openstreetmap-website/lib/migrate.rb
2015-02-20 08:56:16 +00:00

50 lines
1.8 KiB
Ruby

module ActiveRecord
module ConnectionAdapters
module SchemaStatements
def add_index_options_with_columns(table_name, column_name, options = {})
columns = options.delete(:columns)
index_name, index_type, index_columns, index_options, algorithm, using = add_index_options_without_columns(table_name, column_name, options)
[index_name, index_type, columns || index_columns, index_options, algorithm, using]
end
alias_method_chain :add_index_options, :columns
end
module PostgreSQL
module Quoting
def quote_column_name_with_arrays(name)
Array(name).map { |n| quote_column_name_without_arrays(n) }.join(", ")
end
alias_method_chain :quote_column_name, :arrays
end
module SchemaStatements
def add_primary_key(table_name, column_name, _options = {})
execute "ALTER TABLE #{quote_table_name(table_name)} ADD PRIMARY KEY (#{quote_column_name(column_name)})"
end
def remove_primary_key(table_name)
execute "ALTER TABLE #{quote_table_name(table_name)} DROP PRIMARY KEY"
end
def alter_primary_key(table_name, new_columns)
execute "ALTER TABLE #{quote_table_name(table_name)} DROP CONSTRAINT #{quote_table_name(table_name + "_pkey")}"
execute "ALTER TABLE #{quote_table_name(table_name)} ADD PRIMARY KEY (#{quote_column_name(new_columns)})"
end
def create_enumeration(enumeration_name, values)
execute "CREATE TYPE #{enumeration_name} AS ENUM ('#{values.join '\',\''}')"
end
def drop_enumeration(enumeration_name)
execute "DROP TYPE #{enumeration_name}"
end
def rename_enumeration(old_name, new_name)
execute "ALTER TYPE #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}"
end
end
end
end
end