Pass array with data to ChoiceType (html select) in Symfony v4.2

Question

Introduction

For my personal project i use

Symfony v4.2
PHP 7.2.12

Problem

I can not figure out how to make ChoiceType element display IDs and EMAILs as HTML SELECT option values and indexes.

Example

The picture displays current state of html select with data (id and email) from database.

Code

Array of data from database ($this->userChoices)

array:4 [
    0 => array:2 [
        "id" => 7
        "email" => "[email protected]"
    ]
    1 => array:2 [
        "id" => 8
        "email" => "[email protected]"
    ]
    2 => array:2 [
        "id" => 5
        "email" => "[email protected]"
    ]
    3 => array:2 [
        "id" => 6
        "email" => "[email protected]"
    ]
]

What i am getting

<select id="my-select" name="my-select" class="form-control">
    <optgroup label="0">
        <option value="7">7</option>
        <option value="[email protected]">[email protected]</option>
    </optgroup>
    <optgroup label="1">
        <option value="8">8</option>
        <option value="[email protected]">[email protected]</option>
    </optgroup>
    <optgroup label="2">
        <option value="5">5</option>
        <option value="[email protected]">[email protected]</option>
    </optgroup>
    <optgroup label="3">
        <option value="6">6</option>
        <option value="[email protected]">[email protected]</option>
    </optgroup>
</select>

What i want to get

<select id="my-select">
    <option value=""> Please choose an option </option>
    <option value="7">[email protected]</option>
    <option value="8">[email protected]</option>
    <option value="5">[email protected]</option>
    <option value="6">[email protected]</option>
</select>

Relevant part of myChoiceType

->add('selectUser', ChoiceType::class,
    [
        'choices' => $this->userChoices,
        'choice_value' => function ($choice)
        {
            return $choice;
        },
        'choice_label' => function ($value)
        {
            return $value;
        },
        'mapped' => false,
        'expanded' => false,
        'multiple' => false,
    ]
)

Finally

What am i doing wrong?

How to get ChoiceType display data in html select in the manner i want it to?

Thank you for ideas!

Hello, @Jeto! it is already displayed in first code block. I clarified the heading of the code block. — Rikijs
– Rikijs, Commented Dec 26, 2018 at 16:13

Jeto · Accepted Answer · 2018-12-26 16:34:20Z

3

According to the docs, the choices value must be a simple key => value array.

The choices option is an array, where the array key is the item's label and the array value is the item's value

You can easily get the choices array you want using this code:

$choices = [];
foreach ($this->userChoices as $choice) {
  $choices[$choice['email']] = $choice['id'];
}

Then use the following initialization code:

->add('selectUser', ChoiceType::class,
    [
        'choices' => $choices,
        'mapped' => false,
        'expanded' => false,
        'multiple' => false
    ]
)

Not that I removed choice_value and choice_label which don't serve any purpose in this case.

edited Dec 26, 2018 at 16:34

answered Dec 26, 2018 at 16:16

Jeto

15k2 gold badges39 silver badges50 bronze badges

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

4 Comments

Rikijs Over a year ago

Hey @Jeto! I used your code in the controller before passing data array to the form, but i am getting a notice Notice: Undefined index: [email protected]

Jeto Over a year ago

@Rikijs Sorry I messed up the code. Should be better now! (edited the answer)

Rikijs Over a year ago

Thank you @Jeto, now it works! Just exchanged id ad email to suite my needs - so email is displayed and value is id.

Jeto Over a year ago

@Rikijs Oh you're right, I just edited again, I mixed them both up (but it was enough to give you the idea). Should be good now.

Padam87 · Accepted Answer · 2018-12-26 16:14:38Z

1

Simply pass it as a one dimensional array, with emails as keys, and ids as values.

$choices = [
    '[email protected]' => 7,
    '[email protected]' => 8,
];

answered Dec 26, 2018 at 16:14

Padam87

1,0391 gold badge6 silver badges7 bronze badges

Collectives™ on Stack Overflow

Pass array with data to ChoiceType (html select) in Symfony v4.2

Introduction

Problem

Example

Code

Finally

2 Answers 2

4 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

Introduction

Problem

Example

Code

Finally

2 Answers 2

4 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related