How to use _get_group_query_sql method in autotest

Best Python code snippet using autotest_python

models.py

Source:models.py Github

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...14 field_names.append(field)15 else:16 field_names.append(self._get_key_unless_is_function(field))17 return field_names18 def _get_group_query_sql(self, query, group_by, extra_select_fields):19 group_fields = self._get_field_names(group_by, extra_select_fields)20 select_fields = [field for field in group_fields21 if field not in extra_select_fields]22 for field_name, field_sql in extra_select_fields.iteritems():23 field_sql = self._get_key_unless_is_function(field_sql)24 select_fields.append(field_sql + ' AS ' + field_name)25 # add the extra fields to the query selects, so they'll be sortable26 # and Django won't mess with any of them27 query._select[field_name] = field_sql28 _, where, params = query._get_sql_clause()29 # insert GROUP BY clause into query30 group_by_clause = ' GROUP BY ' + ', '.join(group_fields)31 group_by_position = where.rfind('ORDER BY')32 if group_by_position == -1:33 group_by_position = len(where)34 where = (where[:group_by_position] +35 group_by_clause + ' ' +36 where[group_by_position:])37 return ('SELECT ' + ', '.join(select_fields) + where), params38 def _get_column_names(self, cursor):39 """\40 Gets the column names from the cursor description. This method exists41 so that it can be mocked in the unit test for sqlite3 compatibility."42 """43 return [column_info[0] for column_info in cursor.description]44 def execute_group_query(self, query, group_by, extra_select_fields=[]):45 """46 Performs the given query grouped by the fields in group_by with the47 given extra select fields added. extra_select_fields should be a dict48 mapping field alias to field SQL. Usually, the extra fields will use49 group aggregation functions. Returns a list of dicts, where each dict50 corresponds to single row and contains a key for each grouped field as51 well as all of the extra select fields.52 """53 sql, params = self._get_group_query_sql(query, group_by,54 extra_select_fields)55 cursor = readonly_connection.connection().cursor()56 cursor.execute(sql, params)57 field_names = self._get_column_names(cursor)58 row_dicts = [dict(zip(field_names, row)) for row in cursor.fetchall()]59 return row_dicts60 def get_count_sql(self, query):61 """62 Get the SQL to properly select a per-group count of unique matches for63 a grouped query. Returns a tuple (field alias, field SQL)64 """65 if query._distinct:66 pk_field = self.get_key_on_this_table()67 count_sql = 'COUNT(DISTINCT %s)' % pk_field...

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