1 import { FormGroup } from '@angular/forms'
2 import { BuildFormArgument, BuildFormDefaultValues } from '../form-validators/form-validator.model'
3 import { FormValidatorService } from './form-validator.service'
5 export type FormReactiveErrors = { [ id: string ]: string | FormReactiveErrors }
6 export type FormReactiveValidationMessages = {
7 [ id: string ]: { [ name: string ]: string } | FormReactiveValidationMessages
10 export abstract class FormReactive {
11 protected abstract formValidatorService: FormValidatorService
12 protected formChanged = false
15 formErrors: any // To avoid casting in template because of string | FormReactiveErrors
16 validationMessages: FormReactiveValidationMessages
18 buildForm (obj: BuildFormArgument, defaultValues: BuildFormDefaultValues = {}) {
19 const { formErrors, validationMessages, form } = this.formValidatorService.buildForm(obj, defaultValues)
22 this.formErrors = formErrors
23 this.validationMessages = validationMessages
25 this.form.valueChanges.subscribe(() => this.onValueChanged(this.form, this.formErrors, this.validationMessages, false))
28 protected forceCheck () {
29 return this.onValueChanged(this.form, this.formErrors, this.validationMessages, true)
33 return this.onValueChanged(this.form, this.formErrors, this.validationMessages, false)
36 private onValueChanged (
38 formErrors: FormReactiveErrors,
39 validationMessages: FormReactiveValidationMessages,
42 for (const field of Object.keys(formErrors)) {
43 if (formErrors[field] && typeof formErrors[field] === 'object') {
45 form.controls[field] as FormGroup,
46 formErrors[field] as FormReactiveErrors,
47 validationMessages[field] as FormReactiveValidationMessages,
53 // clear previous error message (if any)
54 formErrors[ field ] = ''
55 const control = form.get(field)
57 if (control.dirty) this.formChanged = true
59 // Don't care if dirty on force check
60 const isDirty = control.dirty || forceCheck === true
61 if (control && isDirty && control.enabled && !control.valid) {
62 const messages = validationMessages[ field ]
63 for (const key of Object.keys(control.errors)) {
64 formErrors[ field ] += messages[ key ] + ' '