modify schema primary keys to be nullable+defaulted

This fixes SQLAlchemy warnings related to primary keys not
having an auto_increment or nullable.

We've done this by making all foreign primary keys nullable.

In ApiRateLimit's case, we can set a default str to act as
a null, which seems a bit more sensible.

Signed-off-by: Kevin Morris <kevr@0cost.org>

aurweb/models/package_group.py

@@ -1,4 +1,5 @@
 from sqlalchemy.orm import mapper
+from sqlalchemy.exc import IntegrityError
 
 from aurweb.db import make_relationship
 from aurweb.models.group import Group
@@ -9,7 +10,18 @@ from aurweb.schema import PackageGroups
 class PackageGroup:
     def __init__(self, Package: Package = None, Group: Group = None):
         self.Package = Package
+        if not self.Package:
+            raise IntegrityError(
+                statement="Primary key PackageID cannot be null.",
+                orig="PackageGroups.PackageID",
+                params=("NULL"))
+
         self.Group = Group
+        if not self.Group:
+            raise IntegrityError(
+                statement="Primary key GroupID cannot be null.",
+                orig="PackageGroups.GroupID",
+                params=("NULL"))
 
 
 properties = {

aurweb/models/package_keyword.py

@@ -1,4 +1,5 @@
 from sqlalchemy.orm import mapper
+from sqlalchemy.exc import IntegrityError
 
 from aurweb.db import make_relationship
 from aurweb.models.package_base import PackageBase
@@ -10,6 +11,12 @@ class PackageKeyword:
                  PackageBase: PackageBase = None,
                  Keyword: str = None):
         self.PackageBase = PackageBase
+        if not self.PackageBase:
+            raise IntegrityError(
+                statement="Primary key PackageBaseID cannot be null.",
+                orig="PackageKeywords.PackageBaseID",
+                params=("NULL"))
+
         self.Keyword = Keyword
 
 

aurweb/models/package_license.py

@@ -1,4 +1,5 @@
 from sqlalchemy.orm import mapper
+from sqlalchemy.exc import IntegrityError
 
 from aurweb.db import make_relationship
 from aurweb.models.license import License
@@ -9,7 +10,18 @@ from aurweb.schema import PackageLicenses
 class PackageLicense:
     def __init__(self, Package: Package = None, License: License = None):
         self.Package = Package
+        if not self.Package:
+            raise IntegrityError(
+                statement="Primary key PackageID cannot be null.",
+                orig="PackageLicenses.PackageID",
+                params=("NULL"))
+
         self.License = License
+        if not self.License:
+            raise IntegrityError(
+                statement="Primary key LicenseID cannot be null.",
+                orig="PackageLicenses.LicenseID",
+                params=("NULL"))
 
 
 properties = {
@@ -21,6 +33,8 @@ properties = {
                                  PackageLicenses.c.LicenseID,
                                  "package_license",
                                  uselist=False)
+
+
 }
 
 mapper(PackageLicense, PackageLicenses, properties=properties,