有没有办法取代loopbackjs中的内置模型端点方法？

我试图替换用户模型的内置Create方法，添加一些额外的自定义逻辑，并根据需要重新格式化响应数据。有什么办法吗

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提前感谢

您需要申报新型号。然后，手动添加一个

base

属性，使其从内置用户模型继承

/common/models/custom user.json

{
  "name": "customUser",
  "base": "User",
  "options": {
    "idInjection": false,
    "postgresql": {
      "schema": "public",
      "table": "user"
    }
  },
  "dataSource": "mypostgresDS",
  "properties": {
    "id": {
      "type": "number",
      "postgresql": {
        "columnName": "id",
        "dataType": "integer"
      }
    }
   ...
   ...
   }
}

然后可以覆盖上的内置管线

/common/models/custom user.js

module.exports = function (customUser) {

    // avoid looking for properties that your new model doesn't have
    var excludedProperties = [
        'realm',
        'emailVerified',
        'verificationToken',
        'credentials',
        'challenges',
        'lastUpdated',
        'created'
    ];

    // Remove the properties from base User model that doesn't have mapped columns
    excludedProperties.forEach(function (p) {
        delete customUser.definition.rawProperties[p];
        delete customUser.definition.properties[p];
        delete customUser.prototype[p];
    });

    customUser.prototype.createAccessToken = function (ttl, cb) {
        var user = this;
        if (ttl === undefined) ttl = 259200;
        var timenow = new Date().toISOString();
        console.log('ttl will be ', ttl, ' current time is ' + timenow);
        user.accessTokens.create({
            ttl: ttl
        }, cb);
    };


    customUser.prototype.checkPassword = function (password, stored_hash) {
        var user = this;
        console.log('I will overwrite this check to always return true');
        return true;
    };
});

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我会试试看，然后告诉你结果