I have defined and exported a schema with some default values for my DB. How do I access default values of the schema from another module?
const mySchema = new Schema({
property: {
type: String,
enum: ['a', 'b', 'c', ...]
},
...
});
module.exports = mongoose.model('Alpha', mySchema);
As an example, I would like to loop over the enum array values and console.log(array[i]).
let alphabet = mySchema.property.enum
alphabet.forEach(letter => console.log(letter))
It is not possible to access default enum values from the mongoose schema itself. You will need to store the enums in a separate variable and use it in you model. Then export that variable and use it where it's needed.
export enum PropertyEnums {
a = "a", // set value of enum a to "a" else it will default to 0
b = "b",
c = "c",
...
}
const mySchema = new Schema({
property: {
type: String,
enum: Object.values(PropertyEnums), // equivalent to ["a", "b", "c", ...]
default: PropertyEnums.a // if you want to set a default value for this field
},
...
});
module.exports = mongoose.model('Alpha', mySchema);
Then just import the enum where it's needed like so:
import { PropertyEnums } from "./yourSchemaFile.js"
let alphabet = Object.values(PropertyEnums)
alphabet.forEach(letter => console.log(letter))
You can define like below:
export enum Props {
A = 'A',
B = 'B'
}
in schema:
property: {
type: String,
enum: Props
},
for Access:
for (let item in Props) {
if (isNaN(Number(item))) {
console.log(item);
}
}