WTForms
flask-wtf
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| WTForms | flask-wtf | |
|---|---|---|
| 5 | 4 | |
| 1,460 | 1,435 | |
| 0.6% | 1.0% | |
| 8.4 | 6.9 | |
| 20 days ago | 22 days ago | |
| Python | Python | |
| BSD 3-clause "New" or "Revised" License | BSD 3-clause "New" or "Revised" License |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
WTForms
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Best library for validating form/request/whatever data?
I know about WTForms. Are there similar packages that you would recommend?
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Using HTML5 fields with WTForms
I then ended up on the WTForms github page, and found that actually there is support for all the new HTML5 fields, but that these fields aren't imported by default. https://github.com/wtforms/wtforms/blob/master/wtforms/fields/html5.py Therefore instead of using
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Flask_wtf custom validator RequiredIf not working with fieldlist / formfields
class RequiredIf(object): #validator which makes a field required depending on value of another field # Source: https://stackoverflow.com/questions/8463209/how-to-make-a-field-conditionally-optional-in-wtforms # source: https://github.com/wtforms/wtforms/issues/623
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Flask + Ajax Error: Dynamic SelectField shows "Not a valid choice"
https://github.com/wtforms/wtforms/blob/22e2cf97c65ed38911543d247ccb0fc2207e0da3/src/wtforms/fields/core.py#L564-L575
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Pre-populate edit form from model with relationships
Yeah, you can populate it even on the frontend and it will work. There is a possible solution: https://github.com/wtforms/wtforms/issues/434#issuecomment-499400017
flask-wtf
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How do you validate the json data in request?
Then I get the validation error even if the fields have proper values. I am not able to find anything relevant via Google search that's why I here for help.. Now I want to add validation to the JSON fields and I came to about the Flask-WTF package by doing some googling.
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How does Flask know what form is?
As said in a comment bellow by u/dsaw12, flask-wtf does it all for you. You can read through the source code here. To answer your question, flask-wtf does it for you in this code block. Even if the form was just created there is also code to check if the request give was a POST, PUT, PATCH, or DELETE; after which it then checks if the form was submitted through an _is_submitted() method with in your form class.
- Is my user session cookie secure?
What are some alternatives?
django-crispy-forms - The best way to have DRY Django forms. The app provides a tag and filter that lets you quickly render forms in a div format while providing an enormous amount of capability to configure and control the rendered HTML.
flask-login - Flask user session management.
marshmallow - A lightweight library for converting complex objects to and from simple Python datatypes.
bootstrap-flask - Bootstrap 4 & 5 helper for your Flask projects.
Deform - A Python HTML form library.
eq-survey-runner - eQ Survey Runner
WTForms-JSON - Adds smart json support for WTForms. Useful for when using WTForms with RESTful APIs.
flask-mongoengine - MongoEngine flask extension with WTF model forms support
django-remote-forms - A platform independent django form serializer
Threaded-Replies-using-Flask-SQLAlchemy-MySQL - A Python Flask app with a MySQL database that implements a nested/threaded replies commenting engine. SQLAlchemy is used as the ORM.
Streaming multipart/form-data parser - Streaming (and fast!) parser for multipart/form-data written in Cython
django-bootstrap4 - Bootstrap 4 integration with Django.