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Pull Request — master (#804)
by Gabriel
64:46
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ValidationDispatcher.dispatchIfChanged   A

↳ Parent: app/js/lib/validation_dispatchers/base.js

Complexity

Conditions 2
Paths 2

Size

Total Lines 12

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 2
nc 2
nop 2
dl 0
loc 12
rs 9.4285
c 1
b 0
f 0
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'use strict';
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @module redux_validation

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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var _ = require( 'underscore' ),

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 * The dispatcher checks the form content for fields given in the `fields` property.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 * If they have changed (compared to their equivalent in the `previousFieldValues` property),

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 * the `validationFunction` is called with an object with the selected fields.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 * If the validation result is not null, it is sent to the store via the `actionCreationFunction`.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 * @class ValidationDispatcher

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	 */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	ValidationDispatcher = {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		validationFunction: null,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		actionCreationFunction: null,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		fields: null,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		previousFieldValues: {},

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		 *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		 * @param {Object} formValues

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		 * @param {Store} store

            


            
                                                                                                            
                            
            
                                    
            
            

                
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		 * @returns {*} Action object or null

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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		 */

            


            
                                                                        
                            
            
                                    
            
            

                
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		dispatchIfChanged: function ( formValues, store ) {

            


            
                                                                        
                            
            
                                    
            
            

                
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			var selectedValues = _.pick( formValues, this.fields ),

            


            
                                                                        
                            
            
                                    
            
            

                
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				validationResult;

            


            
                                                                        
                            
            
                                    
            
            

                
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			if ( _.isEqual( this.previousFieldValues, selectedValues ) ) {

            


            
                                                                        
                            
            
                                    
            
            

                
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				return;

            


            
                                                                        
                            
            
                                    
            
            

                
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			}

            


            
                                                                        
                            
            
                                    
            
            

                
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			this.previousFieldValues = selectedValues;

            


            
                                                                        
                            
            
                                    
            
            

                
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			validationResult = this.validationFunction( selectedValues );

            


            
                                                                        
                            
            
                                    
            
            

                
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			return store.dispatch( this.actionCreationFunction( validationResult ) );

            


            
                                                                        
                            
            
                                    
            
            

                
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		}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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	};

            


            
                                                                                                            
                            
            
                                    
            
            

                
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module.exports = ValidationDispatcher;

            


            
                                                        
            
                                    
            
            

                
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