instance method
data_source_exists?
Ruby on Rails 5.0.7.2
Since v4.2.11.3 Last seen in v5.0.7.2Available in: v4.2.11.3 v5.0.7.2
Signature
data_source_exists?(table_name)No documentation comment.
Parameters
-
table_namereq
Source
# File activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb, line 347
def data_source_exists?(table_name)
return false unless table_name.present?
schema, name = extract_schema_qualified_name(table_name)
sql = "SELECT table_name FROM information_schema.tables "
sql << "WHERE table_schema = #{schema} AND table_name = #{name}"
select_values(sql, 'SCHEMA').any?
end
Defined in activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb line 347
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Defined in ActiveRecord::ConnectionAdapters::AbstractMysqlAdapter