Merge pull request #4 from octue/v0.0.2

V0.0.2

.travis.yml

@@ -4,7 +4,6 @@ language: python
 
 services:
   - postgresql
-  - mysql
 
 addons:
   postgresql: "11"
@@ -35,11 +34,10 @@ install:
   - pip install tox-travis
   - pip install codecov
 
-# Create MySQL and Postgres databases
+# CreatePostgres database
 before_script:
   - psql --version
   - psql -c 'CREATE DATABASE travis_ci_test;' -U postgres
-  - mysql -e 'CREATE DATABASE IF NOT EXISTS travis_ci_test;' -uroot
 
 # Run the tests with tox
 script:
@@ -50,7 +48,7 @@ after_success:
   - coverage xml && codecov -f coverage.xml --commit=$TRAVIS_COMMIT
 
 # Will deploy to pypi if the version in setup.py has been bumped, otherwise deployment skips.
-#  Note - the first deploy to pypi has to be done manually)
+#  Note - the first deploy to pypi has to be done manually
 #    deploy:
 #      provider: pypi
 #      skip_cleanup: true

django_dag_cte/models.py

@@ -15,7 +15,7 @@ class AbstractNode(models.Model):
     node_id = AutoField(primary_key=True)
 
     # Parents-Children relationship (the `children` strand) using a Directed Acyclic Graph
-    parents = models.ManyToManyField('self', related_name='children', symmetrical=False)
+    parents = models.ManyToManyField('self', related_name='children', symmetrical=False, blank=True)
 
     # TODO implement the recursive view for closure and ancestry
     # Note this creates an unmanaged `*Closure` table which is a table view, unmanaged by Django.

setup.py

@@ -18,7 +18,7 @@
 
 setup(
     name='django_dag_cte',
-    version='0.0.1',
+    version='0.0.2',
     description='Directed Acyclic Graphs with in-database recursion using Common Table Expressions',
     long_description=readme_text,
     long_description_content_type="text/markdown",
@@ -38,7 +38,7 @@
     ],
     include_package_data=True,
     install_requires=[
-        'django>=2.1',
+        'django>=2.2',
         'django-cte>=1.1.4',
     ],
     keywords=['django', 'recursion', 'recursive', 'directed', 'acyclic', 'graph', 'dag', 'postgres', 'cte']