added 'keywords_string' global search type

Author: zoupme

Datatable/Options.php

@@ -318,7 +318,7 @@ public function configureOptions(OptionsResolver $resolver)
         $resolver->setAllowedTypes('global_search_type', 'string');
 
         $resolver->setAllowedValues('individual_filtering_position', array('head', 'foot', 'both'));
-        $resolver->setAllowedValues('global_search_type', array('like', '%like', 'like%', 'notLike', 'eq', 'neq', 'lt', 'lte', 'gt', 'gte', 'in', 'notIn', 'isNull', 'isNotNull'));
+        $resolver->setAllowedValues('global_search_type', array('like', 'keywords_string', '%like', 'like%', 'notLike', 'eq', 'neq', 'lt', 'lte', 'gt', 'gte', 'in', 'notIn', 'isNull', 'isNotNull'));
 
         return $this;
     }

Resources/doc/options.md

@@ -26,7 +26,7 @@ With 'null' initialized options uses the default value of the DataTables plugin.
 | individual_filtering          | bool               | false     | Enable or disable individual filtering. |
 | individual_filtering_position | string             | 'head'    | Position of individual search filter ('head', 'foot' or 'both'). |
 | search_in_non_visible_columns | bool               | false     | Determines whether to search in non-visible columns. |
-| global_search_type            | string             | 'like'    | The global search type (example: 'eq'). |
+| global_search_type            | string             | 'like'    | The global search type (example: 'eq'). Use 'keywords_string' to search by multiple keywords. |
 
 ``` php
 class PostDatatable extends AbstractDatatable

Response/DatatableQueryBuilder.php

@@ -411,45 +411,77 @@ private function setJoins(QueryBuilder $qb)
      */
     private function setWhere(QueryBuilder $qb)
     {
+        // Retrieving parameter counter
+        $parameterCounter = self::INIT_PARAMETER_COUNTER;
+        
         // global filtering
         if (isset($this->requestParams['search']) && '' != $this->requestParams['search']['value']) {
-            $orExpr = $qb->expr()->orX();
 
             $globalSearch = $this->requestParams['search']['value'];
             $globalSearchType = $this->options->getGlobalSearchType();
 
-            foreach ($this->columns as $key => $column) {
-                if (true === $this->isSearchableColumn($column)) {
-                    /** @var AbstractFilter $filter */
-                    $filter = $this->accessor->getValue($column, 'filter');
-                    $searchType = $globalSearchType;
-                    $searchField = $this->searchColumns[$key];
-                    $searchValue = $globalSearch;
-                    $searchTypeOfField = $column->getTypeOfField();
-                    $orExpr = $filter->addOrExpression($orExpr, $qb, $searchType, $searchField, $searchValue, $searchTypeOfField, $key);
-                }
+            // If global search type is a list of key words
+            if ($globalSearchType == 'keywords_string') {
+                
+                // Removing unnecessary spaces at the beginning and at the end
+                $globalSearch = trim($globalSearch);
+                
+                // Removing multiples spaces
+                $globalSearch = preg_replace('!\s+!', ' ', $globalSearch);
+                
+                // Parsing search value to array of keywords
+                $keywords = explode(' ', $globalSearch);
+                
+                // Setting type of search type to 'like'
+                $globalSearchType = 'like';
+            
+            // Else considering only one searchstring
+            } else {
+                $keywords = [$globalSearch];
             }
-
-            if ($orExpr->count() > 0) {
-                $qb->andWhere($orExpr);
+            
+            // Iterating through each keyword
+            foreach ($keywords as $k => $word) {
+                
+                // Initialising 'OR' expression
+                $orExpr = $qb->expr()->orX();
+                
+                // Iterating through columns
+                foreach ($this->columns as $key => $column) {
+                    
+                    if (true === $this->isSearchableColumn($column)) {
+                        /** @var AbstractFilter $filter */
+                        $filter = $this->accessor->getValue($column, 'filter');
+                        $searchType = $globalSearchType;
+                        $searchFields = (array) $this->searchColumns[$key];
+                        $searchValue = $keywords[$k];
+                        $searchTypeOfField = $column->getTypeOfField();
+                        foreach ($searchFields as $searchField) {
+                            $orExpr = $filter->addOrExpression($orExpr, $qb, $searchType, $searchField, $searchValue, $searchTypeOfField, $parameterCounter);
+                        }
+                    }
+                }
+                
+                // Adding 'OR' expression to global 'WHERE'
+                if ($orExpr->count() > 0) {
+                    $qb->andWhere($orExpr);
+                }
             }
         }
 
         // individual filtering
         if (true === $this->accessor->getValue($this->options, 'individualFiltering')) {
             $andExpr = $qb->expr()->andX();
 
-            $parameterCounter = DatatableQueryBuilder::INIT_PARAMETER_COUNTER;
-
             foreach ($this->columns as $key => $column) {
                 if (true === $this->isSearchableColumn($column)) {
-                    if (false === array_key_exists($key, $this->requestParams['columns'])) {
+                    if (false === \array_key_exists($key, $this->requestParams['columns'])) {
                         continue;
                     }
 
                     $searchValue = $this->requestParams['columns'][$key]['search']['value'];
 
-                    if ('' != $searchValue && 'null' != $searchValue) {
+                    if ('' !== $searchValue && 'null' !== $searchValue) {
                         /** @var FilterInterface $filter */
                         $filter = $this->accessor->getValue($column, 'filter');
                         $searchField = $this->searchColumns[$key];