add PackageRequest SQLAlchemy ORM model

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

aurweb/models/package_request.py

@@ -0,0 +1,93 @@
+from sqlalchemy import Column, ForeignKey, Integer
+from sqlalchemy.exc import IntegrityError
+from sqlalchemy.orm import backref, relationship
+
+import aurweb.models.package_base
+import aurweb.models.request_type
+import aurweb.models.user
+
+from aurweb.models.declarative import Base
+
+
+class PackageRequest(Base):
+    __tablename__ = "PackageRequests"
+
+    ID = Column(Integer, primary_key=True)
+
+    ReqTypeID = Column(
+        Integer, ForeignKey("RequestTypes.ID", ondelete="NO ACTION"),
+        nullable=False)
+    RequestType = relationship(
+        "RequestType", backref=backref("package_requests", lazy="dynamic"),
+        foreign_keys=[ReqTypeID])
+
+    UsersID = Column(Integer, ForeignKey("Users.ID", ondelete="SET NULL"))
+    User = relationship(
+        "User", backref=backref("package_requests", lazy="dynamic"),
+        foreign_keys=[UsersID])
+
+    PackageBaseID = Column(
+        Integer, ForeignKey("PackageBases.ID", ondelete="SET NULL"),
+        nullable=False)
+    PackageBase = relationship(
+        "PackageBase", backref=backref("requests", lazy="dynamic"),
+        foreign_keys=[PackageBaseID])
+
+    ClosedUID = Column(Integer, ForeignKey("Users.ID", ondelete="SET NULL"))
+    Closer = relationship(
+        "User", backref=backref("closed_requests", lazy="dynamic"),
+        foreign_keys=[ClosedUID])
+
+    __mapper_args__ = {"primary_key": [ID]}
+
+    def __init__(self,
+                 RequestType: aurweb.models.request_type.RequestType = None,
+                 PackageBase: aurweb.models.package_base.PackageBase = None,
+                 PackageBaseName: str = None,
+                 User: aurweb.models.user.User = None,
+                 Comments: str = None,
+                 ClosureComment: str = None,
+                 **kwargs):
+        super().__init__(**kwargs)
+
+        self.RequestType = RequestType
+        if not self.RequestType:
+            raise IntegrityError(
+                statement="Foreign key ReqTypeID cannot be null.",
+                orig="PackageRequests.ReqTypeID",
+                params=("NULL"))
+
+        self.PackageBase = PackageBase
+        if not self.PackageBase:
+            raise IntegrityError(
+                statement="Foreign key PackageBaseID cannot be null.",
+                orig="PackageRequests.PackageBaseID",
+                params=("NULL"))
+
+        self.PackageBaseName = PackageBaseName
+        if not self.PackageBaseName:
+            raise IntegrityError(
+                statement="Column PackageBaseName cannot be null.",
+                orig="PackageRequests.PackageBaseName",
+                params=("NULL"))
+
+        self.User = User
+        if not self.User:
+            raise IntegrityError(
+                statement="Foreign key UsersID cannot be null.",
+                orig="PackageRequests.UsersID",
+                params=("NULL"))
+
+        self.Comments = Comments
+        if self.Comments is None:
+            raise IntegrityError(
+                statement="Column Comments cannot be null.",
+                orig="PackageRequests.Comments",
+                params=("NULL"))
+
+        self.ClosureComment = ClosureComment
+        if self.ClosureComment is None:
+            raise IntegrityError(
+                statement="Column ClosureComment cannot be null.",
+                orig="PackageRequests.ClosureComment",
+                params=("NULL"))