--- /dev/null
+import re
+import sqlite3
+
+from .row import Row
+
+
+class OperationalError(Exception):
+ pass
+
+
+class Cursor:
+ class QueryNotSupported(Exception):
+ pass
+
+ def __init__(self, conn):
+ self.conn = conn
+ self.connector = conn.connector_class(conn)
+ self.rows = []
+ self.description = ()
+
+ def execute(
+ self,
+ sql,
+ params=None,
+ truncate=False,
+ custom_time_limit=None,
+ page_size=None,
+ log_sql_errors=True,
+ ):
+ if params is None:
+ params = {}
+ results = []
+ truncated = False
+ description = ()
+
+ # Normalize sql
+ sql = sql.strip()
+ sql = ' '.join(sql.split())
+
+ if sql == "select name from sqlite_master where type='table'" or \
+ sql == "select name from sqlite_master where type=\"table\"":
+ results = [{'name': name} for name in self.connector.table_names()]
+ elif sql == "select name from sqlite_master where rootpage = 0 and sql like '%VIRTUAL TABLE%USING FTS%'":
+ results = [{'name': name} for name in self.connector.hidden_table_names()]
+ elif sql == 'select 1 from sqlite_master where tbl_name = "geometry_columns"':
+ if self.connector.detect_spatialite():
+ results = [{'1': '1'}]
+ elif sql == "select name from sqlite_master where type='view'":
+ results = [{'name': name} for name in self.connector.view_names()]
+ elif sql.startswith("select count(*) from ["):
+ match = re.search(r'select count\(\*\) from \[(.*)\]', sql)
+ results = [{'count(*)': self.connector.table_count(match.group(1))}]
+ elif sql.startswith("select count(*) from "):
+ match = re.search(r'select count\(\*\) from (.*)', sql)
+ results = [{'count(*)': self.connector.table_count(match.group(1))}]
+ elif sql.startswith("PRAGMA table_info("):
+ match = re.search(r'PRAGMA table_info\(\[?\"?([\d\w\/%]*)\"?\]?\)', sql)
+ results = self.connector.table_info(match.group(1))
+ elif sql.startswith("select name from sqlite_master where rootpage = 0 and ( sql like \'%VIRTUAL TABLE%USING FTS%content="):
+ match = re.search(r'select name from sqlite_master where rootpage = 0 and \( sql like \'%VIRTUAL TABLE%USING FTS%content="(.*)"', sql)
+ if self.connector.detect_fts(match.group(1)):
+ results = [{'name': match.group(1)}]
+ elif sql.startswith("PRAGMA foreign_key_list(["):
+ match = re.search(r'PRAGMA foreign_key_list\(\[(.*)\]\)', sql)
+ results = self.connector.foreign_keys(match.group(1))
+ elif sql == "select 1 from sqlite_master where type='table' and name=?":
+ if self.connector.table_exists(params[0]):
+ results = [{'1': '1'}]
+ elif sql == "select sql from sqlite_master where name = :n and type=:t":
+ if self.connector.table_exists(params['n']):
+ results = [{'sql': self.connector.table_definition(params['t'], params['n'])}]
+ elif sql == "select sql from sqlite_master where tbl_name = :n and type='index' and sql is not null":
+ results = [{'sql': sql} for sql in self.connector.indices_definition(params['n'])]
+ else:
+ try:
+ results, truncated, description = \
+ self.connector.execute(
+ sql,
+ params=params,
+ truncate=truncate,
+ custom_time_limit=custom_time_limit,
+ page_size=page_size,
+ log_sql_errors=log_sql_errors,
+ )
+ except OperationalError as ex:
+ raise sqlite3.OperationalError(*ex.args)
+
+ self.rows = [Row(result) for result in results]
+ self.description = description
+
+ def fetchall(self):
+ return self.rows
+
+ def fetchmany(self, max):
+ return self.rows[:max]
+
+ def __getitem__(self, index):
+ return self.rows[index]