70 lines
1.6 KiB
Ruby
70 lines
1.6 KiB
Ruby
module MigrationsHelpers
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def table(name)
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Class.new(ActiveRecord::Base) { self.table_name = name }
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end
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def migrations_paths
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ActiveRecord::Migrator.migrations_paths
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end
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def table_exists?(name)
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ActiveRecord::Base.connection.table_exists?(name)
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end
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def migrations
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ActiveRecord::Migrator.migrations(migrations_paths)
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end
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def reset_column_in_migration_models
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ActiveRecord::Base.clear_cache!
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described_class.constants.sort.each do |name|
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const = described_class.const_get(name)
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if const.is_a?(Class) && const < ActiveRecord::Base
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const.reset_column_information
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end
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end
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end
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def previous_migration
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migrations.each_cons(2) do |previous, migration|
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break previous if migration.name == described_class.name
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end
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end
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def migration_schema_version
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self.class.metadata[:schema] || previous_migration.version
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end
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def schema_migrate_down!
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disable_migrations_output do
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ActiveRecord::Migrator.migrate(migrations_paths,
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migration_schema_version)
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end
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reset_column_in_migration_models
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end
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def schema_migrate_up!
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disable_migrations_output do
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ActiveRecord::Migrator.migrate(migrations_paths)
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end
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reset_column_in_migration_models
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end
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def disable_migrations_output
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ActiveRecord::Migration.verbose = false
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yield
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ensure
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ActiveRecord::Migration.verbose = true
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end
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def migrate!
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ActiveRecord::Migrator.up(migrations_paths) do |migration|
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migration.name == described_class.name
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end
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end
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end
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