Mezzanine provides a central system for defining settings within your project and applications that can then be edited by admin users. The package mezzanine.conf contains the models for storing editable settings in the database as well as the functions for registering and loading these settings throughout your project.

Registering Settings

Settings are defined by creating a module named inside one or more of the applications defined in your project’s settings.INSTALLED_APPS setting. Inside your module you then call the function mezzanine.conf.register_setting for each setting you want to define which takes several keyword arguments:

  • name: The name of the setting.
  • label: The verbose name of the setting for the admin.
  • description: The description of the setting.
  • editable: If True, the setting will be editable via the admin.
  • default: The default value of the setting.
  • choices: A list of choices the user can select from when the setting is editable.
  • append: If registering an existing setting, the default value given will be appended to the current.
  • translatable: If django-modeltranslation is activated, this setting will store and display values on a per-language basis.


For settings registered with editable as True, currently only strings, integers/floats and boolean values are supported for the default value.

For example suppose we had a authors application and we wanted to create a setting that controls the number of books displayed per author page, we would define the following in authors.defaults:

from mezzanine.conf import register_setting

    label="Authors books per page",
    description="The number of books to show per author page.",


If you are using Django 1.7 or greater and your app is included in your INSTALLED_APPS as an AppConfig (eg authors.apps.MyCrazyConfig), Mezzanine won’t import your automatically. Instead you must import it manually in your AppConfig’s ready() method.

Reading Settings

Mezzanine provides a settings object via mezzanine.conf.settings in a similar way to Django’s django.conf.settings. This settings object contains each of the settings registered above using their names as attributes. Continuing on from our previous example, suppose we have a view for photos:

from django.shortcuts import render
from mezzanine.conf import settings
from .models import Book

def books_view(request):
    books = Book.objects.all()[:settings.AUTHORS_BOOKS_PER_PAGE]
    return render(request, "books.html", {"books": books})

When defining editable settings, care should be taken when considering where in your project the setting will be used. For example if a setting is used in a urlpattern or the creation of a model class it would only be read when your site is first loaded, and therefore having it change at a later point by an admin user would not have any effect without reloading your entire project. In the snippet above, since the settings is being read within a view, the value of the setting being accessed is loaded each time the view is run. This ensures that if the value of the setting has been changed by an admin user it will be reflected on the website.


It’s also important to realize that with any settings flagged as editable, defining a value for these in your project’s will only serve to provide their default values. Once editable settings are modified via the admin, their values stored in the database will always be used.

Django Settings

Mezzanine’s settings object integrates with Django’s settings object in a couple of ways.

Firstly it’s possible to override the default value for any setting defined using mezzanine.conf.register_setting by adding its name and value as a regular setting to your project’s settings module. This is especially useful when any of your project’s INSTALLED_APPS (including Mezzanine itself) register settings that aren’t editable and you want to override these settings without modifying the application that registered them.

Secondly it’s possible to access any of the settings defined by Django or your project’s settings module via Mezzanine’s settings object in the same way you would use Django’s settings object. This allows for a single access point for all settings regardless of how they are defined.

Default Settings

Mezzanine defines the following settings:


A comma separated list of email addresses that will receive an email notification each time a new account is created that requires approval.

Default: ''


If True, when users create an account, they will not be enabled by default and a staff member will need to activate their account in the admin interface.

Default: False


Minimum length for passwords

Default: 6


If True, the username field will be excluded from sign up and account update forms.

Default: False


Dotted package path and class name of profile form to use for users signing up and updating their profile, when mezzanine.accounts is installed.

Default: 'mezzanine.accounts.forms.ProfileForm'


List of fields to exclude from the profile form.

Default: ()


If True, users will have their own public profile pages.

Default: False


If True, when users create an account, they will be sent an email with a verification link, which they must click to enable their account.

Default: False


A sequence of Page subclasses in the format app_label.model_name, that controls the ordering of items in the select drop-down for adding new pages within the admin page tree interface.

Default: ('pages.RichTextPage',)


Controls whether or not the left-hand admin menu is collapsed by default.

Default: False


Controls the ordering and grouping of the admin menu.

Default: (('Content', ('pages.Page', 'blog.BlogPost', 'generic.ThreadedComment', ('Media Library', 'fb_browse'))), ('Site', ('sites.Site', 'redirects.Redirect', 'conf.Setting')), ('Users', ('auth.User', 'auth.Group')))


Unregister these models from the admin.

Default: ()


Size of thumbnail previews for image fields in the admin interface.

Default: '24x24'


Key for spam filtering service. Used for filtering comments and forms.

Default: ''


Access token for URL shortening service.

Default: ''


Key for URL shortening service.

Default: ''


Username for URL shortening service.

Default: ''


Number of blog posts shown on a blog listing page.

Default: 5


Number of most recent blog posts shown in the RSS feed. Set to None to display all blog posts in the RSS feed.

Default: 20


Slug of the page object for the blog.

Default: 'blog'


A string containing the value year, month, or day, which controls the granularity of the date portion in the URL for each blog post. Eg: year will define URLs in the format /blog/yyyy/slug/, while day will define URLs with the format /blog/yyyy/mm/dd/slug/. An empty string means the URLs will only use the slug, and not contain any portion of the date at all.

Default: ''


If True, URLs for blog post include the month and year. Eg: /blog/yyyy/mm/slug/

Default: False


Mezzanine’s caching uses a technique know as mint caching. This is where the requested expiry for a cache entry is stored with the cache entry in cache, and the real expiry used has the CACHE_SET_DELAY added to it. Then on a cache get, the store expiry is checked, and if it has passed, the cache entry is set again, and no entry is returned. This tries to ensure that cache misses never occur, and if many clients were to get a cache miss at once, only one would actually need to re-generated the cache entry.

Default: 30


If True, users must log in to comment.

Default: False


If True, built-in comments are approved by default.

Default: True


Public key for developer API

Default: ''


Secret key for developer API

Default: ''


Shortname for the comments service.

Default: ''


A comma separated list of email addresses that will receive an email notification each time a new comment is posted on the site.

Default: ''


Number of latest comments shown in the admin dashboard.

Default: 5


If True, comments that have removed checked will still be displayed, but replaced with a removed message.

Default: True


If True, comments that have is_public unchecked will still be displayed, but replaced with a waiting to be approved message.

Default: True


If True, comments can be rated.

Default: True


Dotted path to the function to call on a comment’s value before it is rendered to the template.

Default: None


The form class to use for adding new comments.

Default: 'mezzanine.generic.forms.ThreadedCommentForm'


A three item sequence, each containing a sequence of template tags used to render the admin dashboard.

Default: (('blog_tags.quick_blog', 'mezzanine_tags.app_list'), ('comment_tags.recent_comments',), ('mezzanine_tags.recent_actions',))


Device specific template sub-directory to use as the default device.

Default: ''


Mapping of device specific template sub-directory names to the sequence of strings that may be found in their user agents.

Default: (('mobile', ('2.0 MMP', '240x320', '400X240', 'AvantGo', 'BlackBerry', 'Blazer', 'Cellphone', 'Danger', 'DoCoMo', 'Elaine/3.0', 'EudoraWeb', 'Googlebot-Mobile', 'hiptop', 'IEMobile', 'KYOCERA/WX310K', 'LG/U990', 'MIDP-2.', 'MMEF20', 'MOT-V', 'NetFront', 'Newt', 'Nintendo Wii', 'Nitro', 'Nokia', 'Opera Mini', 'Palm', 'PlayStation Portable', 'portalmmm', 'Proxinet', 'ProxiNet', 'SHARP-TQ-GX10', 'SHG-i900', 'Small', 'SonyEricsson', 'Symbian OS', 'SymbianOS', 'TS21i-10', 'UP.Browser', 'UP.Link', 'webOS', 'Windows CE', 'WinWAP', 'YahooSeeker/M1A1-R2D2', 'iPhone', 'iPod', 'Android', 'BlackBerry9530', 'LG-TU915 Obigo', 'LGE VX', 'webOS', 'Nokia5800')),)


If True, failures to send email will happen silently, otherwise an exception is raised. Defaults to settings.DEBUG.

Default: False


A sequence of fields that will be injected into Mezzanine’s (or any library’s) models. Each item in the sequence is a four item sequence. The first two items are the dotted path to the model and its field name to be added, and the dotted path to the field class to use for the field. The third and fourth items are a sequence of positional args and a dictionary of keyword args, to use when creating the field instance. When specifying the field class, the path django.models.db. can be omitted for regular Django model fields.

Default: ()


Char to use as a field delimiter when exporting form responses as CSV.

Default: ','


If True, emails sent to extra recipients for form submissions won’t be sent from an address taken from one of the form’s email fields.

Default: False


Extra field types for the forms app. Should contain a sequence of three-item sequences, each containing the ID, dotted import path for the field class, and field name, for each custom field type. The ID is simply a numeric constant for the field, but cannot be a value already used, so choose a high number such as 100 or greater to avoid conflicts.

Default: ()


Extra field widgets for the forms app. Should contain a sequence of two-item sequences, each containing an existing ID for a form field, and a dotted import path for the widget class.

Default: ()


Max length allowed for field values in the forms app.

Default: 2000


Max length allowed for field labels in the forms app.

Default: 200


Absolute path for storing file uploads for the forms app.

Default: ''


If True, website forms will use HTML5 features.

Default: False


Google Analytics ID (

Default: ''


A sequence mapping host names to themes, allowing different templates to be served per HTTP host. Each item in the sequence is a two item sequence, containing a host such as, and the name of an importable Python package for the theme. If the host is matched for a request, the templates directory inside the theme package will be first searched when loading templates.

Default: ()


If True, front-end inline editing will be enabled.

Default: True


Name of the jQuery file found in mezzanine/core/static/mezzanine/js/

Default: 'jquery-1.7.2.min.js'


Name of the jQuery UI file found in mezzanine/core/static/mezzanine/js/

Default: 'jquery-ui-1.8.2.min.js'


If True, each site will use its own directory within the filebrowser media library.

Default: False


Unique random string like SECRET_KEY, but used for two-phased cache responses. Like SECRET_KEY, should be automatically generated by the mezzanine-project command.

Default: ''


Models that subclass Ownable and use the OwnableAdmin have their admin change-list records filtered down to records owned by the current user. This setting contains a sequence of models in the format app_label.object_name, that when subclassing Ownable, will still show all records in the admin change-list interface, regardless of the current user.

Default: ()


If True, the left-hand tree template for the pages menu will show all levels of navigation, otherwise child pages are only shown when viewing the parent page.

Default: True


If True, pages with login_required checked will still be listed in menus and search results, for unauthenticated users. Regardless of this setting, when an unauthenticated user accesses a page with login_required checked, they’ll be redirected to the login page.

Default: False


If True, users must log in to rate content such as blog posts and comments.

Default: False


Max value for a rating.

Default: 5


Min value for a rating.

Default: 1


A sequence of integers that are valid ratings.

Default: [1, 2, 3, 4, 5]


List of HTML attributes that won’t be stripped from RichTextField instances.

Default: ('abbr', 'accept', 'accept-charset', 'accesskey', 'action', 'align', 'alt', 'axis', 'border', 'cellpadding', 'cellspacing', 'char', 'charoff', 'charset', 'checked', 'cite', 'class', 'clear', 'cols', 'colspan', 'color', 'compact', 'coords', 'datetime', 'dir', 'disabled', 'enctype', 'for', 'frame', 'headers', 'height', 'href', 'hreflang', 'hspace', 'id', 'ismap', 'label', 'lang', 'longdesc', 'maxlength', 'media', 'method', 'multiple', 'name', 'nohref', 'noshade', 'nowrap', 'prompt', 'readonly', 'rel', 'rev', 'rows', 'rowspan', 'rules', 'scope', 'selected', 'shape', 'size', 'span', 'src', 'start', 'style', 'summary', 'tabindex', 'target', 'title', 'type', 'usemap', 'valign', 'value', 'vspace', 'width', 'xml:lang')


List of inline CSS styles that won’t be stripped from RichTextField instances.

Default: ('margin-top', 'margin-bottom', 'margin-left', 'margin-right', 'float', 'vertical-align', 'border', 'margin')


List of HTML tags that won’t be stripped from RichTextField instances.

Default: ('a', 'abbr', 'acronym', 'address', 'area', 'article', 'aside', 'b', 'bdo', 'big', 'blockquote', 'br', 'button', 'caption', 'center', 'cite', 'code', 'col', 'colgroup', 'dd', 'del', 'dfn', 'dir', 'div', 'dl', 'dt', 'em', 'fieldset', 'figure', 'font', 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'header', 'hr', 'i', 'img', 'input', 'ins', 'kbd', 'label', 'legend', 'li', 'map', 'men', 'nav', 'ol', 'optgroup', 'option', 'p', 'pre', 'q', 's', 'samp', 'section', 'select', 'small', 'span', 'strike', 'strong', 'sub', 'sup', 'table', 'tbody', 'td', 'textarea', 'tfoot', 'th', 'thead', 'tr', 'tt', '', 'ul', 'var', 'wbr')


Dotted path to the function to call on a RichTextField value before it is rendered to the template.

Default: None


List of dotted paths to functions, called in order, on a RichTextField value before it is rendered to the template.

Default: ('mezzanine.utils.html.thumbnails',)


Do not change this setting unless you know what you’re doing.

When content is saved in a Rich Text (WYSIWYG) field, unsafe HTML tags and attributes are stripped from the content to protect against staff members intentionally adding code that could be used to cause problems, such as changing their account to a super-user with full access to the system.

This setting allows you to change the level of filtering that occurs. Setting it to low will allow certain extra tags to be permitted, such as those required for embedding video. While these tags are not the main candidates for users adding malicious code, they are still considered dangerous and could potentially be mis-used by a particularly technical user, and so are filtered out when the filtering level is set to high.

Setting the filtering level to no filtering, will disable all filtering, and allow any code to be entered by staff members, including script tags.

Choices: High: 1, Low (allows video, iframe, Flash, etc): 2, No filtering: 3

Default: 1


Dotted package path and class name of the widget to use for the RichTextField.

Default: 'mezzanine.core.forms.TinyMceWidget'


Sequence of models that will be provided by default as choices in the search form. Each model should be in the format app_label.model_name. Only models that subclass mezzanine.core.models.Displayable should be used.

Default: ('pages.Page', 'blog.BlogPost')


Number of results shown in the search results page.

Default: 10


A URL prefix for mounting all of Mezzanine’s urlpatterns under. When using this, you’ll also need to manually apply it to your project’s root module. The root module provided by Mezzanine’s mezzanine-project command contains an example of this towards its end.

Default: ''


A tag line that will appear at the top of all pages.

Default: 'An open source content management platform.'


Title that will display at the top of the site, and be appended to the content of the HTML title tags on every page.

Default: 'Mezzanine'


Dotted Python path to the callable for converting strings into URL slugs. Defaults to mezzanine.utils.urls.slugify_unicode which allows for non-ascii URLs. Change to django.template.defaultfilters.slugify to use Django’s slugify function, or something of your own if required.

Default: 'mezzanine.utils.urls.slugify_unicode'


Sequence of dotted Python paths to callable functions used for checking posted content (such as forms or comments) is spam. Each function should accept three arguments: the request object, the form object, and the URL that was posted from. Defaults to mezzanine.utils.views.is_spam_akismet which will use the spam filtering service when the AKISMET_API_KEY setting is configured.

Default: ('mezzanine.utils.views.is_spam_akismet',)


If True, users will be automatically redirected to HTTPS for the URLs specified by the SSL_FORCE_URL_PREFIXES setting.

Default: False


If True, only URLs specified by the SSL_FORCE_URL_PREFIXES setting will be accessible over SSL, and all other URLs will be redirected back to HTTP if accessed over HTTPS.

Default: True


Host name that the site should always be accessed via that matches the SSL certificate.

Default: ''


Sequence of URL prefixes that will be forced to run over SSL when SSL_ENABLED is True. i.e. (‘/admin’, ‘/example’) would force all URLs beginning with /admin or /example to run over SSL.

Default: ('/admin', '/account')


List of words which will be stripped from search queries.

Default: ('a', 'about', 'above', 'above', 'across', 'after', 'afterwards', 'again', 'against', 'all', 'almost', 'alone', 'along', 'already', 'also', 'although', 'always', 'am', 'among', 'amongst', 'amoungst', 'amount', 'an', 'and', 'another', 'any', 'anyhow', 'anyone', 'anything', 'anyway', 'anywhere', 'are', 'around', 'as', 'at', 'back', 'be', 'became', 'because', 'become', 'becomes', 'becoming', 'been', 'before', 'beforehand', 'behind', 'being', 'below', 'beside', 'besides', 'between', 'beyond', 'bill', 'both', 'bottom', 'but', 'by', 'call', 'can', 'cannot', 'cant', 'co', 'con', 'could', 'couldnt', 'cry', 'de', 'describe', 'detail', 'do', 'done', 'down', 'due', 'during', 'each', 'eg', 'eight', 'either', 'eleven', 'else', 'elsewhere', 'empty', 'enough', 'etc', 'even', 'ever', 'every', 'everyone', 'everything', 'everywhere', 'except', 'few', 'fifteen', 'fifty', 'fill', 'find', 'fire', 'first', 'five', 'for', 'former', 'formerly', 'forty', 'found', 'four', 'from', 'front', 'full', 'further', 'get', 'give', 'go', 'had', 'has', 'hasnt', 'have', 'he', 'hence', 'her', 'here', 'hereafter', 'hereby', 'herein', 'hereupon', 'hers', 'herself', 'him', 'himself', 'his', 'how', 'however', 'hundred', 'ie', 'if', 'in', 'inc', 'indeed', 'interest', 'into', 'is', 'it', 'its', 'itself', 'keep', 'last', 'latter', 'latterly', 'least', 'less', 'ltd', 'made', 'many', 'may', 'me', 'meanwhile', 'might', 'mill', 'mine', 'more', 'moreover', 'most', 'mostly', 'move', 'much', 'must', 'my', 'myself', 'name', 'namely', 'neither', 'never', 'nevertheless', 'next', 'nine', 'no', 'nobody', 'none', 'noone', 'nor', 'not', 'nothing', 'now', 'nowhere', 'of', 'off', 'often', 'on', 'once', 'one', 'only', 'onto', 'or', 'other', 'others', 'otherwise', 'our', 'ours', 'ourselves', 'out', 'over', 'own', 'part', 'per', 'perhaps', 'please', 'put', 'rather', 're', 'same', 'see', 'seem', 'seemed', 'seeming', 'seems', 'serious', 'several', 'she', 'should', 'show', 'side', 'since', 'sincere', 'six', 'sixty', 'so', 'some', 'somehow', 'someone', 'something', 'sometime', 'sometimes', 'somewhere', 'still', 'such', 'system', 'take', 'ten', 'than', 'that', 'the', 'their', 'them', 'themselves', 'then', 'thence', 'there', 'thereafter', 'thereby', 'therefore', 'therein', 'thereupon', 'these', 'they', 'thickv', 'thin', 'third', 'this', 'those', 'though', 'three', 'through', 'throughout', 'thr', 'thus', 'to', 'together', 'too', 'top', 'toward', 'towards', 'twelve', 'twenty', 'two', 'un', 'under', 'until', 'up', 'upon', 'us', 'very', 'via', 'was', 'we', 'well', 'were', 'what', 'whatever', 'when', 'whence', 'whenever', 'where', 'whereafter', 'whereas', 'whereby', 'wherein', 'whereupon', 'wherever', 'whether', 'which', 'while', 'whither', 'who', 'whoever', 'whole', 'whom', 'whose', 'why', 'will', 'with', 'within', 'without', 'would', 'yet', 'you', 'your', 'yours', 'yourself', 'yourselves', 'the')


Number of different sizes for tags when shown as a cloud.

Default: 4


Sequence of setting names available within templates.



Directory name to store thumbnails in, that will be created relative to the original image’s directory.

Default: '.thumbnails'


URL for the JavaScript file (relative to STATIC_URL) that handles configuring TinyMCE when the default RICHTEXT_WIDGET_CLASS is used.

Default: 'mezzanine/js/tinymce_setup.js'


Default: ''


Default: ''


Default: ''


Default: ''


Number of tweets to display in the default Twitter feed.

Default: 3


Twitter query to use for the default query type.

Note: Once you change this from the default, you’ll need to configure each of the oAuth consumer/access key/secret settings. Please refer to for more information on creating an application and acquiring these settings.

Default: 'from:stephen_mcd mezzanine'


Type of query that will be used to retrieve tweets for the default Twitter feed.

Choices: User: user, List: list, Search: search

Default: 'search'


Dict mapping file field names in the format app_label.model_name.field_name to the Python dotted path to function names that will be used for the file field’s upload_to argument.

Default: {}


If True, the django-modeltranslation application will be automatically added to the INSTALLED_APPS setting.

Default: False


If True, the south application will be automatically added to the INSTALLED_APPS setting.

Default: True

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