Question

问题的性质

我的db2数据库广泛使用表模式进行组织，所以有问题的表是LIVE.TBLADDRESS -

我的模型使用“选项”来指定表架构

"options": {
    "idInjection": false,
    "db2": {
        "schema": "LIVE",
        "table": "TBLADDRESS"
    }
}

模型使用

在model-config.json中

,"Tbladdress": {
    "dataSource": "x3",
    "public": true
}

当我尝试使用资源管理器执行简单的“获取”或任何其他API调用时，出现错误。

"statusCode": 500,
"name": "Error",
"message": "[IBM][CLI Driver][DB2/LINUXX8664] SQL0204N "DB2X.TBLADDRESS" is an undefined name. SQLSTATE=42704\r\n",

预期行为

一旦我指定了架构 - 我希望API能够正确解析

实际行为

始终使用db user的默认架构...无论选项中指定的架构如何。

建议的解决方案

也许我把它放在错误的地方，我会继续寻找信息，我可能会遗漏一些东西。

这就是我使用数据库查看器“看到”...所以你知道我指的是什么。

DEV - host:50000/DEV
-schemas
|-AAA
|-BBB
|-DB2X (this is the schema that the error is referring to...but NOT the one specified in the model)
|-DDD
|-LIVE (this is the correct schema)
|--Tables
|--|-TBLA
|--|-TBLADDRESS
|-ZZZ

如果有帮助 - 手动创建发现脚本生成的模型或模型就会发生这种情况。

这些是我的配置文件和模型

/common/models/Tbladdress.json

{
    "name": "Tbladdress",
    "options": {
        "idInjection": false,
        "db2": {
            "schema": "LIVE",
            "table": "TBLADDRESS"
        }
    },
    "properties": {
        ...
    }
}

/datasources.json

{
    "db": {
        "name": "db",
        "connector": "memory"
    },
    "x3": {
        "name": "x3",
        "connector": "db2",
        "username": "...",
        "password": "...",
        "database": "...",
        "hostname": "...",
        "port":     50000
    }
}

/model-config.json

{
    "_meta": {
    ...
    },
    "User": {
        "dataSource": "db"
    },
    "AccessToken": {
        "dataSource": "db",
        "public": false
    },
    "ACL": {
        "dataSource": "db",
        "public": false
    },
    "RoleMapping": {
        "dataSource": "db",
        "public": false,
        "options": {
            "strictObjectIDCoercion": true
        }
    },
    "Role": {
        "dataSource": "db",
        "public": false
    }

    ,"Tbladdress": {
        "dataSource": "x3",
        "public": true
    }

}

http://localhost:3000/explorer/#!/Tbladdress/Tbladdress_findById

{
    "error": {
        "statusCode": 500,
        "name": "Error",
        "message": "[IBM][CLI Driver][DB2/LINUXX8664] SQL0204N  \"DB2X.TBLADDRESS\" is an undefined name.  SQLSTATE=42704\r\n",
        "errors": [],
        "error": "[node-ibm_db] SQL_ERROR",
        "state": "42S02",
        "stack": "Error: [IBM][CLI Driver][DB2/LINUXX8664] SQL0204N  \"DB2X.TBLADDRESS\" is an undefined name.  SQLSTATE=42704\r\n"
    }
}

...接头...

{
    "date": "Sun, 18 Feb 2018 05:20:36 GMT",
    "x-content-type-options": "nosniff",
    "x-download-options": "noopen",
    "x-frame-options": "DENY",
    "content-type": "application/json; charset=utf-8",
    "transfer-encoding": "chunked",
    "connection": "keep-alive",
    "access-control-allow-credentials": "true",
    "vary": "Origin, Accept-Encoding",
    "x-xss-protection": "1; mode=block"
}

是：

loopback-cli v3 生成快速应用

loopback-connector-db2 连接到DB2 v10

节点v8.9.2

Package.JSON依赖项看起来像这样（如上所述它是一个默认安装，添加了一个模型 - 看看我是否可以让它工作）

"dependencies": {
    "compression": "^1.0.3",
    "cors": "^2.5.2",
    "helmet": "^1.3.0",
    "loopback": "^3.0.0",
    "loopback-boot": "^2.6.5",
    "loopback-component-explorer": "^5.0.0",
    "loopback-connector-db2": "^2.1.1",
    "serve-favicon": "^2.0.1",
    "strong-error-handler": "^2.0.0"

}，

是的 - 当我在数据发现中指定“LIVE”架构时，DB2连接器工作正常 - 但是当我使用API时它似乎不起作用。我不知道它是连接器还是环回应用程序。

Answer 1

对于loopback-connector-db2，您必须在SCHEMA配置文件中定义datasources.json。

{
  "x3": {
    "name": "x3",
    "connector": "db2",
    "username": "...",
    "password": "...",
    "database": "...",
    "hostname": "...",
    "port":     50000
  },
  "x3Live": {
    "name": "x3Live",
    "connector": "db2",
    "schema": "LIVE",
    "username": "...",
    "password": "...",
    "database": "...",
    "hostname": "...",
    "port":     50000
  }
}

不幸的是，您需要创建一个新的数据源（例如x3Live）。使用x3模式的旧DB2X数据源和使用x3Live模式的模型的新LIVE数据源。

loopback w / table schemas，而不是标识选项

1 个答案: