improve filter method, add forceExactMatch

src/Column.php

@@ -50,7 +50,19 @@ class Column
      * Custom filter
      * @var \Closure
      */
-    public $customFilter;
+    public $customIndividualFilter;
+
+    /**
+     * Custom filter
+     * @var \Closure
+     */
+    public $customGlobalFilter;
+
+    /**
+     *
+     * @var string
+     */
+    public $customFilterType;
 
     /**
      * Column constructor.
@@ -82,7 +94,7 @@ public function value($row): string
      * Set visibility of the column.
      * @param bool $searchable
      */
-    public function hide($searchable = false): void
+    public function hide(bool $searchable = false): void
     {
         $this->hidden = true;
         $this->forceSearch = $searchable;
@@ -91,9 +103,17 @@ public function hide($searchable = false): void
     /**
      * @return bool
      */
-    public function hasFilter(): bool
+    public function hasCustomIndividualFilter(): bool
+    {
+        return $this->customIndividualFilter instanceof \Closure;
+    }
+
+    /**
+     * @return bool
+     */
+    public function hasCustomGlobalFilter(): bool
     {
-        return $this->customFilter instanceof \Closure;
+        return $this->customGlobalFilter instanceof \Closure;
     }
 
     /**

src/CustomFilterType.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Ozdemir\Datatables;
+
+class CustomFilterType
+{
+    const INDIVIDUAL = 'individual';
+    const GLOBALLY = 'globally';
+    const ALL = 'all';
+}

src/DB/DBAdapter.php

@@ -10,6 +10,7 @@
 
 abstract class DBAdapter implements DatabaseInterface
 {
+    public $exactMatch = false;
 
     /**
      * @return void
@@ -64,17 +65,46 @@ public function makeWhereString(array $filter)
         return ' WHERE '.implode(' AND ', $filter);
     }
 
+
+    /**
+     * @return bool
+     */
+    public function isExactMatch()
+    {
+        return $this->exactMatch;
+    }
+
+    /**
+     * @param bool $value
+     * @return void
+     */
+    public function setExactMatch(bool $value)
+    {
+        $this->exactMatch = $value;
+    }
+
     /**
      * @param Query $query
      * @param Column $column
-     * @param $word
+     * @param string $word
      * @return string
      */
     public function makeLikeString(Query $query, Column $column, string $word)
     {
         return $column->name.' LIKE '.$this->escape('%'.$word.'%', $query);
     }
 
+     /**
+     * @param Query $query
+     * @param Column $column
+     * @param string $word
+     * @return string
+     */
+    public function makeEqualString(Query $query, Column $column, string $word)
+    {
+        return $column->name.' = '.$this->escape( $word, $query);
+    }
+
     /**
      * @param array $o
      * @return string

src/DB/DatabaseInterface.php

@@ -54,6 +54,17 @@ public function makeDistinctQueryString(Query $query, string $column);
      */
     public function makeWhereString(array $filter);
 
+    /**
+     * @param bool $value
+     * @return void
+     */
+    public function setExactMatch(bool $value);
+
+    /**
+     * @return mixed
+     */
+    public function isExactMatch();
+
     /**
      * @param Query $query
      * @param Column $column
@@ -62,6 +73,15 @@ public function makeWhereString(array $filter);
      */
     public function makeLikeString(Query $query, Column $column, string $word);
 
+
+    /**
+     * @param Query $query
+     * @param Column $column
+     * @param string $word
+     * @return mixed
+     */
+    public function makeEqualString(Query $query, Column $column, string $word);
+
     /**
      * @param array $o
      * @return mixed

src/Datatables.php

@@ -110,10 +110,18 @@ public function edit($column, Closure $closure): Datatables
      * @param Closure $closure
      * @return Datatables
      */
-    public function filter($column, Closure $closure): Datatables
+    public function filter($column, Closure $closure, $filterType = CustomFilterType::INDIVIDUAL): Datatables
     {
         $column = $this->columns->getByName($column);
-        $column->customFilter = $closure;
+        $column->customIndividualFilter = $closure;
+
+        $column->customFilterType = $filterType;
+        if ($filterType !== CustomFilterType::GLOBALLY) {
+            $column->customIndividualFilter = $closure;
+        }
+        if ($filterType !== CustomFilterType::INDIVIDUAL) {
+            $column->customGlobalFilter = $closure;
+        }
 
         return $this;
     }
@@ -130,6 +138,17 @@ public function escape($key, $value): Datatables
         return $this;
     }
 
+    /**
+     * @param bool $value
+     * @return Datatables
+     */
+    public function forceExactMatch(bool $value): Datatables
+    {
+        $this->db->setExactMatch($value);
+
+        return $this;
+    }
+
     /**
      * @param $name
      * @return Datatables

src/FilterHelper.php

@@ -24,17 +24,24 @@ class FilterHelper
      */
     private $db;
 
+    /**
+     * @var string|null
+     */
+    private $searchValue;
+
+
     /**
      * FilterHelper constructor.
      * @param Query $query
      * @param Column $column
      * @param DatabaseInterface $db
      */
-    public function __construct(Query $query, Column $column, DatabaseInterface $db)
+    public function __construct(Query $query, Column $column, DatabaseInterface $db, $searchValue = null)
     {
         $this->query = $query;
         $this->column = $column;
         $this->db = $db;
+        $this->searchValue = $searchValue;
     }
 
     /**
@@ -51,14 +58,18 @@ public function escape($value): string
      */
     public function searchValue(): string
     {
-        return $this->column->searchValue();
+        return $this->searchValue ?? $this->column->searchValue();
     }
 
     /**
      * @return string
      */
     public function defaultFilter(): string
     {
+        if ($this->db->isExactMatch()) {
+            return $this->db->makeEqualString($this->query, $this->column, $this->searchValue());
+        }
+
         return $this->db->makeLikeString($this->query, $this->column, $this->searchValue());
     }
 
@@ -116,4 +127,4 @@ public function lessThan($value): string
         return $this->column->name.' <= '.$this->escape($value);
     }
 
-}
+}

src/Iterators/IndividualSearchableColumns.php

@@ -17,6 +17,6 @@ class IndividualSearchableColumns extends FilterIterator
      */
     public function accept(): bool
     {
-        return $this->current()->searchValue() !== '' || $this->current()->hasFilter();
+        return $this->current()->searchValue() !== '' || $this->current()->hasCustomIndividualFilter();
     }
-}
+}

src/QueryBuilder.php

@@ -231,9 +231,11 @@ protected function filterGlobal(Query $query): string
             $look = [];
 
             foreach ($columns as $column) {
-                $look[] = $this->db->makeLikeString($query, $column, $word);
+                $look[] = $this->columnGlobalFilter($column, new FilterHelper($query, $column, $this->db, $word));
             }
 
+            $look = array_filter($look);
+
             $search[] = '('.implode(' OR ', $look).')';
         }
 
@@ -250,7 +252,7 @@ protected function filterIndividual(Query $query): string
         $look = [];
 
         foreach ($columns as $column) {
-            $look[] = $this->columnFilter($column, new FilterHelper($query, $column, $this->db));
+            $look[] = $this->columnIndividualFilter($column, new FilterHelper($query, $column, $this->db));
         }
 
         $look = array_filter($look);
@@ -319,10 +321,24 @@ public function defaultOrder(): string
      * @param FilterHelper $helper
      * @return string
      */
-    public function columnFilter(Column $column, FilterHelper $helper): string
+    public function columnIndividualFilter(Column $column, FilterHelper $helper): string
+    {
+        if ($column->hasCustomIndividualFilter()) {
+            return $column->customIndividualFilter->call($helper) ?? $helper->defaultFilter();
+        }
+
+        return $helper->defaultFilter();
+    }
+
+    /**
+     * @param Column $column
+     * @param FilterHelper $helper
+     * @return string
+     */
+    public function columnGlobalFilter(Column $column, FilterHelper $helper): string
     {
-        if ($column->hasFilter()) {
-            return $column->customFilter->call($helper) ?? $helper->defaultFilter();
+        if ($column->hasCustomGlobalFilter()) {
+            return $column->customGlobalFilter->call($helper) ?? $helper->defaultFilter();
         }
 
         return $helper->defaultFilter();