Question

我在MYSQL上有一个名为Xml_Mapping的表，其中包含复合ID。当我尝试插入表格;在运行时或从StrongLoop API Explorer中，我无法插入。

当我调试时，我看到错误的插入sql：

    INSERT INTO `Xml_Mapping`(`SiteId`,`SystemKeyId`,`TargetKey`) VALUES(1,1,'stockcode') 
    ON DUPLICATE KEY UPDATE

正如您所见，＆＃34;更新＆＃34; sql没有完成。所以它无法执行......

我该如何解决这个问题？

Xml_Mapping表：

    SiteId INT NOT NULL,
    SystemKeyId INT NOT NULL,
    TargetKey VARCHAR(100) NOT NULL,
    PRIMARY KEY (SiteId, SystemKeyId, TargetKey),
    CONSTRAINT XML_MAPPING_fk1 FOREIGN KEY (SiteId) REFERENCES site (Id),
    INDEX XML_MAPPING_fk1 (SiteId)

Xml-mapping.json：

{
  "name": "XmlMapping",
  "base": "PersistedModel",
  "idInjection": false,
  "options": {
    "validateUpsert": true
  },
  "mysql": {
    "schema": "uygunca",
    "table": "Xml_Mapping"
  },
  "properties": {
    "SiteId": {
      "type": "Number",
      "id": 1,
      "required": true,
      "length": null,
      "precision": 10,
      "scale": 0,
      "mysql": {
        "columnName": "SiteId",
        "dataType": "int",
        "dataLength": null,
        "dataPrecision": 10,
        "dataScale": 0,
        "nullable": "N"
      },
      "_selectable": false
    },
    "SystemKeyId": {
      "type": "Number",
      "id": 2,
      "required": true,
      "length": null,
      "precision": 10,
      "scale": 0,
      "mysql": {
        "columnName": "SystemKeyId",
        "dataType": "int",
        "dataLength": null,
        "dataPrecision": 10,
        "dataScale": 0,
        "nullable": "N"
      },
      "_selectable": false
    },
    "TargetKey": {
      "type": "String",
      "id": 3,
      "required": true,
      "length": 100,
      "precision": null,
      "scale": null,
      "mysql": {
        "columnName": "TargetKey",
        "dataType": "varchar",
        "dataLength": 100,
        "dataPrecision": null,
        "dataScale": null,
        "nullable": "N"
      },
      "_selectable": false
    }
  },
  "validations": [],
  "relations": {},
  "acls": [],
  "methods": []
}

Answer 1

更改表 Xml_Mapping 并为字段 SiteId 设置自动增量 并且您不需要在JSON中提供 SiteId

运行

ALTER TABLE `Xml_Mapping`
MODIFY `SiteId` int(10) NOT NULL AUTO_INCREMENT

更改您的模型 Xml-mapping.json：并设置 SiteId ＆＃34;必需＆＃34;：false，它应该像

{ "name": "XmlMapping", "base": "PersistedModel", "idInjection": false, "options": { "validateUpsert": true }, "mysql": { "schema": "uygunca", "table": "Xml_Mapping" }, "properties": { "SiteId": { "type": "Number", "id": 1, "required": false, "length": null, "precision": 10, "scale": 0, "mysql": { "columnName": "SiteId", "dataType": "int", "dataLength": null, "dataPrecision": 10, "dataScale": 0, "nullable": "N" }, "_selectable": false }, "SystemKeyId": { "type": "Number", "id": 2, "required": true, "length": null, "precision": 10, "scale": 0, "mysql": { "columnName": "SystemKeyId", "dataType": "int", "dataLength": null, "dataPrecision": 10, "dataScale": 0, "nullable": "N" }, "_selectable": false }, "TargetKey": { "type": "String", "id": 3, "required": true, "length": 100, "precision": null, "scale": null, "mysql": { "columnName": "TargetKey", "dataType": "varchar", "dataLength": 100, "dataPrecision": null, "dataScale": null, "nullable": "N" }, "_selectable": false } }, "validations": [], "relations": {}, "acls": [], "methods": [] }

然后将您的JSON用作

{ "SystemKeyId": 1, "TargetKey": 'stockcode' }

插入不适用于环回

1 个答案: