Filters
Filters transform template variables before they are rendered.
- Binaries
- first last length to_binary
- Booleans
- yesno
- Dates
- add_hour add_day add_month add_week add_year date date_range datediff eq_day in_future in_past ne_day sub_hour sub_day sub_month sub_week sub_year timesince…
- Encryption
- md5 sha1
- Character escaping
- brlinebreaks escape escape_check escape_ical escape_link escapejs escapejson escapexml fix_ampersands force_escape linebreaksbr slugify unescape urlencode…
- Forms
- pickle
- HTML
- show_media striptags truncate_html sanitize_html sanitize_url urlize embedded_media without_embedded_media
- Lists
- after before chunk exclude filter first flatten_value group_by index_of is_list join last length make_list member nthtail random randomize range reversed slice…
- Mailing list
- inject_recipientdetails mailinglist_recipient_key_decode
- Menu
- menu_flat menu_ids menu_is_visible menu_expand menu_rsc menu_subtree menu_trail
- Miscellaneous
- gravatar_code ip2country ip2geo is_letsencrypt_valid_hostname format_dispatch_controller_option format_dispatch_path_element
- Numbers
- filesizeformat format_duration format_integer format_number format_price is_even is_number max min minmax rand round round_significant to_integer…
- Regular Expressions
- match replace
- Resource lists
- group_firstchar group_title_firstchar is_a is_not_a is_visible media_for_language
- Resources
- admin_merge_diff content_type_label content_type_urls summary temporary_rsc
- Strings
- append capfirst center filesizeformat format_duration format_integer format_number format_price insert is_valid_email length ljust log_format_stack lower…
- Survey
- survey_answer_split survey_any_correct_answer survey_any_wrong_answer survey_as_pages survey_is_stop survey_is_submit survey_prepare_matching…
- Translation
- is_rtl language language_dir language_sort media_for_language set_url_language trans_languages trans_filter_filled translation
- Tuples
- element
- URLs and links
- is_site_url url url_abs sanitize_url is_letsencrypt_valid_hostname urlize escape_link urlencode urldecode parse_url
- Variables
- as_atom default if if_undefined is_defined is_undefined make_value pprint to_binary to_integer to_json
All Filters
Adds a day to a date. The value must be of the form {{Y,M,D},{H,I,S}} .
Adds an hour to a date. The value must be of the form {{Y,M,D},{H,I,S}} .
Adds a month to a date. The value must be of the form {{Y,M,D},{H,I,S}} .
Adds a week to a date. The value must be of the form {{Y,M,D},{H,I,S}} .
Adds a year to a date. The value must be of the form {{Y,M,D},{H,I,S}} .
Return the first element after another element in a list. For example:
Appends the argument to the value.
Convert a value to an Erlang atom.
Return the first element before another element in a list. For example:
Translate HTML <br/> elements into ASCII newlines ( \n ).
Converts the first character of the value to uppercase.
Centers the value in a field of a certain width using spaces.
This filter splits a list in shorter lists. It splits an array in sub-arrays of at most a given length. This is useful…
Formats a date or datetime according to the format specified in the argument.
Calculate the difference between two dates, returning a single part of that difference.
Show a date range.
Provide an alternative value in case a value has a falsy value (0, false , undefined or empty string).
Select an element from a tuple or list of tuples.
Fetch media ids that are embedded in the body , body_extra and text blocks of your page.
Tests if the value is a date and equal to the argument. The value and the argument must be a tuple of the format {Y,M
HTML escape a text. Escapes all reserved HTML characters in the value. Escaped strings are safe to be displayed in a…
Ensures thant an HTML escaped value is properly escaped.
Escape the value according to the RFC2445 rules.
Escapes the value for insertion in JavaScript output.
Escapes the value for insertion in JSON output.
Convert any URLs in a plaintext into HTML links, with adding the rel="nofollow" attribute, and replaces all newlines…
Escape the value for insertion in xml output.
Filters a list on the value of a property, either on absence or inequality.
This filter formats a numeric value as KB, MB etc. This filter can be used to display a number of bytes in a human…
Filters a list on the value of a property, either on presence or equality.
Returns the first character or element.
Replaces ampersands in the value with “&” entities.
Flatten a list to a comma separated string.
HTML escapes a text.
format_dispatch_controller_option
Format dispatch controller options.
Format dispatch path element so variables will be more visible.
Show a duration in hours, minutes and seconds.
Show an integer value.
Show an integer or float.
Show a price with decimals.
Calculate the gravatar code for an e-mail address:
Groups items of a list by a property.
Group a list of sorted resource ids on their first letter of the title or another rsc property. After grouping, it…
Similar to group_firstchar, but always uses the title column from the rsc table.
Selects an argument depending on a condition.
Tests whether a value is undefined, returning the given argument.
Returns the index of the first occurrence of the item in the given list.
Tests if a date is in the future.
Adds recipient query string details to hyperlinks.
Tests if a date is in the past.
Prepends the argument in front of the value.
Maps an IP address to a country using the MaxMind GeoIP2 database.
Maps an IP address to information about that country.
Filter a list of resource ids on category, or test if a single resource id belongs to a category.
Tests if a value is defined.
Test if an integer value is even:
Test if a hostname can be used for a Let’s Encrypt certificate.
Test if a value is a list:
is_not_a mirrors is_a. It is particularly useful when iterating over a category and excluding members of a sub-category…
Test if a value is a number (integer or floating point):
Check if the given language is a rtl or ltr language.
Test if the given URL is a url for the current site.
Tests if a value is undefined.
Filter a list of resource ids so that only the visible ids remain.
Joins the elements of a list. Joins the elements of the input list together, separated by the argument.
Return the language the resource (or translated text) will be displayed in.
Return rtl or ltr depening on the direction of the language.
Sort a list of language codes or map with languages on their name. Return a list of {Code, LanguageProps} pairs.
Returns the last character or element.
Returns the length of the value.
Translate ASCII newlines ( \n ) into HTML <br /> elements.
Justifies the value in a field of a certain width to the left, with spaces.
Escapes and formats a Javascript string with a stack trace to readable HTML.
Translates the value to lower case.
mailinglist_recipient_key_decode
Used on the mailing list subscriptions page where users and recipients can unsubscribe from mailinglists.
Forces the value to a list.
Match a value with a regular expression.
Take the maximum of the filter value and its first argument.
Translates a string to a md5 hex value.
Filter a list of media items by their medium_language property, return the best matching with the current or given…
Finds a value in a list.
Takes a menu, or a menu resource id, and adds all haspart objects connected to the menu ids.
Flattens the rsc menu structure for use in a template loop.
Returns all resource ids in a menu. Could return invisible and non existing resource ids. The returned ids are a flat…
Filters a list of menu items on visibility and existance. Only top-level menu items that are both visible and exist are…
Return the menu to be displayed with a resource.
Get the subtree of an id in a menu (if any).
Return a breadcrumb navigation trail for the given id.
Take the minimum of the filter value and its first argument.
Force the given value in the given range.
Tests if two dates are not equal.
Normalize an email address, used in the identity management.
Fetch the nth tail of a list.
Parses an URL (URI) using uri_string:parse/1 .
Pickle an Erlang value so that it can be safely submitted with a form.