Add Request.internal_comments

Using a one to one relationship to avoid the migration hell
that we're temporarily stuck in.

alembic/versions/2572be7fb7fc_add_request_internal_comments.py

@@ -0,0 +1,36 @@
+"""add request.internal_comments
+
+Revision ID: 2572be7fb7fc
+Revises: dea6b8e09d63
+Create Date: 2018-09-11 15:28:27.252248
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '2572be7fb7fc'
+down_revision = 'dea6b8e09d63'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('request_internal_comments',
+    sa.Column('id', sa.BigInteger(), nullable=False),
+    sa.Column('text', sa.String(), nullable=True),
+    sa.Column('user_id', postgresql.UUID(as_uuid=True), nullable=False),
+    sa.Column('request_id', postgresql.UUID(as_uuid=True), nullable=True),
+    sa.ForeignKeyConstraint(['request_id'], ['requests.id'], ondelete='CASCADE'),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('request_internal_comments')
+    # ### end Alembic commands ###

atst/models/__init__.py

@@ -16,3 +16,4 @@ from .environment import Environment
 from .attachment import Attachment
 from .request_revision import RequestRevision
 from .request_review import RequestReview
+from .request_internal_comment import RequestInternalComment

atst/models/request.py

@@ -46,6 +46,8 @@ class Request(Base):
         "RequestRevision", back_populates="request", order_by="RequestRevision.sequence"
     )
 
+    internal_comments = relationship("RequestInternalComment", uselist=False)
+
     @property
     def latest_revision(self):
         if self.revisions:

atst/models/request_internal_comment.py

@@ -0,0 +1,16 @@
+from sqlalchemy import Column, BigInteger, String, ForeignKey
+from sqlalchemy.orm import relationship
+
+from atst.models import Base
+
+
+class RequestInternalComment(Base):
+    __tablename__ = "request_internal_comments"
+
+    id = Column(BigInteger, primary_key=True)
+    text = Column(String())
+
+    user_id = Column(ForeignKey("users.id"), nullable=False)
+    user = relationship("User")
+
+    request_id = Column(ForeignKey("requests.id", ondelete="CASCADE"))