feat: gene page — search a gene, see its eQTLs across tissues#21
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Closes #5. Advances #4 (search) and #9 (name resolution). - repository.py: Gene + ensembl_number() (ENSG -> integer shard key) + resolve_gene() on the interface, fake, and real repos (queries gencode_v26_hg38); eQTL fan-out now reuses one DB connection. - web.py: create_app() takes a repository (DI); GET /search parses the query and routes gene symbols/Ensembl ids to GET /gene/{name}; the gene page joins tissue names and renders the eQTL table. - templates: search box on the landing page; gene.html; not_found.html. - Verified end-to-end against the live DB (read-only): "TP53" -> gene 141510 -> real GTEx eQTLs across tissues. beta direction is shown-without-interpretation per #18. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
The first real user-facing feature (issue #5): search a gene symbol or Ensembl id and see its eQTLs across tissues.
resolve_gene()maps symbol/Ensembl →gencode_v26_hg38→ the integer shard key (ensembl_number:ENSG00000141510→141510).GET /search?q=parses the query (wiring insearch.py) and redirects gene queries toGET /gene/{name}.gene.html/not_found.html.Why
Turns the skeleton + data layer into a working portal slice. Built against the
QtlRepositoryinterface, so routes are tested with a fake and run on the real DB unchanged.How it was tested
ruff,ruff format,mypy --strict,pytestgreen; 100% coverage. Routes tested via an injected fake repo. Verified end-to-end against the live DB (read-only):resolve_gene('TP53')→ gene 141510 → real GTEx eQTLs across tissues.Notes / follow-ups
Checklist
Closes #5.