{"record":{"id":"aebd82c90a3ab2f1","repo":"Crosstalk-Solutions/project-nomad","slug":"failed-to-create-chat-session","errorCode":null,"errorMessage":"Failed to create chat session","messagePattern":"Failed to create chat session","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"admin/app/services/chat_service.ts","lineNumber":153,"sourceCode":"\n  async createSession(title: string, model?: string) {\n    try {\n      const session = await ChatSession.create({\n        title,\n        model: model || null,\n      })\n\n      return {\n        id: session.id.toString(),\n        title: session.title,\n        model: session.model,\n        timestamp: session.created_at.toJSDate(),\n      }\n    } catch (error) {\n      logger.error(\n        `[ChatService] Failed to create session: ${error instanceof Error ? error.message : error}`\n      )\n      throw new Error('Failed to create chat session')\n    }\n  }\n\n  async updateSession(sessionId: number, data: { title?: string; model?: string }) {\n    try {\n      const session = await ChatSession.findOrFail(sessionId)\n\n      if (data.title) {\n        session.title = data.title\n      }\n      if (data.model !== undefined) {\n        session.model = data.model\n      }\n\n      await session.save()\n\n      return {\n        id: session.id.toString(),","sourceCodeStart":135,"sourceCodeEnd":171,"githubUrl":"https://github.com/Crosstalk-Solutions/project-nomad/blob/0bd1c6f4f9888d577fe232de06ac144bb8337131/admin/app/services/chat_service.ts#L135-L171","documentation":"ChatService.createSession swallows the original database error and rethrows this opaque message after logging it. It means creating the chat session row via Lucid/AdonisJS failed — typically a DB connection problem or a NOT NULL/constraint violation on the chat_sessions table.","triggerScenarios":"POSTing a new chat session while the database is unreachable, the chat_sessions migration hasn't run (missing table), or ChatSession.create receives undefined for a required column (e.g. a defaulted title/model column not present in the schema).","commonSituations":"Forgot to run migrations in a fresh environment, DB credentials/host misconfigured in .env, database container not started, or a schema change (new NOT NULL column) deployed without a migration.","solutions":["Check the server log for '[ChatService] Failed to create session: <cause>' — the real DB error is there","Run node ace migration:run to ensure chat_sessions exists and matches the model","Verify DB connection env vars (DB_HOST, DB_PORT, DB_USER, DB_PASSWORD, DB_DATABASE) and that the DB server is up","If a new required column was added to the model, add a default or a migration backfill","Set { cause: error } on the rethrow so callers see the underlying failure"],"exampleFix":"// before\nthrow new Error('Failed to create chat session')\n\n// after\nthrow new Error('Failed to create chat session', { cause: error })","handlingStrategy":"try-catch","validationCode":"await db.rawQuery('SELECT 1') // confirm DB reachable before opening a chat session","typeGuard":null,"tryCatchPattern":"try { const s = await chat.createSession(...) } catch (e) { if (e instanceof Error && e.message === 'Failed to create chat session') { notifyUser('Chat unavailable'); return } throw e }","preventionTips":["Run migrations as part of deployment","Validate DB env vars at boot and fail fast","Wrap rethrows with { cause } so the DB error reaches callers","Add a lightweight DB health check before chat features are used"],"tags":["chat","database","adonisjs","lucid","create"],"backgroundTag":"database-query-failed","analyzedSha":"0bd1c6f4f9888d577fe232de06ac144bb8337131","analyzedAt":"2026-08-27T05:34:15.424Z","schemaVersion":2},"datasetVersion":"2026-08-27T08:17:20.692Z"}