method
alter_table
v7.1.3.4 -
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Class: ActiveRecord::ConnectionAdapters::SQLite3Adapter
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alter_table( table_name, foreign_keys = foreign_keys(table_name), check_constraints = check_constraints(table_name), **options )
private
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# File activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb, line 501 def alter_table( table_name, foreign_keys = foreign_keys(table_name), check_constraints = check_constraints(table_name), **options ) altered_table_name = "a#{table_name}" caller = lambda do |definition| rename = options[:rename] || {} foreign_keys.each do |fk| if column = rename[fk.options[:column]] fk.options[:column] = column end to_table = strip_table_name_prefix_and_suffix(fk.to_table) definition.foreign_key(to_table, **fk.options) end check_constraints.each do |chk| definition.check_constraint(chk.expression, **chk.options) end yield definition if block_given? end transaction do disable_referential_integrity do move_table(table_name, altered_table_name, options.merge(temporary: true)) move_table(altered_table_name, table_name, &caller) end end end