我们从Python开源项目中，提取了以下26个代码示例，用于说明如何使用django.db.models.fields.TimeField()。
def check_expression_support(self, expression): bad_fields = (fields.DateField, fields.DateTimeField, fields.TimeField) bad_aggregates = (aggregates.Sum, aggregates.Avg, aggregates.Variance, aggregates.StdDev) if isinstance(expression, bad_aggregates): for expr in expression.get_source_expressions(): try: output_field = expr.output_field if isinstance(output_field, bad_fields): raise NotImplementedError( 'You cannot use Sum, Avg, StdDev, and Variance ' 'aggregations on date/time fields in sqlite3 ' 'since date/time is saved as text.' ) except FieldError: # Not every subexpression has an output_field which is fine # to ignore. pass
def get_django_field_map(self): from django.db.models import fields as djf return [ (djf.AutoField, PrimaryKeyField), (djf.BigIntegerField, BigIntegerField), # (djf.BinaryField, BlobField), (djf.BooleanField, BooleanField), (djf.CharField, CharField), (djf.DateTimeField, DateTimeField), # Extends DateField. (djf.DateField, DateField), (djf.DecimalField, DecimalField), (djf.FilePathField, CharField), (djf.FloatField, FloatField), (djf.IntegerField, IntegerField), (djf.NullBooleanField, partial(BooleanField, null=True)), (djf.TextField, TextField), (djf.TimeField, TimeField), (djf.related.ForeignKey, ForeignKeyField), ]
def get_db_converters(self, expression): converters = super(DatabaseOperations, self).get_db_converters(expression) internal_type = expression.output_field.get_internal_type() if internal_type == 'DateTimeField': converters.append(self.convert_datetimefield_value) elif internal_type == 'DateField': converters.append(self.convert_datefield_value) elif internal_type == 'TimeField': converters.append(self.convert_timefield_value) elif internal_type == 'DecimalField': converters.append(self.convert_decimalfield_value) elif internal_type == 'UUIDField': converters.append(self.convert_uuidfield_value) elif internal_type in ('NullBooleanField', 'BooleanField'): converters.append(self.convert_booleanfield_value) return converters
def _encodeValue(self, field, value): if value is fields.NOT_PROVIDED: return pyamf.Undefined if value is None: return value # deal with dates .. if isinstance(field, fields.DateTimeField): return value elif isinstance(field, fields.DateField): return datetime.datetime( value.year, value.month, value.day, 0, # hour 0, # minute 0, # second ) elif isinstance(field, fields.TimeField): return datetime.datetime( 1970, # year 1, # month 1, # day value.hour, value.minute, value.second, value.microsecond ) elif isinstance(value, files.FieldFile): return value.name return value
def _decodeValue(self, field, value): if value is pyamf.Undefined: return fields.NOT_PROVIDED if isinstance(field, fields.AutoField) and value == 0: return None elif isinstance(field, fields.DateTimeField): # deal with dates return value elif isinstance(field, fields.DateField): if not value: return None return datetime.date(value.year, value.month, value.day) elif isinstance(field, fields.TimeField): if not value: return None return datetime.time( value.hour, value.minute, value.second, value.microsecond, ) return value
def get_db_converters(self, expression): converters = super(DatabaseOperations, self).get_db_converters(expression) internal_type = expression.output_field.get_internal_type() if internal_type == 'DateTimeField': converters.append(self.convert_datetimefield_value) elif internal_type == 'DateField': converters.append(self.convert_datefield_value) elif internal_type == 'TimeField': converters.append(self.convert_timefield_value) elif internal_type == 'DecimalField': converters.append(self.convert_decimalfield_value) elif internal_type == 'UUIDField': converters.append(self.convert_uuidfield_value) return converters
def check_expression_support(self, expression): bad_fields = (fields.DateField, fields.DateTimeField, fields.TimeField) bad_aggregates = (aggregates.Sum, aggregates.Avg, aggregates.Variance, aggregates.StdDev) if isinstance(expression, bad_aggregates): try: output_field = expression.input_field.output_field if isinstance(output_field, bad_fields): raise NotImplementedError( 'You cannot use Sum, Avg, StdDev and Variance aggregations ' 'on date/time fields in sqlite3 ' 'since date/time is saved as text.') except FieldError: # not every sub-expression has an output_field which is fine to # ignore pass
def subtract_temporals(self, internal_type, lhs, rhs): lhs_sql, lhs_params = lhs rhs_sql, rhs_params = rhs if internal_type == 'TimeField': return "django_time_diff(%s, %s)" % (lhs_sql, rhs_sql), lhs_params + rhs_params return "django_timestamp_diff(%s, %s)" % (lhs_sql, rhs_sql), lhs_params + rhs_params
