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Plugin Filter

Introduction

Filters are callback functions that modify content before it is rendered to the user on the browser. Filters can also be applied before content is saved in the database.

In the example below, the filter plugin access the single report title and modifies it before it's rendered to the user on the browser.

Example:

?
<?php
// My Plugin
 
// Add the filter and call the function modify_title
Event::add('ushahidi_filter.report_title', 'modify_title');
 
function modify_title()
{
    // Access the report title
    $report_title = Event::$data;
 
    // Make changes to the report title
    $new_report_title = str_replace("&", "_", $report_title);
 
    // Return new Title
    Event::$data = $new_report_title;
}
?>

Reference

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Filter

Parameter

Description

File

admin_header_block

$content

Modify Admin Header Block Javascript And CSS

application/libraries/Themes.php

pagination

$pagination

 

application/controllers/admin/reports.php

filter_incidents

$incidents

 

application/controllers/admin/reports.php

footer_block

$content

Modify Footer Block Javascript

application/libraries/Themes.php

location_name

$form['location_name']

 

application/controllers/admin/reports.php

location_find

$form['location_find']

 

application/controllers/admin/reports.php

report_download_csv_header

$custom_headers

 

application/controllers/admin/reports.php

report_download_csv_incident

$event_data

Add some custom data for an incident

application/controllers/admin/reports.php

map_main

$div_map

Modify Main Map Block

application/controllers/main.php

map_timeline

$div_timeline

Modify Main Map Block

application/controllers/main.php

active_startDate

$display_startDate

 

application/controllers/main.php

filter.active_endDate

$display_endDate

 

application/controllers/main.php

startDate

$startDate

 

application/controllers/main.php

endDate

$endDate

 

application/controllers/main.php

page_title

 

Modify Page Title

application/controllers/page.php

page_description

 

Modify Page Description

application/controllers/page.php

report_title

$incident_title

Modify report title

application/controllers/reports.php

report_description

$incident_description

Modify report description

application/controllers/reports.php

map_base_layers

$layers

Add custom map layers

application/helpers/map.php

map_layers_js

$js

Alter map layers JS

application/helpers/map.php

fetch_incidents_set_params

$params

Modify parameters for reports

application/helpers/reports.php

message_sms_from

$from

Modification of the values from the SMS gateway

application/helpers/sms.php

message_sms

$message

Modification of the values from the SMS gateway

application/helpers/sms.php

header_block

$content

Modify Header Block Javascript And CSS

application/libraries/Themes.php

header_js

$inline_js

Modify Header Javascript

application/libraries/Themes.php

report_stats

$report_stats

Modify reports list statistics

themes/default/view/reports.php

comment_block

$comments

 

themes/default/views/reports_view.php; themes/polaroid/views/reports_view.php

comment_form_block

$comments_form

 

themes/default/views/reports_view.php; themes/polaroid/views/reports_view.php

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