rx-form-mapper/esm2015/lib/bind/model-binder.js

Proper decorator-based transformation / serialization / deserialization of plain javascript classes to angular reactive forms

import 'reflect-metadata';
import { MetadataDesignTypes } from '.';
import { FormMetadata } from '../metadata';
export class ModelBinder {
    constructor() {
        this.metadataKey = 'rx-form-mapper-metadata';
    }
    getMetadata(target) {
        if (!Reflect.hasMetadata(this.metadataKey, target)) {
            Reflect.defineMetadata(this.metadataKey, new FormMetadata(target), target);
        }
        return Reflect.getMetadata(this.metadataKey, target);
    }
    bindForm(target, opts) {
        const formMetadata = this.getMetadata(target);
        formMetadata.setValidators(opts);
    }
    bindCustomControl(target, propertyName, opts) {
        this.getMetadata(target.constructor).setCustomControl(propertyName, opts.mapper, opts);
    }
    bindFormControl(target, propertyName, opts) {
        this.getMetadata(target.constructor).setFormControl(propertyName, opts);
    }
    bindFormGroup(target, propertyName, type) {
        const propertyType = type !== null && type !== void 0 ? type : Reflect.getMetadata(MetadataDesignTypes.TYPE, target, propertyName);
        const propertyFormMetadata = this.getMetadata(propertyType);
        this.getMetadata(target.constructor).setFormGroup(propertyName, propertyFormMetadata);
    }
    bindFormArray(target, propertyName, opts) {
        const itemFormMetadata = this.getMetadata(opts.type);
        this.getMetadata(target.constructor).setFormArray(propertyName, itemFormMetadata, opts);
    }
}
ModelBinder.instance = new ModelBinder();
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