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venv/Lib/site-packages/django/db/backends/oracle/utils.py

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+import datetime
+
+from .base import Database
+
+
+class InsertVar:
+    """
+    A late-binding cursor variable that can be passed to Cursor.execute
+    as a parameter, in order to receive the id of the row created by an
+    insert statement.
+    """
+    types = {
+        'AutoField': int,
+        'BigAutoField': int,
+        'SmallAutoField': int,
+        'IntegerField': int,
+        'BigIntegerField': int,
+        'SmallIntegerField': int,
+        'PositiveBigIntegerField': int,
+        'PositiveSmallIntegerField': int,
+        'PositiveIntegerField': int,
+        'FloatField': Database.NATIVE_FLOAT,
+        'DateTimeField': Database.TIMESTAMP,
+        'DateField': Database.Date,
+        'DecimalField': Database.NUMBER,
+    }
+
+    def __init__(self, field):
+        internal_type = getattr(field, 'target_field', field).get_internal_type()
+        self.db_type = self.types.get(internal_type, str)
+        self.bound_param = None
+
+    def bind_parameter(self, cursor):
+        self.bound_param = cursor.cursor.var(self.db_type)
+        return self.bound_param
+
+    def get_value(self):
+        return self.bound_param.getvalue()
+
+
+class Oracle_datetime(datetime.datetime):
+    """
+    A datetime object, with an additional class attribute
+    to tell cx_Oracle to save the microseconds too.
+    """
+    input_size = Database.TIMESTAMP
+
+    @classmethod
+    def from_datetime(cls, dt):
+        return Oracle_datetime(
+            dt.year, dt.month, dt.day,
+            dt.hour, dt.minute, dt.second, dt.microsecond,
+        )
+
+
+class BulkInsertMapper:
+    BLOB = 'TO_BLOB(%s)'
+    CLOB = 'TO_CLOB(%s)'
+    DATE = 'TO_DATE(%s)'
+    INTERVAL = 'CAST(%s as INTERVAL DAY(9) TO SECOND(6))'
+    NUMBER = 'TO_NUMBER(%s)'
+    TIMESTAMP = 'TO_TIMESTAMP(%s)'
+
+    types = {
+        'AutoField': NUMBER,
+        'BigAutoField': NUMBER,
+        'BigIntegerField': NUMBER,
+        'BinaryField': BLOB,
+        'BooleanField': NUMBER,
+        'DateField': DATE,
+        'DateTimeField': TIMESTAMP,
+        'DecimalField': NUMBER,
+        'DurationField': INTERVAL,
+        'FloatField': NUMBER,
+        'IntegerField': NUMBER,
+        'PositiveBigIntegerField': NUMBER,
+        'PositiveIntegerField': NUMBER,
+        'PositiveSmallIntegerField': NUMBER,
+        'SmallAutoField': NUMBER,
+        'SmallIntegerField': NUMBER,
+        'TextField': CLOB,
+        'TimeField': TIMESTAMP,
+    }
+
+
+def dsn(settings_dict):
+    if settings_dict['PORT']:
+        host = settings_dict['HOST'].strip() or 'localhost'
+        return Database.makedsn(host, int(settings_dict['PORT']), settings_dict['NAME'])
+    return settings_dict['NAME']