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from django.db.backends.base.creation import BaseDatabaseCreation
class DatabaseCreation(BaseDatabaseCreation):
def sql_table_creation_suffix(self):
suffix = []
test_settings = self.connection.settings_dict['TEST']
if test_settings['CHARSET']:
suffix.append('CHARACTER SET %s' % test_settings['CHARSET'])
if test_settings['COLLATION']:
suffix.append('COLLATE %s' % test_settings['COLLATION'])
return ' '.join(suffix)
def sql_for_inline_foreign_key_references(self, model, field, known_models, style):
"All inline references are pending under MySQL"
return [], True
def sql_destroy_indexes_for_fields(self, model, fields, style):
if len(fields) == 1 and fields[0].db_tablespace:
tablespace_sql = self.connection.ops.tablespace_sql(fields[0].db_tablespace)
elif model._meta.db_tablespace:
tablespace_sql = self.connection.ops.tablespace_sql(model._meta.db_tablespace)
else:
tablespace_sql = ""
if tablespace_sql:
tablespace_sql = " " + tablespace_sql
field_names = []
qn = self.connection.ops.quote_name
for f in fields:
field_names.append(style.SQL_FIELD(qn(f.column)))
index_name = "%s_%s" % (model._meta.db_table, self._digest([f.name for f in fields]))
from ..utils import truncate_name
return [
style.SQL_KEYWORD("DROP INDEX") + " " +
style.SQL_TABLE(qn(truncate_name(index_name, self.connection.ops.max_name_length()))) + " " +
style.SQL_KEYWORD("ON") + " " +
style.SQL_TABLE(qn(model._meta.db_table)) + ";",
]
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