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Community Discussions

Trending Discussions on dpaste

Update model field ( SearchVector ) using signals.py

why the Django admin login page throwing FieldError?

birt Problem with json_unquote with mysql

Find the last of input type="file"

Find element containing "img_width_687_height_517_dpr_4x_ver_" and ".jpg"

AttributeError at /accounts/login/ 'CustomLoginForm' object has no attribute 'email_field'

same database structure and index, but different query speed and explain results

IntegrityError (wrong) instead of ValidationError (correct)

Jupyter notebook core bugging maiby caused by tornado Raspberry Pi

Field isn't instantiated before use

QUESTION

Update model field ( SearchVector ) using signals.py

Asked 2021-Apr-28 at 16:34

I am trying to update search vector field using post_save signal. Through "Admin.py", It is working perfectly, but through "Form page" , the searchVector field or any other field is not getting updated. In form page, I have many to many field - "Tag" that I save through "form.save_m2m" method Please review my code and suggest .. https://dpaste.org/ujPi Thanks in advance

...

ANSWER

Answered 2021-Apr-28 at 04:02

Just to be absolutely sure, everything is saving perfectly but your signals are not being called, right?

This is solvable by adding 2 lines of code inside the apps.py file (which should live at the same depth as your models.py file). For example, if the application (or the folder containing models.py) is called "jobs" and create_profile is inside the file named signals.py you should modify the apps.py file like this:

Source https://stackoverflow.com/questions/67244141

QUESTION

why the Django admin login page throwing FieldError?

Asked 2021-Apr-05 at 13:29

Something strange happened. I have created the custom user model. It was working properly until today. And I have no idea what has gone wrong. When I launch the admin page to login, I see below error after I click on 'login'. I use 'email' as an username

...

ANSWER

Answered 2021-Apr-05 at 13:29

Looking at your traceback you seem to be using the package drf_registration and using drf_registration.auth.MultiFieldsModelBackend as the authentication backend. This package by default uses the list ['username', 'email',] (See Settings (drf_registration - GitHub)) as the possible fields that will be provided as the username to filter the user model for performing authentication.

Your custom user model has no field as username hence this gives you an error.

To change the fields used by this backend you need to set the setting LOGIN_USERNAME_FIELDS as follows in settings.py:

Source https://stackoverflow.com/questions/66953717

QUESTION

birt Problem with json_unquote with mysql

Asked 2021-Mar-20 at 11:55

When i am trying to display the results with json_unquote its showing HEX numbers in the birt.

DB Script for creation of table:

CREATE TABLE action_data1 ( id_ref bigint NOT NULL, data_map text, PRIMARY KEY (id_ref) ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

Rptdesign was attached here

...

ANSWER

Answered 2021-Mar-20 at 11:55

mysql> select json_unquote(json_extract('{"test":"abc"}','$.test')) as test;
+------+
| test |
+------+
| abc  |
+------+

Source https://stackoverflow.com/questions/66719971

QUESTION

Find the last of input type="file"

Asked 2021-Mar-17 at 09:50

The whole html: https://dpaste.com/82768UN7D

There are several such elements:

...

ANSWER

Answered 2021-Mar-17 at 09:49

Your xpath seems wrong.To get the last input file Try that

Source https://stackoverflow.com/questions/66670422

QUESTION

Find element containing "img_width_687_height_517_dpr_4x_ver_" and ".jpg"

Asked 2021-Mar-15 at 12:51

The element on the page look like this:

...

ANSWER

Answered 2021-Mar-15 at 12:26

can your provide url page? I would suggest using smth like that:

Source https://stackoverflow.com/questions/66637929

QUESTION

AttributeError at /accounts/login/ 'CustomLoginForm' object has no attribute 'email_field'

Asked 2021-Feb-26 at 11:26

I want to login user via email and password. I'm unable to do that. Please Help me to fix this issue. I shall be very thankful to you. I tried to use some authenticate stuff and try to login the user but getting multiple email value.

forms.py

...

ANSWER

Answered 2021-Feb-26 at 11:26

An AuthenticationForm [GitHub] is not a ModelForm, but a simple form, so adding a Meta does not make much sense: it will not construct form fields.

What you will need to do is define the (extra) form fields in your form, so:

Source https://stackoverflow.com/questions/66383383

QUESTION

same database structure and index, but different query speed and explain results

Asked 2021-Feb-03 at 09:03

I have 2 MySQL databases on 2 separate cloud servers. One is setup by my colleague and I duplicated that one with same structures.

Days ago I found a query on my database is slow but fast in his database. Then he told me he added 2 indexes for a table and he added the same 2 indexes for my database but it just didn't work and he didn't know why.
The explain result is different after adding the same indexes. And my query is still slow.
(0.36s vs > 3mins)

Could you tell me what's wrong and help me understand the explain result and the differences ?

Query:

...

ANSWER

Answered 2021-Jan-26 at 19:16

The giveaway is the key used in the derived table on your friend's server. This is not a key created by your friend, this is a key generated by mysql automatically as part of subquery materialization optimization technique.

This optimization technique was added in mysql v5.6.5, therefore your ancient mysql version can't take advantage of it. It is time to upgrade! Both of you...

Source https://stackoverflow.com/questions/65905995

QUESTION

IntegrityError (wrong) instead of ValidationError (correct)

Asked 2021-Jan-25 at 06:34

Django Version: 3.1.5

Python Version: 3.6.9

Model

...

ANSWER

Answered 2021-Jan-25 at 06:34

I think your problem is that you've overridden clean method and you didn't call it's dependencies. Because clean of your super model form validate your unique constraints before hitting and writing a new record in database. So I think adding the line super().clean() to your clean method should solve your problem.

Source https://stackoverflow.com/questions/65869639

QUESTION

Jupyter notebook core bugging maiby caused by tornado Raspberry Pi

Asked 2021-Jan-15 at 17:10

I just installes jupyter on my Raspberry pi and I have few bugs... First when I am on the notebook, I can't connect to the core so I can't execute the code meanwhile on the terminal an error is repeting in a loop:

...

ANSWER

Answered 2021-Jan-15 at 17:10

type: sudo pip install 'prompt-toolkit==3.0.0' then: pip3 install --upgrade --user jupyter-console If you want more details : https://github.com/jupyter/jupyter_console/issues/158

Source https://stackoverflow.com/questions/65648027

QUESTION

Field isn't instantiated before use

Asked 2021-Jan-08 at 16:49

The following code, when run, results in a NullPointerExecption. (Option superclass omitted for brevity, you can find it here)

...

ANSWER

Answered 2021-Jan-08 at 16:45

static fields will be initialized in the order they occur in the source code.

Your HELLO/... fields are before your instances field so when the initializer for the former fields are executed the later one will not have been initialized.

Simply move the instances field *beforethe otherpublic static final` fields.

Alternatively, you can make this all much more explicit, by moving the initialization of these fields to a static block a little like this:

Source https://stackoverflow.com/questions/65632759

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