Combining Values of an Array into FormArray Rows in Reactive Forms

Question

I'm trying to submit a product and i need to get also the this.totals[].amount and this.totals[].total. Right now, i can only get the this.myForm.get('rows').value. I need to insert in the rows the this.totals[].amount and this.totals[].total. How can i do this? Here's the link to my code

CLICK LINK HERE

onCreateProduct(){
   const formData = {
     products: this.myForm.get('rows').value
   }
   console.log(formData)

  }

patchValues() {
    let rows = this.myForm.get('rows') as FormArray;
    this.orders.forEach(material => {
      material.materials.forEach(x => {
        rows.push(this.fb.group({
          material_id: x.id,
          material_name: x.name,
          quantity: [null, Validators.required],
          price: [null, Validators.required],
          dis_checkbox: [true],
          checkbox: [1.12]
        })) //see that total and amount is NOT in the form
        this.totals.push({amount:0,total:0});  //<--add this line
      })
    })
    this.setOnChange();
  }

Adam Keenan · Accepted Answer · 2018-03-19 05:28:59Z

2

You can easily add data to your rows on submit in your onCreateProduct function. Change the code to the following:

const formData = {
  products: this.myForm.get('rows').value.map((row, i) => {
    row.amount = this.totals[i].amount;
    row.total = this.totals[i].total;
    return row;
  })
}

answered Mar 19, 2018 at 5:28

Adam Keenan

7841 gold badge12 silver badges30 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Adam Keenan Over a year ago

The other values for each product are still there. We're just adding the this.totals information onto the existing product information. You could replace the variable row with the variable product if that would make more sense.

Collectives™ on Stack Overflow

Combining Values of an Array into FormArray Rows in Reactive Forms

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related