Render? Redirect? When validating form...

Hello, so I'm few week in with Flask, it's real fun, I enjoy it quite a bit. But there are still things I don't understand.

Now I'm fighting with this:

I've got a page `issue_status.html` which contains 2 tables with data acquired from a database. This is a route to which I link my links.

@app.route('/issue_status/')
def issue_status():
cur, db = get_db(cursor=True)
issues = cur.execute("SELECT * FROM issues").fetchall()
resolved, unresolved = [], []

for row in issues:
issue = row[1]
found = cur.execute("SELECT * FROM resolved_issues WHERE issue = ?", [issue]).fetchall()
if len(found) > 0:
resolved.append(row)
else:
unresolved.append(row)

all_issues = {'resolved': resolved, 'unresolved': unresolved}
today = datetime.datetime.today().strftime('%Y-%m-%d')
return render_template('issue_status.html', all_issues=all_issues, today=today)

The page contains a form too for adding new issues. It's in the same `issue_status.html` page. When user clicks on `submit`, it would go to this function:

@app.route('/add_issue/', methods=['GET', 'POST'])
def add_issue():
if not session.get('logged_in'):
abort(401)

cur, db = get_db(cursor=True)
issue = request.form.get('issue')
version = ""
date_resolved = ""

existing = cur.execute("SELECT * FROM issues WHERE issue = ?", [issue]).fetchall()
if len(existing) > 0:
flash("This issue already exists...", 'danger')
return redirect(url_for('issue_status'))
....
....
....
flash('New issue was successfully added into database.', 'success')
return redirect(url_for('issue_status'))

**The problem:** I wanted to add to this function **form validation** but don't know how/what to return if the validation fails.

Because when I render the page, I'm missing the data parsed to `issue_status.html` from `issue_status` function. And when I tried to redirect to `issue_status`, that failed somehow too.

I would like to somehow only show under each field (Issue number, username, Description) a form invalid error without refreshing the page. How to do this elegantly?

If you want to see details what I have till now, the WebApp is at [github.com](https://github.com/SonGokussj4/beta-issues)

Any help would be appreciated.

[Screenshot](http://i.imgur.com/zKXV17W.jpg) for visual aid.

/r/flask
https://redd.it/6cidqh

tinynumpy - a lightweight, pure Python, numpy compliant ndarray class
https://github.com/wadetb/tinynumpy

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Just installed django, but get ModuleNotFoundError when I run "django-admin --version" (traceback indluded)

Traceback (most recent call last):
File "C:\Users\X\AppData\Local\Programs\Python\Python36-32\Scripts\django-admin-script.py", line 11, in <module>
load_entry_point('django==1.11.1', 'console_scripts', 'django-admin')()
File "c:\users\x\appdata\local\programs\python\python36-32\lib\site-packages\pkg_resources\__init__.py", line 560, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "c:\users\x\appdata\local\programs\python\python36-32\lib\site-packages\pkg_resources\__init__.py", line 2648, in load_entry_point
return ep.load()
File "c:\users\x\appdata\local\programs\python\python36-32\lib\site-packages\pkg_resources\__init__.py", line 2302, in load
return self.resolve()
File "c:\users\x\appdata\local\programs\python\python36-32\lib\site-packages\pkg_resources\__init__.py", line 2308, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "c:\users\x\appdata\local\programs\python\python36-32\lib\site-packages\django\__init__.py", line 3, in <module>
from django.utils.version import get_version
ModuleNotFoundError: No module named 'django.utils'

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Rest Framework URL Config

I've set up rest_framwork in my Django app in an attempt to make an api for my project. Issue is I run into this error (AttributeError: 'RegexURLResolver' object has no attribute 'default_args')
when trying to run the app. Anybody else have this problem?


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https://redd.it/6cjyrt

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Say you float a mouse over it or toggle a key while hovering one of the choices and it provides a short description with a hover tag.

Example here: https://www.w3schools.com/tags/tag_abbr.asp

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Need Django REST Framework Suggestion

I am trying to achieve this request body and response body

POST /issues/
> {
"Issue": {
"title": "python",
"owner": "test",
"description": "test",
"status": "test",
"projects": "test"
}
}


GET /issues/

> {
"Issue": [
{
"id": 1,
"title": "test",
"owner": "test",
"description": "test",
"status": "test",
"projects": "test"
},
{
"id": 2,
"title": "test",
"owner": "test",
"description": "test",
"status": "test",
"projects": "test"
}, .... ]}


The code in views.py


class CreateView(generics.ListCreateAPIView):

queryset = Issue.objects.all()

serializer_class = IssueSerializer

def list(self, request):
queryset = self.get_queryset()
serializer = IssueSerializer(queryset, many=True)
return Response({"Issue" : serializer.data})

def create(self, request):

serializer = self.get_serializer(data=request.data['issue'])
serializer.is_valid(raise_exception=True)
self.perform_create(serializer)
headers = self.get_success_headers(serializer.data)
return Response(serializer.data, status=status.HTTP_201_CREATED, headers=headers)



is there a better way to do this(ignore the tabs)?

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I watched today Alex Orlov's PyCon 2017 presentation "Cython as a Game Changer for Efficiency" ([link](https://www.youtube.com/watch?v=_1MSX7V28Po)). I tried it years ago but I've never used it actually. Do you use Cython? It hurts portability but it can greatly improve efficiency.

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I'm just getting into wagtail, getting back into webdev. Last time I was doing web stuff, there were no frameworks, so it is a bit of a learning curve for me.

I'm wondering if there is an easy way(i.e package or template) that would allow for a grid stye layout of stores/posts, which would auto update each time a new post was made, similar to the mroe popular news/blog sites like nerdist or whatever.

Or is this something that has to be built from scratch?

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https://redd.it/6clzqo

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This is an extension on my last topic https://www.reddit.com/r/django/comments/6c1q2c/added_google_recaptcha_and_i_get_ssl_certificate/. I didn't really get a solution to.

I now tried a different technique and get a different error message than from all the other stuff I've done before. I followed instructions from this website on setting up stunnel: http://userpath.co/blog/a-simple-way-to-run-https-on-localhost/

and then used this command:
`HTTPS=on python manage.py runserver`

I get this message: https://pastebin.com/JXWVWNJq

My contact form html template has a csrf token
https://pastebin.com/Pcnmw3pA

Of course the major question is what am I doing wrong?
Second question is can https be run on localhost?

If I try https://localhost:8000 I get "This site can’t provide a secure connection localhost sent an invalid response." So I understand that the 403 is saying that my website is unsecure, but the redirect to google recaptcha is.


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https://redd.it/6chqsz

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A while back there was a link posted aimed at beginners on how to structure Python code, files etc... Does anyone happen to have a link discussing this?

Thanks in advance

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Is anyone using a Django project inside a docker container in the Pycharm IDE?
I tried it but I can't figure out how to setup Pycharm for using the python interpreter.
Maybe someone could help me?

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https://github.com/lampepfl/dotty/issues/2491

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Building a Reusable App -- question about templates

Hey Folks:

I'm considering building a reusable app that I could plug into a couple of my other projects. It would be an accounting app to handle all things accounting (revenues, expenses, invoicing, receivables, assets... etc etc).

My question is about the templates. If the app is to be as reusable as possible, how does one set up the templates? Should templates even be part of the app at all? Thinking of my other two projects that are already built, they use some custom CSS with specific classes, etc. so if I have templates as part of the reusable app, the templates would not follow those same standards. Likewise with my other project -- different CSS classes, etc.

So -- do templates normally form part of the reusable app? Should they be excluded? If there are parts of the app that need to be using templates, how should they be built so they are very reusable?

Any thoughts on that front?

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https://redd.it/6corzx

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Im trying to determine how to best structure multiple django apps on subdomains, so they can share user account data. One user account works across 2 subdomains, ideally single-sign on.

I understand we can use SESSION_COOKIE_DOMAIN to share the session cookie, that part seems ok.

And I understand we could simply use shared user tables, and set user model to point to table of another project. But it seems we would want to share code between the projects. Should we have a separate User app in a third repo?

I have seen django-mama-cas , does anyone have experience with it? Or any alternatives?

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