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| <?php | |
| /*------------------------------------------------ | |
| Track email click from GF notification | |
| The link in the GF notification would use form entry values as query vars like: | |
| <a href="https://example.com/confirmation-page/?rsvp=1&eid={entry_id}"> Click here to RSVP</a> | |
| The full GF notification url the user clicks looks like: | |
| https://example.com/confirmation-page/?rsvp=1&&eid=1 | |
| ------------------------------------------------ | |
| Function to make shortcode to insert on GF | |
| verification page. Checks for query string "rsvp=1", | |
| and if that's set, use the entry id to know which | |
| entry's hidden rsvp field to update. | |
| Usage of shortcode: [gravity_verify_rsvp] | |
| ------------------------------------------------*/ | |
| function shortcode_gf_verify_rsvp( $atts = array() ) { | |
| /*-------------------------------------------- | |
| * Check if verification param is in the url | |
| *--------------------------------------------*/ | |
| if( isset( $_GET[ 'rsvp' ] ) && $_GET[ 'rsvp' ] == 1 ) { | |
| $entry_id = $_GET[ 'eid' ]; | |
| $input_id = 3; // hidden field id for rsvp | |
| $value = 'yes'; // default is no - change to yes to rsvp | |
| // Attempt to update hidden verification field | |
| $verified = GFAPI::update_entry_field( $entry_id, $input_id, $value ); | |
| // If successful... | |
| if( $verified ) { | |
| return "Thanks for your RSVP!"; | |
| } | |
| } | |
| } | |
| add_shortcode( 'gravity_verify_rsvp', 'shortcode_gf_verify_rsvp' ); |
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