everyone：
Recently,I meet a problem when I'm using Django to devlope my site.
In my project, one requirement is to view file online.
That is to say, one can browses files of formats:pdf, jpeg,doc and so on
directly in browsers such as chrome or firefox and so on.
I know this can be done by flash,FlexPaper is one solution. But in django,
not in flash,is there any other solutions? Anyone knows that? If not, I can
only use flexpaper and maybe site can't be accessed via apple devices
Many thanks!!
I think, you can use https://github.com/NetAngels/django-webodt (documentation) with option inline=True:
render_to_response(..., inline=True)
There are plenty of non-flash file browser plugins out there: Elfinder has a Django connector, and you can probably get an integration with CKfinder.
The django packages page also has a list of django file browsers link.
Related
I am using Django web frame work. I am taking pdf files from users (notes/book/etc). Then I want to display those pdf in website, but I could not find a way. Methods that failed 1)iframe 2)simple rendering using django 3)pdf.js library. Also browser blocks rendering initially. Care to suggest a method and steps to implement it.
I the answer to your problem is here :
https://docs.djangoproject.com/en/3.0/howto/outputting-pdf/
Well the answer has to be very very clear here. You can not display pdf using. There is no such library for that. Like pdf.js for javascript based frameworks. I have done the research. So if you want a really good pdf viewer for your django powered website you have to use pdf.js for sure. I have asked people working with django professionally.
output in firefox
ouput in chromium browser
Now 2nd output is what we want
here is the code
I need a way to use upload and browse abilities of django-filer in the djangocms-text-ckeditor, for example to upload images in the articles of my site, as I'm typing them in the ckeditor.
Are there any settings that help me with that? Or should I write a compatible browser myself?
It seems to me that cmsplugin-filer provides what you are looking for. Take a look at the screenshot. From within the ckeditor modal, I can browse django-filer files and integrate them. Is that what you were looking for?
I'm currently learning django and working on my project. My project involves sharing my composed music and allowing free downloads to people. Is there an API for django that can enable me to upload my music and enable users to download at will?
Any advice is appreciated.
Thanks.
In general I agree with Rajat, what you are trying to achieve (at least the way you described it), can be done with standard Django forms and file handling. However, this app should have already built in a lot of the stuff you require.
You don't need an API to upload files to your servers.You only need a form to do that.And for enabling your users to download content,you only need links to the files.You can use some api to let only authenticated users download the content from your site.
You can add the file user submitted file in media folder
We then later you can locate it's path to make available for your users
I met the django-uploadify (multiple file uploading) application, but the only template-use is described in wiki of the project. I need to integrate it with django admin. Any ideas?
#rebus and #Mordi have good suggestions; one of those is probably your best bet. Still...
The current implementation of file uploads in web browsers is single file only. That's a limitation of the HTML standards and the browsers themselves. When you see multiple file upload capability (all at once / select multiple) in some web app, something like Flash or Java is in play. You could potentially use a Flash or Java applet (check out Uploadify - about the easiest to work with you'll find), if you wanted, but you'd have to do some work tying it into Django: namely mapping the output of the applet to the input the Django Admin expects on POST.
Personally I found this package to be painful when I attempted to do this locally. It is 7 years old and not maintained. django-filer is a more modern implementation that has this exact functionality built into the admin panel, it was quick to set up and it seems to be maintained a lot better. And the UI is excellent!
If your really set on using uploadify my attempt was quite painful. When I went to the website to download the uploadify jQuery plugin it was a paid download. After looking a bit I found a fork, and was able to get it going locally, but because the python package is old it required a lot of changes from python 2.7..
To integrate this with your project in the admin will definitely require you to write your own custom admin template. In your admin.py you would have to override the default template and methods, this faq has some insights. In your new template you would include the uploadify jquery script and put the upload file field inside the form where your model fields would be. When you upload files the signal sender in the package will fire, and you would just have to intercept the signal and handle it with your intended logic
Very easy to implement multiple image upload with this project:
https://github.com/tstone/django-uploadify
I want to make my website available offline even if the user clears the cache and cookies. Is is possible? Also I am dealing with database. Is is possible to handle databases offline?
A user could store a local copy of a single webpage using Chrome (right click save-as) and it will store all resources (images, css, js) required to fully load the page offline. Other browsers will have similar options.
You can use wget to mirror a whole website for offline browsing.
wget --mirror --convert-links --html-extension -p http://www.example.com/
of course neither of these options will handle database driven elements of your site/page.
If you want to mock a database or dynamic elements of a page offline then Google Gears is probably the closest to what you are looking for but I think it was deprecated by Google last year.
If your users have modern browsers, try HTML5 Application Cache.
References:
Overview - http://www.html5rocks.com/en/features/offline
Demo - https://jonathanstark.com/labs/app-cache-7/
Tutorial - https://www.html5rocks.com/en/tutorials/appcache/beginner/
Article - http://grinninggecko.com/developing-cross-platform-html5-offline-app-1/
Summary: Click me, I'm the newish thing that browsers now support!
I clicked some of the links found in other answers, and all tools mentioned are deprecated or will/should be soon.
Later when I wasn't connected to the internet, I opened a site operated by Google (either Google Docs or YouTube, I sadly forgot since then) and went to view the page source, as I was curious to see other answers in action. I found something called ORIGIN-TRIAL in the manifest file.
After a quick Google search, I found this, which brought me to this, which somehow brought me to the last link:
https://developers.google.com/web/fundamentals/primers/service-workers
In conclusion, use Service Workers now. If you're curious if it now works with all browsers, don't worry. All popular browsers should support it as seen here.
No, if your databases are housed online. then you need a internet connection for the PHP/ASP (whatever you're using to deal with DBs) to connect/communicate to the DB's
For storing data locally and accessing them offline take a look at Gears and Web Storage.
The main problem is what degree of functionality you want to provide with your website. It always requires some work on the client (user) side to "store" aka. save your website offline. You would have to store all your functionality in one page that the user stores (be it a Flash movie or some Javascript-Code).
You can use simple command to download whole website locally with all links working properly.
wget -rk 'http://www.website.com'
For https url you need to add one more property like below :
wget -rk --no-check-certificate 'https://www.website.com'