MarianoC1993's questions

I am developing an application with Flutter, currently from a button I am accessing my gallery, but when I select the image it should show me the selected image in a widget:

return Scaffold(
  key: scaffoldKey,
  appBar: AppBar(
    title: Text('Producto'),
    actions: <Widget>[
      IconButton(
        icon: Icon( Icons.photo_size_select_actual ),
        onPressed: _seleccionarFoto,
      ),
      IconButton(
        icon: Icon( Icons.camera_alt ),
        onPressed: _tomarFoto,
      )
    ],
  ),
  body: SingleChildScrollView(
    child: Container(
      padding: EdgeInsets.all(15.0),
      child: Form(
        key: formKey,
        child: Column(
          children: <Widget>[
            _mostrarFoto(),
            _crearNombre(),
            _crearPrecio(),
            _crearDisponible(),
            _crearBoton(),
          ],
        ),
      ),
    ),
  ),
);

}

The method that selects the photo

_seleccionarFoto() async {

foto = await ImagePicker.pickImage(
  source: ImageSource.gallery
);

if ( foto != null ) {
  // limpieza

}

setState(() {});

}

The widget that displays the photo:

Widget _mostrarFoto() {

if ( producto.fotoUrl != null ) {
  return Container();
} else {
  return Image(

    image: AssetImage( foto?.path ?? 'assets/no-image.png'),
    height: 300.0,
    fit: BoxFit.cover,

  );
}

}

Selecting the image returns to the widget from where the button was pressed to access the gallery, but it does not show any image and shows the following error:

"Unable to load asset: /storage/emulated/0/WhatsApp/Media/WhatsApp Images/IMG-20200123-WA0049.jpg"

After that the application no longer goes back, I have to restart for it to work again. I would appreciate your help, no matter how small, thank you.

I ran into a problem in Laravel, I'm trying to add multiple images at the same time using the multiple attribute on an input of type file:

<input type="file" name="image[]" id="image" multiple class="form-control">

If, for example, I select 3 images and send it, then I return it in the store method:

return $files = $request->file('image'); 

it shows me as follows:

[
  {},
  {},
  {}
]

and when accessing any of the properties of that object, it returns me (varies according to the position I access):

D:\xampp\tmp\php698A.tmp

I then convert to a valid path with:

$upload->upload_global($files[0], 'productimage');

And it returns me:

/uploads/productimage/1552657379_1552657379.jpg

So far everything is correct, what I would like to know is how to register all the images. I have used for and foreach and none works for me, it only saves the first image:

for:

        $files = $request->file('image');

        for ($i=0; $i < count($files) ; $i++) {
            $this->modelo::create([
                'title' => $request->title,
                'product_id' => base64_decode($request->product_id),
                'image' => $upload->upload_global($file, 'productimage'),
                'create_uid' => Auth::user()->id,
                'write_uid' => Auth::user()->id
            ]);
        }

foreach:

        $files = $request->file('image');

        foreach($files as $file){
            $this->modelo::create([
                'title' => $request->title,
                'product_id' => base64_decode($request->product_id),
                'image' => $upload->upload_global($file, 'productimage'),
                'create_uid' => Auth::user()->id,
                'write_uid' => Auth::user()->id
            ]);
        }

And in both cases it only saves the first image. That means it doesn't loop through the $i, but it always uploads the same image repeatedly depending on how many images I select. How could I get all the images uploaded? From already thank you very much.

I have the following query: I want to know if it is possible to use a variable in an attribute in ajax, I don't know if I am explaining myself, but in the following code I will try to explain:

<script>
function active_change_update(ruta, id, status, campo)
{
    if(status==1 || status==null){
        var estado = 0;
    }else{
        var estado = 1;
    }

    var dato = { 
        'id': id,
        '_token': "{{ csrf_token() }}",
        //por defecto utilizaba active ya que en mi tabla producto esta asi y lo unico que quiero modificar es el valor del active
        //hasta aqui todo bien
        'active': estado
    };

    $.ajax({
        type: "PUT",
        url: ruta,
        dataType: 'json',
        data: dato,
        success:function(data) {
            window.location.reload();
        }
    });
}

As you can see, I want to modify the value of active, but I realized that I can use this function to modify various attributes of other tables, for example "sold" or "delivered" which are also boolean. What I want to do is the following:

function active_change_update(ruta, id, status, campo)
{
    if(status==1 || status==null){
        var estado = 0;
    }else{
        var estado = 1;
    }

    //recibo el valor de "campo" que en este caso es "vendido" y quiero pasar ese atributo al json

    var dato = { 
        'id': id,
        '_token': "{{ csrf_token() }}",
        //de esta manera
        campo: estado
    };

    $.ajax({
        type: "PUT",
        url: ruta,
        dataType: 'json',
        data: dato,
        success:function(data) {
            window.location.reload();
        }
    });
}

This is absolutely not the right way and I have searched for various alternatives, I would really appreciate it if you could help me with this. From already thank you very much.

I am working with migrations in Laravel and I have a partners table that has a type attribute of type enum with the following values:

$table->enum('type', ['cliente', 'proveedor', 'empleado', 'transportadora'])->nullable();

What I need is the following: Create another migration so that I can modify the partners table, adding one more value to the enum so that the database looks like this:

['cliente', 'proveedor', 'empleado', 'transportadora', 'nuevo_dato']

What I tried so far was the following:

Schema::table('partners', function ($table) {            
         DB::statement("ALTER COLUMN 'type' ADD VALUE 'nuevo_dato' AFTER 'cliente'");
});

And I also tried:

Schema::table('partners', function ($table) {    
      $table->enum('type', ['cliente', 'proveedor', 'empleado', 'transportadora', 'nuevo_dato'])->change();
});

Y...

DB::statement("ALTER TABLE 'partners' MODIFY COLUMN 'type' enum('nuevo_dato') NOT NULL AFTER `transportadora`");

Without reaching the expected result. I would be very grateful if you help me with this. (PS: I'm using PostgreSQL)