Fix relationship, add github links, improve error messages

alembic/versions/c1f9ee875616_command_stats_github_links.py

@@ -1,8 +1,8 @@
-"""Command stats
+"""Command stats & GitHub links
 
-Revision ID: 3c94051821f8
+Revision ID: c1f9ee875616
 Revises: b84bb10fb8de
-Create Date: 2022-09-20 14:38:41.737628
+Create Date: 2022-09-20 17:18:02.289593
 
 """
 import sqlalchemy as sa
@@ -10,7 +10,7 @@ import sqlalchemy as sa
 from alembic import op
 
 # revision identifiers, used by Alembic.
-revision = "3c94051821f8"
+revision = "c1f9ee875616"
 down_revision = "b84bb10fb8de"
 branch_labels = None
 depends_on = None
@@ -23,15 +23,32 @@ def upgrade() -> None:
         sa.Column("command_stats_id", sa.Integer(), nullable=False),
         sa.Column("command", sa.Text(), nullable=False),
         sa.Column("timestamp", sa.DateTime(timezone=True), nullable=False),
-        sa.Column("user_id", sa.BigInteger(), nullable=False),
+        sa.Column("user_id", sa.BigInteger(), nullable=True),
         sa.Column("slash", sa.Boolean(), nullable=False),
         sa.Column("context_menu", sa.Boolean(), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["user_id"],
+            ["users.user_id"],
+        ),
         sa.PrimaryKeyConstraint("command_stats_id"),
     )
+    op.create_table(
+        "github_links",
+        sa.Column("github_link_id", sa.Integer(), nullable=False),
+        sa.Column("url", sa.Text(), nullable=False),
+        sa.Column("user_id", sa.BigInteger(), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["user_id"],
+            ["users.user_id"],
+        ),
+        sa.PrimaryKeyConstraint("github_link_id"),
+        sa.UniqueConstraint("url"),
+    )
     # ### end Alembic commands ###
 
 
 def downgrade() -> None:
     # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("github_links")
     op.drop_table("command_stats")
     # ### end Alembic commands ###