Question

automigrate.js正常工作并在我的postgres数据库中创建食物表，但“真实”类型在我的数据库中映射为“整数”类型。我想要映射到“数组”类型的“过敏原”被映射到整数。错误在哪里？我需要改变什么？我按照this tutorial

进行操作

这是我的model.js

   {
  "name": "Food",
  "base": "PersistedModel",
  "idInjection": true,
  "options": {
    "validateUpsert": true
  },
  "properties": {
    "name": {
      "type": "string",
      "required": true,
      "postgres": {
        "columnName": "name",
        "dataType": "CHARACTER VARYING",
        "dataLength": 50,
        "dataPrecision": null,
        "dataScale": null,
        "nullable": "NO"
      }
    },
    "carbs": {
      "type": "number",
      "dataType": "real",
      "precision": 10,
      "scale": 2,
      "required": true,
      "postgresql": {
        "columnName": "carbs",
        "dataType": "real",
        "dataLength": null,
        "dataPrecision": 10,
        "dataScale": 2,
        "nullable": "NO"
      }
    },
    "fats": {
      "type": "number",
      "dataType": "REAL",
      "precision": 10,
      "scale": 2,
      "required": true,
      "postgres": {
        "columnName": "fats",
        "dataType": "REAL",
        "dataLength": 50,
        "dataPrecision": 10,
        "dataScale": 2,
        "nullable": "NO"
      }
    },
    "proteins": {
      "type": "number",
      "dataType": "REAL",
      "precision": 10,
      "scale": 2,
      "required": true,
      "postgres": {
        "columnName": "proteins",
        "dataType": "REAL",
        "dataLength": 50,
        "dataPrecision": 10,
        "dataScale": 2,
        "nullable": "NO"
      }
    },
    "allergens": {
      "type": ["object"]
    },
    "style": {
      "type": "object",
      "postgres": {
        "columnName": "style",
        "dataType": "CHARACTER VARYING",
        "dataLength": 50,
        "dataPrecision": null,
        "dataScale": null,
        "nullable": "NO"
      }
    }
  },
  "validations": [],
  "relations": {},
  "acls": [],
  "methods": {}
}

这是我的automigrate.js

'use strict';

var app = require('../server');
var dataSource = app.dataSources.softNutritionDB;

dataSource.automigrate('Food', function(err) {
  if (err) throw err;
  dataSource.disconnect();
});

Answer 1

更改

"allergens": {
   "type": ["object"]
 },

要，

"allergens": {
   "type": "object"
    "postgres": {
      "dataType": "json"
    }
 },

我将创建一个json列。

这应该有效，但理想情况下，根据规范化规则，您应该创建另一个表来存储过敏原映射。

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