{
  "name": "Project Vectorization",
  "nodes": [
    {
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "minutes",
              "minutesInterval": 5
            }
          ]
        }
      },
      "id": "cron-node",
      "name": "Cron",
      "type": "n8n-nodes-base.cron",
      "typeVersion": 1.2,
      "position": [250, 300]
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "SELECT id, name, \"nameEn\", description, \"descriptionEn\", content, \"contentEn\"\nFROM \"projects\"\nWHERE \"embedding\" IS NULL\n  AND \"status\" = 'ACTIVE'\nLIMIT 20",
        "options": {}
      },
      "id": "postgres-query",
      "name": "查询未向量化项目",
      "type": "n8n-nodes-base.postgres",
      "typeVersion": 2.5,
      "position": [470, 300],
      "credentials": {
        "postgres": {
          "id": "NEON_DATABASE_CREDENTIAL_ID",
          "name": "Neon Database"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "// 为每个项目构造用于向量化的文本内容\nconst projects = $input.all();\n\nreturn projects.map(item => {\n  const project = item.json;\n\n  // 合并字段，按权重构造\n  const parts = [\n    project.name || '',\n    project.nameEn || '',\n    project.description || '',\n    project.descriptionEn || '',\n    (project.content || '').substring(0, 500),\n    (project.contentEn || '').substring(0, 500)\n  ].filter(Boolean);\n\n  const textContent = parts.join('\\n\\n');\n\n  return {\n    json: {\n      ...project,\n      textContent: textContent\n    }\n  };\n});"
      },
      "id": "construct-content",
      "name": "构造文本内容",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [690, 300]
    },
    {
      "parameters": {
        "batchSize": 5,
        "options": {}
      },
      "id": "split-batches",
      "name": "Split in Batches",
      "type": "n8n-nodes-base.splitInBatches",
      "typeVersion": 3,
      "position": [910, 300]
    },
    {
      "parameters": {
        "resource": "embedding",
        "model": "text-embedding-3-small",
        "input": "={{ $json.textContent }}",
        "options": {}
      },
      "id": "openai-embeddings",
      "name": "OpenAI Embeddings",
      "type": "@n8n/n8n-nodes-langchain.openai",
      "typeVersion": 1.4,
      "position": [1130, 300],
      "credentials": {
        "openaiApi": {
          "id": "OPENAI_CREDENTIAL_ID",
          "name": "OpenAI Embeddings"
        }
      }
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "=UPDATE \"projects\"\nSET\n  \"embedding\" = '{{ $json.data[0].embedding }}'::vector,\n  \"embeddingUpdatedAt\" = NOW()\nWHERE \"id\" = {{ $json.id }}",
        "options": {}
      },
      "id": "postgres-update",
      "name": "更新 Embedding",
      "type": "n8n-nodes-base.postgres",
      "typeVersion": 2.5,
      "position": [1350, 300],
      "credentials": {
        "postgres": {
          "id": "NEON_DATABASE_CREDENTIAL_ID",
          "name": "Neon Database"
        }
      }
    }
  ],
  "connections": {
    "Cron": {
      "main": [
        [
          {
            "node": "查询未向量化项目",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "查询未向量化项目": {
      "main": [
        [
          {
            "node": "构造文本内容",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "构造文本内容": {
      "main": [
        [
          {
            "node": "Split in Batches",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Split in Batches": {
      "main": [
        [
          {
            "node": "OpenAI Embeddings",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Embeddings": {
      "main": [
        [
          {
            "node": "更新 Embedding",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "更新 Embedding": {
      "main": [
        [
          {
            "node": "Split in Batches",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "pinData": {},
  "settings": {
    "executionOrder": "v1"
  },
  "staticData": null,
  "tags": [],
  "triggerCount": 0,
  "updatedAt": "2026-01-26T00:00:00.000Z",
  "versionId": "1"
}