sgqlc.types.datetime module

GraphQL Types for datetime

Maps:

• datetime.time to GraphQL Time

• datetime.date to GraphQL Date

• datetime.datetime to GraphQL DateTime

You may either explicitly use this module classes or datetime, as they will be automatically recognized by the framework.

Conversions assume ISO 8601 encoding.

Examples

>>> from sgqlc.types import Type
>>> class MyDateTimeType(Type):
...     time1 = datetime.time
...     time2 = Time
...     date1 = datetime.date
...     date2 = Date
...     datetime1 = datetime.datetime
...     datetime2 = DateTime
...
>>> MyDateTimeType # or repr() to print out GraphQL
type MyDateTimeType {
  time1: Time
  time2: Time
  date1: Date
  date2: Date
  datetime1: DateTime
  datetime2: DateTime
}
>>> json_data = {
...     'time1': '12:34:56',
...     'time2': '12:34:56-03:00', # set timezone GMT-3h
...     'date1': '2018-01-02',
...     'date2': '20180102', # compact form is accepted
...     'datetime1': '2018-01-02T12:34:56Z', # Z = GMT/UTC
...     'datetime2': '20180102T123456-0300', # compact form is accepted
... }
>>> obj = MyDateTimeType(json_data)
>>> for field_name in obj: 
...     print(field_name, repr(obj[field_name]))
time1 datetime.time(12, 34, 56)
time2 datetime.time(12, 34, 56, tzinfo=...(...-1, ...75600)))
date1 datetime.date(2018, 1, 2)
date2 datetime.date(2018, 1, 2)
datetime1 datetime.datetime(2018, 1, 2, 12, 34, 56, tzinfo=....utc)
datetime2 datetime.datetime(2018, 1, 2, 12, 34, 56, tzinfo=...75600)))

Pre-converted types are allowed:

>>> json_data = { 'time1': datetime.time(12, 34, 56) }
>>> obj = MyDateTimeType(json_data)
>>> obj.time1
datetime.time(12, 34, 56)

However, invalid encoded strings are not:

>>> json_data = { 'time1': '12-3' }
>>> obj = MyDateTimeType(json_data)  
Traceback (most recent call last):
   ...
ValueError: MyDateTimeType selection 'time1': ...
>>> json_data = { 'date1': '12-3' }
>>> obj = MyDateTimeType(json_data)  
Traceback (most recent call last):
   ...
ValueError: MyDateTimeType selection 'date1': ...
>>> json_data = { 'datetime1': '2018-01-02X12-34-56Z' }
>>> obj = MyDateTimeType(json_data)  
Traceback (most recent call last):
   ...
ValueError: MyDateTimeType selection 'datetime1': ...

license:

ISC

class sgqlc.types.datetime.Date(json_data, selection_list=None)

Bases: Scalar

Date encoded as string using ISO8601 (YYYY-MM-SS)

While not a standard GraphQL type, it’s often used, so expose to make life simpler.

>>> Date('2018-01-02')
datetime.date(2018, 1, 2)
>>> Date('20180102') # compact form
datetime.date(2018, 1, 2)

Pre-converted values are allowed:

>>> Date(datetime.date(2018, 1, 2))
datetime.date(2018, 1, 2)

It can also serialize to JSON:

>>> Date.__to_json_value__(datetime.date(2018, 1, 2))
'2018-01-02'
>>> Date.__to_json_value__('2018-01-02')
'2018-01-02'
>>> Date.__to_json_value__(None)

class sgqlc.types.datetime.DateTime(json_data, selection_list=None)

Bases: Scalar

Date and Time encoded as string using ISO8601 (YYYY-mm-ddTHH:MM:SS[.mmm][+/-HH:MM])

While not a standard GraphQL type, it’s often used, so expose to make life simpler.

>>> DateTime('2018-01-02T12:34:56') # naive, no timezone
datetime.datetime(2018, 1, 2, 12, 34, 56)
>>> DateTime('2018-01-02T12:34:56Z') # Z = GMT/UTC
datetime.datetime(2018, 1, 2, 12, 34, 56, tzinfo=datetime.timezone.utc)
>>> DateTime('2018-01-02T12:34:56-05:30') 
datetime.datetime(2018, 1, 2, 12, 34, 56, tzinfo=..., ...70200)))
>>> DateTime('2018-01-02T12:34:56+05:30') 
datetime.datetime(2018, 1, 2, 12, 34, 56, tzinfo=...(...19800)))
>>> DateTime('20180102T123456') # compact form
datetime.datetime(2018, 1, 2, 12, 34, 56)
>>> DateTime('20180102T123456Z') # compact form, GMT/UTC
datetime.datetime(2018, 1, 2, 12, 34, 56, tzinfo=datetime.timezone.utc)
>>> DateTime('20180102T123456-0530') 
datetime.datetime(2018, 1, 2, 12, 34, 56, tzinfo=..., ...70200)))
>>> DateTime('20180102T123456+0530') 
datetime.datetime(2018, 1, 2, 12, 34, 56, tzinfo=...(...19800)))

Pre-converted values are allowed:

>>> DateTime(datetime.datetime(2018, 1, 2, 12, 34, 56))
datetime.datetime(2018, 1, 2, 12, 34, 56)

It can also serialize to JSON:

>>> dt = datetime.datetime(2018, 1, 2, 12, 34, 56)
>>> DateTime.__to_json_value__(dt)
'2018-01-02T12:34:56'
>>> DateTime.__to_json_value__('2018-01-02T12:34:56')
'2018-01-02T12:34:56'
>>> tzinfo = datetime.timezone.utc
>>> DateTime.__to_json_value__(dt.replace(tzinfo=tzinfo))
'2018-01-02T12:34:56+00:00'
>>> DateTime.__to_json_value__(None)

class sgqlc.types.datetime.Time(json_data, selection_list=None)

Bases: Scalar

Time encoded as string using ISO8601 (HH:MM:SS[.mmm][+/-HH:MM])

While not a standard GraphQL type, it’s often used, so expose to make life simpler.

>>> Time('12:34:56') # naive, no timezone
datetime.time(12, 34, 56)
>>> Time('12:34:56Z') # Z = GMT/UTC
datetime.time(12, 34, 56, tzinfo=datetime.timezone.utc)
>>> Time('12:34:56-05:30') 
datetime.time(12, 34, 56, tzinfo=...(...-1, ...70200)))
>>> Time('12:34:56+05:30') 
datetime.time(12, 34, 56, tzinfo=...(...19800)))
>>> Time('123456') # compact form
datetime.time(12, 34, 56)
>>> Time('123456Z') # compact form, GMT/UTC
datetime.time(12, 34, 56, tzinfo=datetime.timezone.utc)
>>> Time('123456-0530') 
datetime.time(12, 34, 56, tzinfo=...(...-1, ...70200)))
>>> Time('123456+0530') 
datetime.time(12, 34, 56, tzinfo=...(...19800)))

Pre-converted values are allowed:

>>> Time(datetime.time(12, 34, 56))
datetime.time(12, 34, 56)

It can also serialize to JSON:

>>> Time.__to_json_value__(datetime.time(12, 34, 56))
'12:34:56'
>>> tzinfo = datetime.timezone.utc
>>> Time.__to_json_value__(datetime.time(12, 34, 56, 0, tzinfo))
'12:34:56+00:00'
>>> Time.__to_json_value__('12:34:56')
'12:34:56'
>>> Time.__to_json_value__(None)