All Questions

1
answer

Create models.forms dynamically in Django

Good Night with everyone There is some way to create Django form from the existing Django models in a dynamic, automatic way or maybe by doing a for or a loop. I ask this question already if I have for example 2 Company and Book models, th...
asked on 21.02.2018 / 04:58
1
answer

Expression of type List needs unchecked conversion to conform to List

I have a repository class that implements another method to obtain all my clients @Repository public class ClienteRepositoryImpl implements ClienteRepository{ private EntityManager em; @Override @Transactional(readOnly = true)...
asked on 22.02.2018 / 15:05
1
answer

How to create a reactive form in Angular

I have to implement some test in ionic, the questions for these test I collect them from the database and I show them. I have the problem when collecting the data. To start I keep the data of the questions in a array of objects...
asked on 13.02.2018 / 12:20
1
answer

convert query result Mysql to INT

If I have the following function: function obtener_id(){ $conn = db_connect(); $query = "SELECT max(idproblema) FROM problemas"; $result = @$conn->query($query); return $result; } What I want to do is that...
asked on 21.02.2018 / 22:48
1
answer

Difference between database server and database engine

Good morning, maybe it can be a fairly trivial question, but the reality is that many people use it indifferently and I would like to know if they refer to exactly the same, or if there is a technical difference. As far as I understand, both...
asked on 10.08.2017 / 20:15
2
answers

I need to add two numbers of more than 255 bits in assembler

I know it's a very basic question, but I'm eating my head trying to figure out how it's done. I am using a Motorola 6800 with this emulator. I have two numbers, and their sum gives more than 255, I know I have to use ADC but I do not kno...
asked on 25.02.2018 / 00:55
2
answers

Problem with Python, I get this error: 'NoneType' and 'NoneType'

Good morning, I have this code and it turns out that I get this error when I compile    Traceback (most recent call last): File "questionnaire__5.py", line   25, in       aa = (a) / (b) TypeError: unsupported operand type (s) for /: 'NoneType...
asked on 31.07.2017 / 13:24
4
answers

Center vertically and horizontally a div

I am learning to use CSS3 keyframes and animation. I am creating a Galaxy and I want to put a text but I can not focus vertically, I have tried everything but I have not achieved it. How can I do it? * { padding:0; margin:0; }...
asked on 28.02.2018 / 19:55
2
answers

Last record of fields that have the same date MYSQL

I have the following MySQL query: select * from venta as v, pago_venta as pv where pv.pv_fecha in (SELECT MAX(pv_fecha) FROM pago_venta as p GROUP BY ven_id ) AND v.ven_id = pv.ven_id AND v.ven_cliente= 'Amaia Valentina Cardenas Gonzales' T...
asked on 22.08.2017 / 17:24
1
answer

Difference between .copy () and .extend ()

I've been snooping a little, I'm not very into this world. And the question has arisen regarding the difference between = and .copy() . I have found a couple of things in English, but I have not found docu in Spanish and it would...
asked on 03.08.2017 / 09:40