When do we use contextfilter decorator of Jinja2 - jinja2

Jinja2 has an utilities named contextfilter.
I cannot find any document about this filter in Jinja2 site
Can anyone help me to explain when we use this function?
Thank you

It says right there on the page that it is a decorator for marking context dependent filters. I guess it is used to limit a dimensional report to the context of a particular member of a hierarchy. I hope this answers your question.

Related

How to pass a variable into a django admin page?

I have an app in my django project, and I need to display a list in one of its model's templates. How to pass the variable of this list to this model's template?
! I know that there are some almost simular questions but I didn't really understand the answers so they didn't help me. If you have read to this line, thank you a lot for your attention.

Publish MATLAB class documentation to HTML

I am creating a MATLAB package using object-oriented programming. I have documented my classes according to a tutorial from MathWorks website. This standard of documentation, however, only works for doc and help commands, but not when I use publish. For example, properties, which have their description written in front of their declaration, don't have said declaration exported to HTML. There is no list of properties or methods at the beginning of the file, so that users can quickly skip to those. Lastly, documentation has to be read directly from the comments in the code, instead of being parsed to HTML.
When I try to add some HTML documentation inside my classes to publish them, the code also appears on doc and help, which is an undesired behavior. Is there a way to create class documentation so that properties and methods can be published to the Web? I've had experience with doc generators like Sphinx (Python) and Doxygen (many languages), in which the descriptions of classes, methods and properties are parsed to HTML so they can be published in places like Read the Docs or GitHub Pages so I am curious to know if MATLAB has something like that.
You can give a try to MTOC++ which uses Doxygen, therefore produces the standard Doxygen HTML documentation.
I have used it already to generate source code documentation for Matlab project containing standard Matlab functions, old class definitions with # notation and classes defined by classdef mixed, and it worked after some tailoring.
This somewhat larger project allows to create documentation for MatLab
files and classes (including packages) using a doxygen filter named
mtoc++. Moreover, a tool/class named MatlabDocMaker allows to create
the documentation from within MatLab. For Windows, Mac and Unix!
You can find it also on Mathworks File Exchange and you can find the documentation here.
One widely-used way to provide HTML documentation for MATLAB functions/class is the M2HTML project. It will automatically generate HTML documentation complete with dependency graphs, source code, and syntax highlighting.

How do I debug python sphinx themes?

I want to edit a Sphinx theme and can't understand what variables are present in the document. The official documentation laks any kind of information.
How do I see what variables are present in the template?
I think this documentation page will help you - it describes what blocks, configuration variables, helper functions and global variables are available in the template.
And, by default sphinx uses jinja2 templating language - so you can print out the whole template context, like it was suggested in this thread (not sure it'll work in your case).
Hope that helps.

Where to put a custom function in CakePHP

I have a function in one of my views that formats data coming from the DB before displaying it. Since I use this function in many views, I'd like to make a global function that would be accessible from every view. How would I do that ?
As mentioned in the other answers, creating a helper is probably what you are looking for. See the cookbook entry for more information.
To make your helper available in all your views, add the helper to the $helpers array of your AppController (app/Controller/AppController.php).
Creating a helper (as Headshota and preinheimer explained) is the best idea if the function is complex..
But if your function is simple,
you can open the file app/config/bootstrap.php
write your function in this file and that's it..
the function will be accessible anywhere (models, controllers, views, etc)
hope that helps...
I think you want to create a view helper, here's an example one: Minify Helper
Yes you have to create your owns View Helpers.
You will find the documentation in the Section "View > Helpers" of the cook book : here
But the section "Core Libraries > Helpers" just explains how to use the ready-to-use cakephp Helpers like HtmlHelper or FormHelper: here
Likewise you can note that this is the same logic with firstly controllers and components, and secondly model and behaviours.
Then the cook book presents the core components in core-libraries/toc-components
How to create your own is explained in controllers/components
The core behaviours are presented in core-libraries/toc-behaviors
The how to create your own is in models/behaviours
This system is really efficient and makes cakePHP a handy framework (thank you the great documentation) that implement efficiently the Model-View-Controller design pattern.
If you understand that question correctly, you never ask yourself this kind of issue about cakePHP and by the same time, about the MVC pattern.

SSIS Custom Transforms - what is MappedColumnID

SSIS developer documentation is notoriously terse, and I've scoured Google looking for an answer on this...
What is the MappedColumnID property (available on input, output and external metadata columns) all about? It doesn't appear to do anything useful.
Perhaps to rephrase the question... how do I achieve mappings between meta data columns and input / output columns? I know about the ExternalMetaDataColumnID property... but then how/where does MappedColumnID come into play?
Moreover, components like the OLEDB destination have a column mapping editor which appears in both the component UI as well as in the advanced editor. How is this achieved?
MappedColumnID is just an alternative way of identifying the columns instead of using there names.
From MSDN
The use of these properties is not required. These properties provide an easier way for developers to associate related columns, such as input and output columns, in custom data flow components.