[WIP] On create of notification. Upsert record for template stats

recording usages of template by day.

migrations/versions/0044_add_template_stats.py

@@ -0,0 +1,42 @@
+"""empty message
+
+Revision ID: 0044_add_template_stats
+Revises: 0043_add_view_activity
+Create Date: 2016-03-31 12:05:19.630792
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '0044_add_template_stats'
+down_revision = '0043_add_view_activity'
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('template_statistics',
+    sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
+    sa.Column('service_id', postgresql.UUID(as_uuid=True), nullable=False),
+    sa.Column('template_id', sa.BigInteger(), nullable=False),
+    sa.Column('usage_count', sa.BigInteger(), nullable=False),
+    sa.Column('day', sa.Date(), nullable=False),
+    sa.ForeignKeyConstraint(['service_id'], ['services.id'], ),
+    sa.ForeignKeyConstraint(['template_id'], ['templates.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_template_statistics_day'), 'template_statistics', ['day'], unique=False)
+    op.create_index(op.f('ix_template_statistics_service_id'), 'template_statistics', ['service_id'], unique=False)
+    op.create_index(op.f('ix_template_statistics_template_id'), 'template_statistics', ['template_id'], unique=False)
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_template_statistics_template_id'), table_name='template_statistics')
+    op.drop_index(op.f('ix_template_statistics_service_id'), table_name='template_statistics')
+    op.drop_index(op.f('ix_template_statistics_day'), table_name='template_statistics')
+    op.drop_table('template_statistics')
+    ### end Alembic commands ###