How do you remove a model from mongoose?

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遥遥无期
遥遥无期 2020-12-16 17:22

I don\'t mean remove a document or documents. I mean remove the model entirely so that mongoose is no longer aware of it. After declaring a model I can\'t figure out how to

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  •  暖寄归人
    2020-12-16 17:46

    It appears that you'd have to overwrite some of the source code in order to be able to remove a model an add a new one since Mongoose makes sure that a model doesn't exist before it's willing to create a new one, which may or may not be more than you care to do:

    if (this.models[name] && !collection) {
        // model exists but we are not subclassing with custom collection
        if (schema instanceof Schema && schema != this.models[name].schema) {
          throw new MongooseError.OverwriteModelError(name);
        }
        return this.models[name];
    }
    

    Line 587 https://github.com/LearnBoost/mongoose/blob/master/lib/connection.js

    Question Author's Update:

    Thanks to this answer I discovered that you can access the models defined on the connection through connection.models. In my scenario I was testing a mongoose plugin with Mocha and and I wanted to clear the models between each unit test.

    afterEach(function () {
        mongoose.connection.models = {};
    });
    

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