Wrapper around django-photologue dealing w/ remote images.
django-metaimage is an app for the Django web framework; it’s meant to be helpful when dealing with a lot of images from the Internet where the starting point is each image’s URL, as opposed to the more common case of manually uploaded images via a web interface (which django-metaimage can also handle). It is GPL-licensed.
The main MetaImage model provides a wrapper of useful functionality around ImageModel from django-photologue, a dependency. Some of the django-metaimage code was initially inspired from Pinax’s photo app, but I have removed Pinax dependencies, so that django-metaimage only requires:
- django-uni-form, trunk (optional)
You might need django-uni-form, if you want to use the included example templates, and want to see all django-metaimage’s tests pass.
Overall, this app is an alternate way to use the powerful django-photologue app with your site, and possibly with any of your code/process where there’s an influx of many externally-hosted images that need to be represented locally somehow.
Most websites need to deal with images, sometimes uploaded from users, or retrieved from a remote site. The django-metaimage package is especially helpful with the latter case: you can supply just the URL of a remote image, and it will be downloaded and saved locally.
The main class, MetaImage, enables storing useful metadata about images, including a title, caption, notes about the source (e.g. copyrights, permissions), and tags. MetaImage attributes include:
- title, slug, caption, source_note (for attribution text, copyrights, etc.)
And key MetaImage methods include:
- A save() method that can automatically download a remote image to your filesystem, so you’ll always have a local copy should the remote image vanish into the Internet aether.
- render() and render_linked(), which spits out the HTML to show your image on a webpage, with a hyperlink to a details-page.
Basic views, tests, and templates are also provided, so you can quickly integrate the app into an existing Django site.
Install via “pip install django-metaimage” or from source. Then just add “photologue”, “tagging” and “metaimage” to your Django project settings.py file, in the INSTALLED_APPS list, e.g.
INSTALLED_APPS = [ ... "photologue", "tagging", "metaimage", ... ]
And then, do a “manage.py syncdb” to create the database tables needed.
OPTIONAL: Templates are provided for adding, editing, viewing, etc. of metaimages; they’re very basic and meant only as a starting point. But if you want to use them directly, do at least these two things:
- Get and install django-uni-form > 0.7.0 which some of the templates rely on, and also update your setting.py INSTALLED_APPS to list “uni_form” as a package dependency.
- Update your site-wide urls.py, e.g.
urlpatterns = patterns("", ... (r"^metaimage/", include("metaimage.urls")), ... )
Also, many of the django-metaimage templates have templatetags dependencies that are commented out, as they require Pinax or other packages; you can activate them as needed, but be sure to update your INSTALLED_APPS accordingly.
I’ve included a set of unit tests for the app; if you have integrated django-metaimage into an existing Django site/project, just do the usual “manage.py test” and the tests should be run, BUT for all tests to pass, the current trunk (as of 2/2011) of django-uni-form is needed:
Should you want to run django-metaimage’s test suite outside of any particular Django site/project - i.e. stand-alone Django app testing - I suggest installing and using the django-app-test-runner and my fork of it at:
…which enables usage of a testing-specific settings file. After you install django-app-test-runner in your virtualenv (don’t develop in Python without it!) you should be able to do something like:
cd to/where/django-metaimage/code/is app-test-runner ./src/metaimage/ -s src/metaimage/testsettings.py
Note that you’ll need Internet connectivity for the tests to pass.
Please log errors/issues using django-metaimage’s github site, http://github.com/limist/django-metaimage/issues
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