Get More Out of Gravity Forms
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From my Vancouver WordPress Meet-up talk about to do neat-o things with the Gravity Forms plugin.
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Get More Out of Gravity Forms
- 2. WHAT WE'LL COVER: 1. The challenge 2. Gravity Forms vs. ... 3. Get more out of the box 4. Get more with hooks 5. Some gotchas
- 4. MUST-HAVES A form that would accept user-submitted nominations and save them as a custom post type A voting mechanism for each award category that only allowed a person to vote once per person per category
- 6. vs. Single license: $39 Single license: $0 + ??? User analytics: $19 File uploads: $39 Front-end posting: $39 Multi-part forms: $39 Conditional logic: $29 TOTAL: $165
- 10. BUT WHAT ABOUT CPTS? There's a plugin for that.
- 12. INTO THIS:
- 13. GRAVITY FORMS + CUSTOM POST TYPES Find it WP plugin directory: wordpress.org/plugins/gravity-forms-custom-post-types/ Better yet, get it from Github*: github.com/bradvin/gravity-forms-custom-post-types *No PHP error notices with WP DEBUG on.
- 14. FORMS IN MODALS (or another modal plugin) will allow you to easily show or or hide your form on demand. Fancybox
- 15. IN A THEME FILE hostedwith ❤by <div id="voting‐form" style="display:none"> <?php echo do_shortcode( '[gravityform id="6" title="false" description="false" ajax="true"]' ) ?> </div> <a href="#voting‐form" class="fancybox button">Vote Now</a> viewrawGravityFormsandFancybox GitHub Initially hidden form + Ajax submitting= no-fuss modal perfection!
- 16. IN THE WILD
- 17. IN THE WILD
- 18. GET MORE WITH HOOKS Around 200 actions & filters you can use to extend GF... www.gravityhelp.com/documentation/page/Developer_Docs
- 19. WHERE DOES IT GO? 1. Your theme's functions.php file 2. A functionality plugin
- 20. AUTO-POPULATE FIELDS Many ways to go about this! gform_field_value_[your custom param] gform_pre_render_[your form ID]
- 21. gform_field_value_[your custom param] Use this filter for text fields or pre-selection of options in a dropdown, etc. See the offcial docs .here hostedwith ❤by function my_city_population_function( $value ){ return 'Vancouver'; } add_filter( 'gform_field_value_my_city', 'my_city_population_function' ); viewrawDynamicallyPopulateGravityFormsTextField GitHub
- 23. gform_pre_render_[your form ID] Use this filter to pre-populate choices in a dropdown, etc. See the offcial docs .here Check out a sample Gist.
- 24. CUSTOM VALIDATION Be the boss of your form AND database! gform_validation_[your form ID]
- 25. gform_validation_[your form ID] hostedwith ❤by function my_custom_validation( $validation_result ) { $form = $validation_result["form"]; // Sorry, you don't get to live in Vancouver... if ( $_POST['input_1'] == 'Vancouver' ) { $validation_result["is_valid"] = false; foreach ( $form["fields"] as &$field ) { // NOTE: Replace 1 with the field you would like to validate if ( $field["id"] == "1" ) { $field["failed_validation"] = true; $field["validation_message"] = "Sorry, you can't enter Vancouver here!"; break; } } } // Assign modified $form object back to the validation result $validation_result["form"] = $form; return $validation_result; } add_filter( 'gform_validation_[your form ID]', 'my_custom_validation' ); viewrawGravityFormsCustomValidationExample GitHub See the offcial docs .here
- 26. RESTRICT UPLOAD SIZE There's no way to do this out of the box and you may not want users uploading 32MB files! There is a plugin for that, but it's buggy. Instead... Check out this Gist.
- 27. CUSTOM CHECK FOR DUPLICATES Preventing duplicates is easy... preventing a single user from submitting the same field value twice is harder. Check out this Gist.
- 28. SOME GOTCHAS Duplicate prevention (use ) Ajax and captcha And on the topic of spam... this plugin
- 29. THAT'S ALL FOLKS! Find me: and@mandiwise mandiwise.com All of the snippets: gist.github.com/mandiwise