Gravity Wiz // Gravity Forms // Advanced Conditional Logic

gw-gravity-forms-advanced-conditional-logic.php

<?php
/**
 * Gravity Wiz // Gravity Forms // Advanced Conditional Logic
 * 
 * PLEASE NOTE: This snippet is a proof-of-concept. It is not supported and we have no plans to improve it.
 *
 * Allows multiple groups of conditional logic per field.
 *
 * @version	  0.1
 * @author    David Smith <[email protected]>
 * @license   GPL-2.0+
 * @link      http://gravitywiz.com/
 *
 * Plugin Name: Gravity Forms - Advanced Conditional Logic
 * Plugin URI: http://ounceoftalent.com
 * Description: Allows multiple groups of conditional logic per field.
 * Author: David Smith
 * Version: 0.1
 * Author URI: http://gravitywiz.com
 */
class GW_Advanced_Conditional_Logic {

    protected static $is_script_output = false;

    public function __construct( $args = array() ) {

        // set our default arguments, parse against the provided arguments, and store for use throughout the class
        $this->_args = wp_parse_args( $args, array(
            'form_id'  => false,
            'field_id' => false
        ) );

        // do version check in the init to make sure if GF is going to be loaded, it is already loaded
        add_action( 'init', array( $this, 'init' ) );

    }

    function init() {

        // make sure we're running the required minimum version of Gravity Forms
        if( ! property_exists( 'GFCommon', 'version' ) || ! version_compare( GFCommon::$version, '1.8', '>=' ) ) {
            return;
        }

	    // @remove
	    //add_filter( 'gform_pre_render', array( $this, 'add_temp_data' ) );

        // time for hooks
        add_filter( 'gform_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
        add_filter( 'gform_pre_render', array( $this, 'load_form_script' ) );
	    add_filter( 'gform_register_init_scripts', array( $this, 'add_init_script' ) );
	    add_filter( 'gform_pre_render', array( $this, 'prepare_form_object' ) );

	    add_action( 'admin_enqueue_scripts',         array( $this, 'enqueue_admin_scripts' ) );
	    add_action( 'gform_field_advanced_settings', array( $this, 'field_setting_ui' ) );
	    add_action( 'gform_editor_js',               array( $this, 'field_setting_js' ) );

    }



	// # FRONTEND

	function enqueue_scripts( $form ) {

		if( $this->is_applicable_form( $form ) ) {

			wp_enqueue_script( 'gform_gravityforms' );
			wp_enqueue_script( 'gform_conditional_logic' );

		}

	}

	function add_temp_data( $form ) {

		/**
		 * [ show/hide ] this field if
		 * [ Field ] [ is ] [ value ] AND
		 * [ Field ] [ is ] [ value ]
		 * - OR -
		 * [ Field ] [ is ] [ value ] AND
		 * [ Field ] [ is ] [ value ]
		 */

		$logic_template = array(
			'actionType' => 'show', // 'show', 'hide'
			'logicType'  => 'all',  // 'all', 'any'
			'rules'      => array(
				array(
					'fieldId'  => 1,
					'operator' => 'is', // 'is', 'isnot', '>', '<', 'contains', 'starts_with', 'ends_with'
					'value'    => 'First Choice'
				),
				array(
					'fieldId'  => 2,
					'operator' => 'is',
					'value'    => 'Second Choice'
				)
			)
		);

		$new_logic_template = array(
			'actionType' => 'show', // 'show', 'hide'
			'logicType'  => null,
			'groups' => array(
				array(
					'actionType' => 'show',
					'logicType'  => 'all',
					'rules' => array(
						array(
							'fieldId'  => 1,
							'operator' => 'is', // 'is', 'isnot', '>', '<', 'contains', 'starts_with', 'ends_with'
							'value'    => 'First Choice'
						),
						array(
							'fieldId'  => 2,
							'operator' => 'is',
							'value'    => 'Second Choice'
						)
					)
				),
				array(
					'actionType' => 'show',
					'logicType'  => 'all',
					'rules' => array(
						array(
							'fieldId'  => 1,
							'operator' => 'is', // 'is', 'isnot', '>', '<', 'contains', 'starts_with', 'ends_with'
							'value'    => 'Second Choice'
						),
						array(
							'fieldId'  => 2,
							'operator' => 'is',
							'value'    => 'Third Choice'
						)
					)
				)
			)
		);

		return $form;
	}

	function prepare_form_object( $form ) {

		$adv_logic = $this->get_advanced_conditional_logic( $form );

		foreach( $form['fields'] as $field ) {

			if( ! isset( $adv_logic[ $field['id'] ] ) ) {
				continue;
			}

			// add "fake" rule to trigger our advanced conditional logic
			// also add (?)
			$field['conditionalLogic'] = array(
				'actionType' => 'show', // 'show', 'hide'
				'logicType'  => 'all',  // 'all', 'any'
				'rules'      => array(
					array(
						'fieldId'  => $field['id'],
						'operator' => 'is', // 'is', 'isnot', '>', '<', 'contains', 'starts_with', 'ends_with'
						'value'    => '__adv_cond_logic'
					)
				)
			);

			$rules = array();

			foreach( $adv_logic[ $field['id'] ]['groups'] as $group ) {
				foreach( $group['rules'] as &$rule ) {
					$rule['value'] = '__return_true';
					$rules[] = $rule;
				}
			}

			$conditionalLogic = $field['conditionalLogic'];
			$conditionalLogic['rules'] = array_merge( $conditionalLogic['rules'], $rules );
			$field['conditionalLogic'] = $conditionalLogic;

		}

		return $form;
	}

    function load_form_script( $form ) {

        if( $this->is_applicable_form( $form ) && ! self::$is_script_output ) {
            $this->output_script();
        }

        return $form;
    }

    function output_script() {
        ?>

        <script type="text/javascript">

            ( function( $ ) {

                window.GWAdvCondLogic = function( args ) {

                    var self = this;

                    // copy all args to current object: (list expected props)
                    for( prop in args ) {
                        if( args.hasOwnProperty( prop ) )
                            self[prop] = args[prop];
                    }

                    self.init = function() {

	                    self.doingLogic = false;

                        // do the magic

	                    gform.addFilter( 'gform_is_value_match', function( isMatch, formId, rule ) {

		                    if( rule.value == '__return_true' ) {
			                    return true;
		                    } else if( rule.value != '__adv_cond_logic' || self.doingLogic ) {
			                    return isMatch;
		                    }

		                    self.doingLogic = true;

		                    isMatch = self.isAdvancedConditionalLogicMatch( formId, self.logic[ rule.fieldId ] );

		                    self.doingLogic = false;

		                    return isMatch;
	                    } );

                    };

	                self.isAdvancedConditionalLogicMatch = function( formId, logic ) {

		                for( var i in logic.groups ) {
			                if( logic.groups.hasOwnProperty( i ) ) {
				                var action = gf_get_field_action( formId, logic.groups[ i ] );
				                if( action == 'show' ) {
					                return true;
				                }
			                }
		                }

		                return false;
	                };

                    self.init();

                }

            } )( jQuery );

        </script>

        <?php

        self::$is_script_output = true;

    }

    function add_init_script( $form ) {

        if( ! $this->is_applicable_form( $form ) ) {
            return;
        }

        $args = array(
            'formId' => $form['id'],
	        'logic'  => $this->get_advanced_conditional_logic( $form )
        );

        $script = 'new GWAdvCondLogic( ' . json_encode( $args ) . ' );';
        $slug   = implode( '_', array( 'gw_advanced_conditional_logic', $form['id'] ) );

        GFFormDisplay::add_init_script( $form['id'], $slug, GFFormDisplay::ON_PAGE_RENDER, $script );

    }



	// # ADMIN

	function enqueue_admin_scripts() {

		wp_register_script( 'knockout', 'https://cdnjs.cloudflare.com/ajax/libs/knockout/3.3.0/knockout-min.js' );
		add_filter( 'gform_noconflict_scripts', function( $scripts ) { $scripts[] = 'knockout'; return $scripts; } );

		if( GFForms::get_page() == 'form_editor' ) {
			wp_enqueue_script( 'knockout' );
		}

	}

	function field_setting_ui( $position ) {

		if( $position != -1 ) {
			return;
		}

		?>

		<style type="text/css">

			#gwacl .gws-child-settings {
				display:none;
				padding: 10px 0;
				margin: 6px 0 0 0;
				border: 0;
			}

			#gwacl header div {
				margin: 0 0 10px;
			}
			#gwacl .group:after {
				content: 'or';
				display: block;
				border-bottom: 1px solid #eee;
				height: 10px;
				text-align: center;
				text-shadow: 1px 1px #fff, -1px -1px #fff, 1px -1px #fff, -1px 1px #fff,
							 2px 2px #fff, -2px -2px #fff, 2px -2px #fff, -2px 2px #fff,
							 3px 3px #fff, -3px -3px #fff, 3px -3px #fff, -3px 3px #fff,
							 4px 4px #fff, -4px -4px #fff, 4px -4px #fff, -4px 4px #fff,
							 5px 5px #fff, -5px -5px #fff, 5px -5px #fff, -5px 5px #fff,
							 6px 6px #fff, -6px -6px #fff, 6px -6px #fff, -6px 6px #fff;
				margin: 5px 0 12px;
			}
			#gwacl .rule select { width: 100px; }
		</style>

		<div id="gwacl">

			<div>
				<input type="checkbox" checked="checked" id="gwacl_enable" onclick="gwacl.toggleSettings( this.checked );" />
				<label for="gwacl_enable">Enable Advanced Conditional Logic</label>
			</div>

			<div id="gwacl-child-settings" class="gws-child-settings">

				<header>
					<div>
						<select data-bind="options: actionTypes,
										   optionsText: 'label',
										   optionsValue: 'value',
										   value: actionType">
						</select>
						<span>this field if:</span>
					</div>
				</header>

				<section id="gwacl-logic-groups">

					<div class="groups" data-bind="foreach: groups">
						<div class="group" data-bind="foreach: rules">
							<div class="rule">
								<select data-bind="options: $parents[1].fields,
												   optionsText:  'label',
												   optionsValue: 'id',
												   value: fieldId">
								</select>
								<select data-bind="options: operators,
								                   optionsText: 'label',
								                   optionsValue: 'key',
								                   value: operator">
								</select>
								<select data-bind="options: choices,
												   optionsText: 'text',
												   optionsValue: 'value',
												   value: value">
								</select>
		                        <span class="actions">
		                            <button class="add" data-bind="click: $parent.addRule">and</button>
		                            <button class="remove" data-bind="click: $parent.removeRule.bind( $data ), visible: $root.hasManyRules">remove</button>
		                        </span>
							</div>
						</div>
					</div>
					<button id="new-group" data-bind="click: addGroup">add rule group</button>

				</section>

			</div>

		</div>

		<?php
	}

	function field_setting_js() {
		?>

		<script type="text/javascript">

			( function( $ ) {

				window.gwacl = {

					$settingsElem:    $( '#gwacl' ),
					$childSettings:   $( '#gwacl-child-settings' ),
					viewModel:        null,

					init: function() {

						$(document).bind( 'gform_load_field_settings', function( event, field, form ) {

							$( '#gwacl_enable' ).attr( 'checked', field['gwaclEnable'] == true );

							gwacl.toggleSettings( field['gwaclEnable'] == true );

						} );

						$( document ).bind( 'gpacl-data-changed', function( event, data ) {
							field.advancedConditionalLogic = data;
						} );

					},

					toggleSettings: function( isChecked ) {

						SetFieldProperty( 'gwaclEnable', isChecked );

						if( isChecked ) {

							gwacl.$childSettings.slideDown();

							var logicData = typeof field.advancedConditionalLogic == 'object' ? field.advancedConditionalLogic : false;

							if( gwacl.viewModel !== null ) {
								gwacl.viewModel.resetData( logicData, field );
							} else {
								gwacl.viewModel = new GroupsModelView( logicData, field );
								ko.applyBindings( gwacl.viewModel );
							}


						} else {

							gwacl.$childSettings.slideUp();
							SetFieldProperty( 'advancedConditionalLogic', null );

						}

					}

				};

				gwacl.init();

				var Rule = function( fieldId, operator, value ) {

					var self = this;

					this.fieldId  = ko.observable( fieldId );
					this.operator = ko.observable( operator );
					this.value    = ko.observable( value );

					this.operators = ko.observableArray( [
						{
							key: 'is',
							label: 'is'
						},
						{
							key: 'isnot',
							label: 'is not'
						},
						{
							key: '>',
							label: 'greater than'
						},
						{
							key: '<',
							label: 'less than'
						},
						{
							key: 'contains',
							label: 'contains'
						},
						{
							key: 'starts_with',
							label: 'starts with'
						},
						{
							key: 'ends_with',
							label: 'end with'
						}
					] );
					this.choices = ko.observableArray( [] );

					this.fieldId.subscribe( function() {

						self.updateChoices();

						gwacl.viewModel.save();

					}, this );

					this.operator.subscribe( function() {
						gwacl.viewModel.save();
					}, this );

					this.value.subscribe( function() {
						gwacl.viewModel.save();
					}, this );

					this.updateChoices = function() {

						var selectedField = GetFieldById( this.fieldId() );
						if( ! selectedField ) {
							return;
						}

						self.choices.removeAll();

						if( selectedField.choices ) {
							$.each( selectedField.choices, function( i, choice ) {
								self.choices.push( choice );
							} );
						}

					};

					self.updateChoices();

				};

				var Group = function( rules ) {

					var self = this;

					// static
					this.actionType = 'show';
					this.logicType  = 'all';

					this.rules = ko.observableArray( rules );

					this.rules.subscribe( function() {
						self.removeGroupWhenNoRules();
						gwacl.viewModel.save();
					} );

					this.addRule = function() {
						this.rules.push( new Rule( '', '', '' ) );
					}.bind( this );

					this.removeRule = function( rule ) {
						this.rules.remove( rule );
					}.bind( this );

					this.removeGroupWhenNoRules = function() {
						if( self.rules().length <= 0 ) {
							self.removeGroup();
						}
					};

					this.removeGroup = function() {
						gwacl.viewModel.groups.remove( self );
					};

				};

				var GroupsModelView = function( data, field ) {

					this.resettingData = false;
					this.fields        = gwGetConditionalLogicFields( form.fields );
					this.groups        = ko.observableArray( [] );
					this.actionType    = ko.observable( data.actionType );

					this.actionTypes   = [
						{
							label: 'Show',
							value: 'show'
						},
						{
							label: 'Hide',
							value: 'hide'
						}
					];

					this.resetData = function( data, field ) {

						this.resettingData = true;

						this.field = field;
						this.actionType( data.actionType );
						this.groups.removeAll();

						if( ! data ) {
							data = {
								actionType: 'show',
								logicType: null,
								groups: [
									{
										actionType: 'show',
										logicType: 'all',
										rules: [
											{
												fieldId: '',
												operator: 'is',
												value: ''
											}
										]
									}
								]
							};
						}

						this.data       = data;

						for( var i = 0; i < data.groups.length; i++ ) {

							var group = data.groups[ i ],
								rules = [];

							for( var j = 0; j < group.rules.length; j++ ) {
								var rule = group.rules[ j ];
								rules.push( new Rule( rule.fieldId, rule.operator, rule.value ) );
							}

							this.groups.push( new Group( rules ) );

						}

						this.resettingData = false;

					}.bind( this );

					this.resetData( data );

					this.addGroup = function() {
						this.groups.push( new Group( [ new Rule( '', '', '' ) ] ) );
					}.bind( this );

					this.hasManyRules = ko.computed( function() {
						return this.groups().length > 1 || ( this.groups().length > 0 && this.groups()[0].rules().length > 1 );
					}, this );

					this.save = function() {
						if( ! this.resettingData ) {
							$( document ).trigger( 'gpacl-data-changed', this.getCleanObject() );
						}
					}.bind( this );

					this.groups.subscribe( function() {
						this.save();
					}, this );

					this.actionType.subscribe( function() {
						this.save();
					}, this );

					this.getCleanObject = function() {

						var json = this.getJSON(),
							data = $.parseJSON( json );

						for( var i = 0; i < data.groups.length; i++ ) {

							var group = data.groups[ i ];

							for( var j = 0; j < group.rules.length; j++ ) {
								var rule = group.rules[ j ];
								delete rule.choices;
								delete rule.operators;
							}

						}

						return data;
					};

					this.getJSON = function() {

						this.data.actionType = this.actionType;
						this.data.groups     = this.groups;

						return ko.toJSON( this.data );
					};

				};

				function gwGetConditionalLogicFields( fields ) {

					var clFields = [];

					for( var i = 0; i < fields.length; i++ ) {
						if( IsConditionalLogicField( fields[ i ] ) ) {
							clFields.push( fields[ i ] );
						}
					}

					return clFields;
				}

			} )( jQuery );

		</script>

		<?php
	}

	function get_advanced_conditional_logic( $form ) {

		$all_adv_logic = array();

		foreach( $form['fields'] as $field ) {

			$adv_logic = $field->advancedConditionalLogic;

			if( ! empty( $adv_logic ) ) {
				$all_adv_logic[ $field['id'] ] = $adv_logic;
			}

		}

		return $all_adv_logic;
	}

    function is_applicable_form( $form ) {

	    $adv_logic = $this->get_advanced_conditional_logic( $form );

        return ! empty( $adv_logic );
    }

}

# Configuration

new GW_Advanced_Conditional_Logic();

Hello David!

Thanks for this plugin! And I love GravityWiz!

I'm trying to use this in a project, but in frontend I'm getting error "jQuery is not defined" on submit the form.

I need to show/hide a couple of required fields based on advanced conditional logic. The fields are been hidden correctly when the conditions didn't match, but the form doesn't send because the fields are empty (because they are required).

Does anyone have any idea?

Cheers

Hi David,

Love it. Just noticed something that could use some help.

Advanced Conditional Logic is incapable of using the Placeholder field in DropDowns for Is/Is Not
Advanced Conditional Logic doesn't allow for Greater Than/Less Than/Contains/Starts With/Ends With to be open values.

Huge time saver so far though. This functionality is one of the major missing links/Holy Grail's for Gravity...

Is there a way to have the advanced options to show up in the email notification settings?

Hey David,

Thanks for the great plugin! This is definitely a must needed feature of Gravity Forms! I too am getting an error "jQuery is not defined" after submitting the form. I've tried a bunch of stuff and am stumped. I imagine it has something to do with a conflict of the new version of Gravity Forms. I would be super appreciative if you could help out and I'm willing to pay for your time. Let me know!

This would be an incredible addition to the Gravity Perks suite. Any updated plans from Gravity Wiz on this? Thanks!

Hi guys, I've extended this and put together a pro version which fixes most of the issues mentioned above and adds support for Page breaks, Notifications and Confirmations (with more features in the works)

It's available at https://mcdonnell.nz/product/gravity-forms-advanced-conditional-logic/

If you have any issues getting it running on your site after purchasing, then I'm happy to help. I'm only an email away.

This seems to break on Gravity Forms 2.4.6

jquery.js:3 Uncaught RangeError: Maximum call stack size exceeded
    at Object.trigger (jquery.js:3)
    at HTMLDocument.<anonymous> (jquery.js:3)
    at Function.each (jquery.js:2)
    at n.fn.init.each (jquery.js:2)
    at n.fn.init.trigger (jquery.js:3)
    at gf_apply_rules (conditional_logic.min.js?ver=2.4.6:1)
    at conditional_logic.min.js?ver=2.4.6:1
    at Object.doHook (gravityforms.min.js?ver=2.4.6:1)
    at Object.doAction (gravityforms.min.js?ver=2.4.6:1)
    at gf_input_change (gravityforms.min.js?ver=2.4.6:1)

Thanks @csalzano! As luck would have it, we were running an upgrade on the server when there was a problem with our cloud provider's administration network, and our site couldn't be started. All sorted now!

Hi David, I'm using gravity form, and also GravityWyz perks, your code seems to solve the limitation of adding multiple conditions (or/and conditions) to show or mask a field.
Does your code take care of applying set of rules to a group of fields ? rather than to enter all the rules for each field that have same conditions ?

@fredm99 No, we don't have a solution for that. And this is a proof-of-concept. I wouldn't rely on this.

Hi, it's not related, but i need to find a solutions. Please let me know if you know the solution. Here it is,

the category option need to be filter based on select a dropdown option. the dropdown option is meta field created bt acf fields. and connet into the category options. now, this options is displaying dynamically using gravity form + custom post type plugin. I just need to show that acf fields in drop down list, and filter the category option if the acf field is in that option or not. Is it possible.

Sorry to post here.

Hi, I am having an issue with the plugin working on a form that I inserted the default values into via the URL. I get this console error:
Uncaught RangeError: Maximum call stack size exceeded
at a.fn.init.a.fn.find (jquery-migrate.min.js:2)
at gf_reset_to_default (conditional_logic.min.js:1)
at gf_do_action (conditional_logic.min.js:1)
at gf_do_field_action (conditional_logic.min.js:1)
at gf_apply_field_rule (conditional_logic.min.js:1)
at gf_apply_rules (conditional_logic.min.js:1)
at conditional_logic.min.js:1
at Object.doHook (gravityforms.min.js:1)
at Object.doAction (gravityforms.min.js:1)
at gf_input_change (gravityforms.min.js:1)

Hi David, just added the snippet but don't see any changes. I realize it is not supported.
Two fold questions. Are there plans to add it as a perk in the future for GW customers?
Perhaps I am missing something and don't realize how to enable this functionality.
I still just see regular conditional logic under Advanced tab.
Would like to use a combination of Any and All statements.
Thank you!

@bsmaha We do not have plans to develop this as a perk. The Gravity Forms team has plans to beef up their conditional logic and we agree that this is better placed in core.

Once installed, this should add a new setting on your fields that support conditional logic, "Enable Advanced Conditional Logic". I haven't tested this code in years though so it's quite possible that it is no longer working.

Ok, thank you. I agree it makes more sense in core.

…

On Tue, May 25, 2021, 6:51 AM David Smith ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ @bsmaha <https://github.com/bsmaha> We do not have plans to develop this as a perk. The Gravity Forms team has plans to beef up their conditional logic and we agree that this is better placed in core. Once installed, this *should* add a new setting on your fields that support conditional logic, "Enable Advanced Conditional Logic". I haven't tested this code in years though so it's quite possible that it is no longer working. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <https://gist.github.com/79f82d340942fd33fa05c263754f8663#gistcomment-3756142>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABA3QDVYTBPEACBELZZANTDTPN6LXANCNFSM4IGLLHHA> .

Hi, unfortunately the integration in the core seems to take more years (that's how long it's been in planning). It would be great if the snippet would work again.
Many thanks for considering my request.
Many greetings