Schema

A schema defines all the fields that make up the document in a collection. All documents stored in a collection must conform to the collection's schema

Schema Validation

The validation happens during the inserts or updates to the collection. The validation performed like this:

Newly inserted documents are checked for validation.

During update, the new fields values are checked for the validation. As during insertion we are validating the document so we only need to validate the input.

Modifying the Schema

After creating the collection, you can update the schema at any time. For example, in the previous Catalog model you need to add a description field to store product description. This can be achieve by just calling createOrUpdateCollection with a new model.

Step 1: Update the Model

Add the new field in your model.

type Catalog struct {
    Id         int `tigris:"primary_key,autoGenerate"`
    Name       string
    Price      float64
    Brand      string
    Labels     string
    Popularity int
    Description string
}

Step 2: Update the Collection

Updates the collection with the new model and any new operation will see the changes.

db, err := client.OpenDatabase(ctx, &Catalog{})