Class: SchemaFerry::Core::EnumCheckBuilder

Inherits:
Object
  • Object
show all
Includes:
IdentifierShortenable
Defined in:
lib/schema_ferry/core/enum_check_builder.rb

Overview

Builds CHECK constraints enforcing MySQL enum values on varchar columns (enum_as :check).

Constant Summary

Constants included from IdentifierShortenable

IdentifierShortenable::HASH_LENGTH, IdentifierShortenable::MAX_BYTES

Instance Method Summary collapse

Methods included from IdentifierShortenable

#shorten_identifier

Instance Method Details

#call(raw_table, rule) ⇒ Object 



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# File 'lib/schema_ferry/core/enum_check_builder.rb', line 10

def call(raw_table, rule)
  raw_table[:columns].filter_map do |col|
    next if rule.ignored_columns.include?(col[:name])
    # A type override takes the column away from varchar; the caller owns
    # any constraint then.
    next if rule.column_type_overrides.key?(col[:name])

    values = enum_values(col[:sql_type])
    next if values.nil?

    build_constraint(raw_table[:name], col[:name], values)
  end
end