soft deletes available for applications and environments

- parent relation will not include applications or environments marked
  as deleted
- domain classes will exclude deleted objects from selections
- changed some test factories to use domain_word for resource names,
  because they were using person names and it bugged me

atst/models/application.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, ForeignKey, String
+from sqlalchemy import Column, ForeignKey, String, Boolean
 from sqlalchemy.orm import relationship
 
 from atst.models import Base
@@ -15,9 +15,15 @@ class Application(Base, mixins.TimestampsMixin, mixins.AuditableMixin):
 
     portfolio_id = Column(ForeignKey("portfolios.id"), nullable=False)
     portfolio = relationship("Portfolio")
-    environments = relationship("Environment", back_populates="application")
+    environments = relationship(
+        "Environment",
+        back_populates="application",
+        primaryjoin="and_(Environment.application_id==Application.id, Environment.deleted==False)",
+    )
     roles = relationship("ApplicationRole")
 
+    deleted = Column(Boolean, default=False)
+
     @property
     def users(self):
         return set(role.user for role in self.roles)

atst/models/environment.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, ForeignKey, String
+from sqlalchemy import Column, ForeignKey, String, Boolean
 from sqlalchemy.orm import relationship
 
 from atst.models import Base
@@ -17,6 +17,8 @@ class Environment(Base, mixins.TimestampsMixin, mixins.AuditableMixin):
 
     cloud_id = Column(String)
 
+    deleted = Column(Boolean, default=False)
+
     @property
     def users(self):
         return [r.user for r in self.roles]

atst/models/portfolio.py

@@ -16,7 +16,11 @@ class Portfolio(Base, mixins.TimestampsMixin, mixins.AuditableMixin):
     name = Column(String)
     defense_component = Column(String)  # Department of Defense Component
 
-    applications = relationship("Application", back_populates="portfolio")
+    applications = relationship(
+        "Application",
+        back_populates="portfolio",
+        primaryjoin="and_(Application.portfolio_id==Portfolio.id, Application.deleted==False)",
+    )
     roles = relationship("PortfolioRole")
 
     task_orders = relationship("TaskOrder")