What I want to achieve in the end is to see which form controls individually from my form have changed and to create a new object with them assigning a boolean of true if they were changed or false if not. Please see below what I achieved so far, but I don't think this the right approach as when I'll have more from controls my method will become gigantic. If you guys have any idea how I can approach this I would really appreciate it.
my Html
<form [formGroup]="editProfileForm">
<ion-row>
<ion-col>
<ion-input
*ngIf="profileData"
formControlName="firstName"
placeholder="First Name"
></ion-input>
</ion-col>
</ion-row>
<ion-row>
<ion-col>
<ion-input
*ngIf="profileData"
formControlName="lastName"
placeholder="Last Name"
></ion-input>
</ion-col>
</ion-row>
</form>
<ion-fab
vertical="bottom"
horizontal="center"
slot="fixed"
(click)="onSubmitEditedProfile()">
<ion-fab-button>
<ion-icon name="checkmark-outline"></ion-icon>
</ion-fab-button>
</ion-fab>
my TS
onSubmitEditedProfile() {
if (this.profileData !== null) {
let updatedFirstName = this.editProfileForm.get("firstName").value;
if (this.profileData.firstname !== updatedFirstName) {
}
console.log("it's the same");
} else {
console.log("it's different")
}
And as my approach means, I'll do the same for lastName
and so on
Here is the example where you can iterate each form control and identify either its changed or not based on that populate new array of object.
onSubmitEditedProfile() {
const formValue = [];
// iterate over form controls no matter how many control you have.
Object.keys(this.form.controls).map((key) => {
// create a new parsed object
const parsedValue = {
[key]: this.form.get(key).value, // key is the actual form control name
changed: this.form.get(key).dirty // added changed key to identify value change
}
// push each parsed control to formValue array.
formValue.push(parsedValue)
})
console.log(formValue)
}
Here is the stackblitz working DEMO
Hope this address your requirements.
All you need is just to read dirty value on FormGroup or individual FormControl
https://angular.io/api/forms/AbstractControl#dirty
onSubmitEditedProfile() {
if (!this.editProfileForm.dirty) {
console.log("it's the same");
} else {
console.log("it's different")
}
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