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Editing: mysql_ext.py

import json

try:
    import mysql.connector as mysql_connector
except ImportError:
    mysql_connector = None
try:
    import mariadb
except ImportError:
    mariadb = None

from peewee import ImproperlyConfigured
from peewee import Insert
from peewee import MySQLDatabase
from peewee import Node
from peewee import NodeList
from peewee import SQL
from peewee import TextField
from peewee import fn
from peewee import __deprecated__

class MySQLConnectorDatabase(MySQLDatabase):
    def _connect(self):
        if mysql_connector is None:
            raise ImproperlyConfigured('MySQL connector not installed!')
        return mysql_connector.connect(db=self.database, autocommit=True,
                                       **self.connect_params)

def cursor(self, commit=None, named_cursor=None):
        if commit is not None:
            __deprecated__('"commit" has been deprecated and is a no-op.')
        if self.is_closed():
            if self.autoconnect:
                self.connect()
            else:
                raise InterfaceError('Error, database connection not opened.')
        return self._state.conn.cursor(buffered=True)

def get_binary_type(self):
        return mysql_connector.Binary

class MariaDBConnectorDatabase(MySQLDatabase):
    def _connect(self):
        if mariadb is None:
            raise ImproperlyConfigured('mariadb connector not installed!')
        self.connect_params.pop('charset', None)
        self.connect_params.pop('sql_mode', None)
        self.connect_params.pop('use_unicode', None)
        return mariadb.connect(db=self.database, autocommit=True,
                               **self.connect_params)

def _set_server_version(self, conn):
        version = conn.server_version
        version, point = divmod(version, 100)
        version, minor = divmod(version, 100)
        self.server_version = (version, minor, point)
        if self.server_version >= (10, 5, 0):
            self.returning_clause = True

def last_insert_id(self, cursor, query_type=None):
        if not self.returning_clause:
            return cursor.lastrowid
        elif query_type == Insert.SIMPLE:
            try:
                return cursor[0][0]
            except (AttributeError, IndexError):
                return cursor.lastrowid
        return cursor

def get_binary_type(self):
        return mariadb.Binary

class JSONField(TextField):
    field_type = 'JSON'

def __init__(self, json_dumps=None, json_loads=None, **kwargs):
        self._json_dumps = json_dumps or json.dumps
        self._json_loads = json_loads or json.loads
        super(JSONField, self).__init__(**kwargs)

def python_value(self, value):
        if value is not None:
            try:
                return self._json_loads(value)
            except (TypeError, ValueError):
                return value

def db_value(self, value):
        if value is not None:
            if not isinstance(value, Node):
                value = self._json_dumps(value)
            return value

def extract(self, path):
        return fn.json_extract(self, path)

def Match(columns, expr, modifier=None):
    if isinstance(columns, (list, tuple)):
        match = fn.MATCH(*columns)  # Tuple of one or more columns / fields.
    else:
        match = fn.MATCH(columns)  # Single column / field.
    args = expr if modifier is None else NodeList((expr, SQL(modifier)))
    return NodeList((match, fn.AGAINST(args)))

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