Get More Out of Gravity Forms
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This document summarizes a presentation about getting more out of Gravity Forms, a popular WordPress form plugin. It covers using Gravity Forms to build nomination and voting forms, comparing it to building forms manually, and using the plugin out of the box or with additional plugins. It also provides examples of using Gravity Forms hooks to customize forms, such as autopopulating fields, adding custom validation, restricting uploads, and preventing duplicate submissions. The presentation encourages leveraging Gravity Forms' many features and over 200 hooks to build powerful forms without writing any code.
![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!](https://image.slidesharecdn.com/get-more-out-of-gravity-forms-140515231736-phpapp02/85/Get-More-Out-of-Gravity-Forms-15-320.jpg)
![AUTO-POPULATE FIELDS
Many ways to go about this!
gform_field_value_[your custom param]
gform_pre_render_[your form ID]](https://image.slidesharecdn.com/get-more-out-of-gravity-forms-140515231736-phpapp02/85/Get-More-Out-of-Gravity-Forms-20-320.jpg)
![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](https://image.slidesharecdn.com/get-more-out-of-gravity-forms-140515231736-phpapp02/85/Get-More-Out-of-Gravity-Forms-21-320.jpg)
![gform_field_value_[your custom param]](https://image.slidesharecdn.com/get-more-out-of-gravity-forms-140515231736-phpapp02/85/Get-More-Out-of-Gravity-Forms-22-320.jpg)
![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.](https://image.slidesharecdn.com/get-more-out-of-gravity-forms-140515231736-phpapp02/85/Get-More-Out-of-Gravity-Forms-23-320.jpg)
![CUSTOM VALIDATION
Be the boss of your form AND database!
gform_validation_[your form ID]](https://image.slidesharecdn.com/get-more-out-of-gravity-forms-140515231736-phpapp02/85/Get-More-Out-of-Gravity-Forms-24-320.jpg)
![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](https://image.slidesharecdn.com/get-more-out-of-gravity-forms-140515231736-phpapp02/85/Get-More-Out-of-Gravity-Forms-25-320.jpg)
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