Add patch for related links upstream issue

recipe/3ae4482-fix-related-links.patch

@@ -0,0 +1,86 @@
+diff --git a/flask_rest_jsonapi/resource.py b/flask_rest_jsonapi/resource.py
+index 5e417fc..34608b1 100644
+--- a/flask_rest_jsonapi/resource.py
++++ b/flask_rest_jsonapi/resource.py
+@@ -302,23 +302,14 @@ class ResourceRelationship(with_metaclass(ResourceMeta, Resource)):
+         self.before_get(args, kwargs)
+
+         relationship_field, model_relationship_field, related_type_, related_id_field = self._get_relationship_data()
+-        related_view = self.schema._declared_fields[relationship_field].related_view
+-        related_view_kwargs = self.schema._declared_fields[relationship_field].related_view_kwargs
+
+         obj, data = self._data_layer.get_relationship(model_relationship_field,
+                                                       related_type_,
+                                                       related_id_field,
+                                                       kwargs)
+
+-        for key, value in copy(related_view_kwargs).items():
+-            if isinstance(value, str) and value.startswith('<') and value.endswith('>'):
+-                tmp_obj = obj
+-                for field in value[1:-1].split('.'):
+-                    tmp_obj = getattr(tmp_obj, field)
+-                related_view_kwargs[key] = tmp_obj
+-
+         result = {'links': {'self': request.path,
+-                            'related': url_for(related_view, **related_view_kwargs)},
++                            'related': self.schema._declared_fields[relationship_field].get_related_url(obj)},
+                   'data': data}
+
+         qs = QSManager(request.args, self.schema)
+diff --git a/tests/test_sqlalchemy_data_layer.py b/tests/test_sqlalchemy_data_layer.py
+index e2f1b3f..dbddd1b 100644
+--- a/tests/test_sqlalchemy_data_layer.py
++++ b/tests/test_sqlalchemy_data_layer.py
+@@ -2,12 +2,11 @@
+
+ from six.moves.urllib.parse import urlencode
+ import pytest
+-import json
+
+ from sqlalchemy import create_engine, Column, Integer, DateTime, String, ForeignKey
+ from sqlalchemy.orm import sessionmaker, relationship
+ from sqlalchemy.ext.declarative import declarative_base
+-from flask import Blueprint, make_response
++from flask import Blueprint, make_response, json
+ from marshmallow_jsonapi.flask import Schema, Relationship
+ from marshmallow_jsonapi import fields
+ from marshmallow import ValidationError
+@@ -138,6 +137,8 @@ def computer_schema():
+         id = fields.Str(dump_only=True)
+         serial = fields.Str(required=True)
+         owner = Relationship(attribute='person',
++                             default=None,
++                             missing=None,
+                              related_view='api.person_detail',
+                              related_view_kwargs={'person_id': '<person.person_id>'},
+                              schema='PersonSchema',
+@@ -602,9 +603,20 @@ def test_get_relationship_single_empty(session, client, register_routes, compute
+     with client:
+         response = client.get('/computers/' + str(computer.id) + '/relationships/owner',
+                               content_type='application/vnd.api+json')
++        response_json = json.loads(response.get_data())
++        assert None is response_json['data']
+         assert response.status_code == 200
+
+
++def test_issue_49(session, client, register_routes, person, person_2):
++    with client:
++        for p in [person, person_2]:
++            response = client.get('/persons/' + str(p.person_id) + '/relationships/computers?include=computers',
++                                  content_type='application/vnd.api+json')
++            assert response.status_code == 200
++            assert (json.loads(response.get_data()))['links']['related'] == '/persons/' + str(p.person_id) + '/computers'
++
++
+ def test_post_relationship(client, register_routes, computer, person):
+     payload = {
+         'data': [
+@@ -691,7 +703,7 @@ def test_delete_relationship(session, client, register_routes, computer, person)
+
+ def test_delete_relationship_single(session, client, register_routes, computer, person):
+     session_ = session
+-    computer.owner = person
++    computer.person = person
+     session_.commit()
+
+     payload = {

recipe/meta.yaml

@@ -10,9 +10,11 @@ source:
   fn: {{ name }}-{{ version }}.tar.gz
   url: https://github.com/miLibris/{{ name }}/archive/{{ version }}.tar.gz
   sha256: {{ sha256 }}
+  patches:
+      - 3ae4482-fix-related-links.patch
 
 build:
-  number: 0
+  number: 1
   script: python setup.py install --single-version-externally-managed --record record.txt
 
 requirements: