Select

Class: Code16\Sharp\Form\Fields\SharpFormSelectField

Configuration

self::make(string $key, array $options)

The $options array can be either:

• a simple key-value array
• an array of arrays with id and label keys. Fore instance:

[
    ["id"=>1, "label"=>"Label 1"],
    ["id"=>2, "label"=>"Label 2"],
]

This allows to write code like this:

SharpFormSelectField::make("travel_id",
    Travel::orderBy("departure_date")->get()->map(function($travel) {
        return [
            "id" => $travel->id,
            "label" => $travel->departure_date->format("Y-m-d")
                . " — " . $travel->destination
        ];
    })->all()
)

setMultiple(bool $multiple = true)

Allow multi-selection (default: false)

setClearable(bool $clearable = true)

Allow null value in non-multiple selection (default: false)

setDisplayAsList()

Display as a list (the default value):

• radio if multiple=false
• checkboxes if multiple=true

setDisplayAsDropdown()

Display as a classic dropdown.

setMaxSelected(int $maxSelected)

Set a maximum item selection (multiple only). Default: unlimited.

setMaxSelectedUnlimited()

Unset a maximum item selection (multiple only).

setInline(bool $inline = true)

Display an inline checklist (if multiple + display=list).

setIdAttribute(string $idAttribute)

Set the id name attribute of options (default: "id").

setOptionsLinkedTo(string ...$fieldKeys)

Thanks to this feature, you can link the dataset (meaning: the options) of the select to another field of the form (or even: to some other fields). In this case, the options array must be indexed with the value of the linked field.

For instance:

SharpFormSelectField::make("brand",
    [
        "France" => [
            ["id"=>1, "label"=>"Renault"],
            ["id"=>2, "label"=>"Peugeot"],
        ], "Germany" => [
            ["id"=>3, "label"=>"Audi"],
            ["id"=>4, "label"=>"Mercedes"],
        ]
    ]
)->setOptionsLinkedTo("country")

This would work on relation with a country form field, which may be valued with "France" or "Germany".

In some cases you may want to depend on more than one field; you must add a nested level in the options array:

SharpFormSelectField::make("model",
    [
        "France" => [
            1 => [["id"=>67, "label"=>"Clio"], ...],
            2 => ...
        ], "Germany" => [
            3 => [["id"=>98, "label"=>"A4"], ...],
            4 => ...
        ]
    ]
)->setOptionsLinkedTo("country", "brand")

Formatter

• toFront: expects

  • a single id value if multiple=false
  • an array of id values OR an array of models if multiple=true

• fromFront: returns

  • a single id value if multiple=false
  • an array of arrays with the "id" key otherwise:

[
    ["id" => 1],
    ["id" => 2]
]