ruby
25 lines
766 B
Ruby
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class UnreadMigration < Unread::MIGRATION_BASE_CLASS
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def self.up
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create_table ReadMark, force: true, options: create_options do |t|
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t.references :readable, polymorphic: { null: false }
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t.references :reader, polymorphic: { null: false }
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t.datetime :timestamp
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end
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add_index ReadMark, [:reader_id, :reader_type, :readable_type, :readable_id], name: 'read_marks_reader_readable_index', unique: true
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end
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def self.down
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drop_table ReadMark
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end
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def self.create_options
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options = ''
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if defined?(ActiveRecord::ConnectionAdapters::Mysql2Adapter) \
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&& ActiveRecord::Base.connection.instance_of?(ActiveRecord::ConnectionAdapters::Mysql2Adapter)
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options = 'DEFAULT CHARSET=latin1'
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end
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options
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end
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end
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