Ported in logic from upstream to use SQLAlchemy eager loading instead
of repeated queries when building a submission_listing. Adjusted
loaded relationships to include only those used on TheMotte.
Using test data from seed_db, before and after:
GET /
|----------|--------|--------|--------|--------|--------|------------|
| Database | SELECT | INSERT | UPDATE | DELETE | Totals | Duplicates |
|----------|--------|--------|--------|--------|--------|------------|
| default | 83 | 0 | 0 | 0 | 83 | 72 |
|----------|--------|--------|--------|--------|--------|------------|
Total queries: 83 in 0.031s
GET /
|----------|--------|--------|--------|--------|--------|------------|
| Database | SELECT | INSERT | UPDATE | DELETE | Totals | Duplicates |
|----------|--------|--------|--------|--------|--------|------------|
| default | 14 | 0 | 0 | 0 | 14 | 0 |
|----------|--------|--------|--------|--------|--------|------------|
Total queries: 14 in 0.00718s
4d22d9bce2