Donal McBreen
97bcdf1853
SQLite columns lengths are purely informational, so we'll enforce the limits via a concern that checks the lengths from the schema.
59 lines
1.5 KiB
Ruby
59 lines
1.5 KiB
Ruby
# Apply MySQL-compatible column limits when defining tables.
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#
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# For string columns: defaults to 255 (MySQL's VARCHAR default)
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#
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# For text columns: converts MySQL's `size:` option to equivalent limits:
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# - (blank/default): 65,535 (TEXT)
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# - size: :tiny: 255 (TINYTEXT)
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# - size: :medium: 16,777,215 (MEDIUMTEXT)
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# - size: :long: 4,294,967,295 (LONGTEXT)
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#
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# This ensures the SQLite schema records the same limits as MySQL,
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# which the ColumnLimits validation concern uses to enforce limits.
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module TableDefinitionColumnLimits
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TEXT_SIZE_TO_LIMIT = {
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tiny: 255,
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medium: 16_777_215,
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long: 4_294_967_295
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}.freeze
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TEXT_DEFAULT_LIMIT = 65_535
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STRING_DEFAULT_LIMIT = 255
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def column(name, type, **options)
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if type == :string
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options[:limit] ||= STRING_DEFAULT_LIMIT
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end
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if type == :text
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if options.key?(:size)
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size = options.delete(:size)
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options[:limit] ||= TEXT_SIZE_TO_LIMIT.fetch(size) do
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raise ArgumentError, "Unknown text size: #{size.inspect}. Use :tiny, :medium, or :long"
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end
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else
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options[:limit] ||= TEXT_DEFAULT_LIMIT
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end
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end
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super
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end
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end
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ActiveSupport.on_load(:active_record) do
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ActiveRecord::ConnectionAdapters::TableDefinition.prepend(TableDefinitionColumnLimits)
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end
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ActiveSupport.on_load(:action_text_rich_text) do
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include ColumnLimits
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end
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ActiveSupport.on_load(:active_storage_blob) do
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include ColumnLimits
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end
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ActiveSupport.on_load(:active_storage_attachment) do
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include ColumnLimits
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end
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