如何在Meteor中自定义验证simple-schema中检查boolean是否为true

Question

我有以下架构：

Games.attachSchema(new SimpleSchema({
    title: {
        type: String,
        label: "Title",
        max: 30
    },
    multiplayer: {
        type: Boolean,
        label: "Multiplayer",
        denyUpdate: true
    },
    description: {
        type: String,
        label: "Description",
        custom: function() {
            var multiplayer = this.field("multiplayer");
            if (multiplayer.isSet && multiplayer.value && !this.isSet) return "Description is empty!";
            return true;
        }
    }
}));

我的目标是检查description是否为空，但仅当选中了multiplayer复选框时。如果未选中该复选框，则不应强制description填写。

我尝试了上面的代码，但它没有验证。即使我没有说明并且我选中了复选框，我也可以提交表格。

Answer 1

我认为问题在于您的验证逻辑。尝试将其更改为：

if (multiplayer.isSet && multiplayer.value && this.isSet && this.value == "")
return "Description is empty!";

Answer 2

我找到了合适的documentation，我解决了这个问题：

{
  description: {
    type: String,
    optional: true,
    custom: function () {
      var shouldBeRequired = this.field('multiplayer').value;

      if (shouldBeRequired) {
        // inserts
        if (!this.operator) {
          if (!this.isSet || this.value === null || this.value === "") return "required";
        }

        // updates
        else if (this.isSet) {
          if (this.operator === "$set" && this.value === null || this.value === "") return "required";
          if (this.operator === "$unset") return "required";
          if (this.operator === "$rename") return "required";
        }
      }
    }
  }
}