All Questions

2
answers

Nested lists in Laravel 5.5

I'm working on laravel 5.5 I have these two lists: 1- The first is a list of operating systems {!! Form::mySelect('id_so', 'Sistema Operativo', App\SistemasOperativos::pluck('nombre', 'id')->toArray(), null, ['class'=>'chosen', 'pl...
asked on 22.08.2018 / 17:55
1
answer

Avoid self = this by using arrow functions ES6

In a JavaScript class, I have a function that calls a callback using a constructor's own variable. To not copy the entire class I will write an example: class Foo { constructor(bar) { this.bar = bar; } async_print() {...
asked on 21.08.2018 / 19:51
1
answer

Group results in MYSQL applying inner join

I'm trying to group 3 related tables this would be the sql code SELECT * FROM metadata_values mvalues INNER JOIN metadata_descriptors mdes ON mdes.idDescriptor = mvalues.idDescriptor INNER JOIN metadata_schemas mschema ON mschema.idSchema = md...
asked on 21.08.2018 / 20:14
1
answer

Problem with a PHP Function search links

I have a problem with this works what I want to do is the following I want to look for the data of the link but not to give me an error information along with the correct one and if there is no data I get an error message function External...
asked on 23.08.2018 / 21:23
1
answer

How can I create an input dictionary with a forEach in Javascript?

What I want to do is create a dictionary in javascript and then use it in python. I have some dynamic inputs that have different attributes that I would like to put in a dictionary how can I do this? I would like an output more or less if:...
asked on 23.08.2018 / 19:54
1
answer

I only want to list the images but I also list the subfolders

This code lists all the files and folders in my folder, what I want is to just list the images, omitting the subfolders that I have inside that folder, images that I need in the code. <?php function listar_archivos($carpeta){ if(is_dir...
asked on 23.08.2018 / 18:02
1
answer

Digital signature of a PDF with C Sharp and itext

In my work they use digital signatures to validate PDF files that are then delivered to those who request them (those who do not belong to the company), so the PDF should show the signature with the data of the signatory. The signature is bei...
asked on 03.03.2017 / 14:49
1
answer

How to make an ONCHANGE of a SELECT work when loading the page

What I have initially is a select which shows the last weeks that will be reflected in the incidents, the index is like this: <!DOCTYPE html> <html> <head> <title>ejemplo</title> <script src="https://code...
asked on 23.08.2018 / 20:17
1
answer

Change index python loop

My problem is to modify the value of k. That is, when I call the function funmeta, it returns a position that I want it to acquire k and start again the top loop for that position. As it is in the code, it is not modified. for k,i in enumerate...
asked on 07.03.2017 / 08:29
1
answer

Connect returns error Test tokens are not allowed

I am developing the integration with MercadoPago Connect in my marketplace following the documentation of: link I get the seller user token perfectly. But when I try to create a payment preference using that token I always get the error mes...
asked on 03.03.2017 / 00:42