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The db.models.deleteOne() Method

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Description

The db.models.deleteOne() method deletes an ML model specified in its argument.

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Syntax

Here is the syntax: 
db.models.deleteOne({name: "predictor_name"});
On execution, we get: 
{
  "acknowledged": true,
  "deletedCount": 1
}
Where:
NameDescription
nameName of the model to be deleted.

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Example

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Listing All the Predictors

Before deleting a predictor, let’s list all the available predictors using the db.models.find() method. 
db.models.find({});
On execution, we get: 
{
    "name": "home_rentals_model",
    "status": "complete",
    "accuracy": "1.0",
    "predict": "rental_price",
    "update_status": "up_to_date",
    "mindsdb_version": "22.8.3.1",
    "error": null,
    "select_data_query": "",
    "training_options": ""
},
{
    "name": "other_model",
    "status": "complete",
    "accuracy": "1.0",
    "predict": "value_to_be_predicted",
    "update_status": "up_to_date",
    "mindsdb_version": "22.8.3.1",
    "error": null,
    "select_data_query": "",
    "training_options": ""
}

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Dropping a Predictor

The db.models.deleteOne() method drops the model collection called home_rentals_model. 
db.models.deleteOne({name: "home_rentals_model"});
On execution, we get: 
{
  "acknowledged": true,
  "deletedCount": 1
}

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Validating the Deletion

You can validate that the model was removed by listing all the predictors. 
db.models.find({});
On execution, we get: 
{
  "name": "other_model",
  "status": "complete",
  "accuracy": "1.0",
  "predict": "value_to_be_predicted",
  "update_status": "up_to_date",
  "mindsdb_version": "22.8.3.1",
  "error": null,
  "select_data_query": "",
  "training_options": ""
}
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