introduce possibility to persist search string in session

Author: Herbert Maschke

README.md

@@ -52,7 +52,7 @@ somewhere in your CSS
 ```html
 ...
 
-<livewire:datatable model="App\User" />
+<livewire:datatable model="App\User" name="all-my-users" />
 
 ...
 ```
@@ -62,11 +62,15 @@ somewhere in your CSS
 ```html
 <livewire:datatable
     model="App\User"
+    name="users"
     include="id, name, dob, created_at"
     dates="dob"
 />
 ```
 
+- *Attention*: Please not that having multiple datatables on the same page _or_ more than one datatable of the same type on different pages needs to have a unique `name` attribute assigned to each one so they do not conflict with each other
+as in the example above.
+
 ### Props
 | Property | Arguments | Result | Example |
 |----|----|----|----|
@@ -100,7 +104,6 @@ somewhere in your CSS
 
 ### Declare a public method ```columns``` that returns an array containing one or more ```Mediconesystems\LivewireDatatables\Column```
 
-
 ## Columns
 Columns can be built using any of the static methods below, and then their attributes assigned using fluent method chains.
 There are additional specific types of Column; ```NumberColumn```, ```DateColumn```, ```TimeColumn```, using the correct one for your datatype will enable type-specific formatting and filtering:

src/Http/Livewire/LivewireDatatable.php

@@ -61,7 +61,8 @@ class LivewireDatatable extends Component
     public $name;
     public $columnGroups = [];
     public $userFilter;
-    public $persistComplexQuery;
+    public $persistSearch = true;
+    public $persistComplexQuery = true;
     public $persistHiddenColumns = true;
     public $persistSort = true;
     public $persistPerPage = true;
@@ -127,7 +128,18 @@ public function applyToTable($options)
             }
         }
 
-        foreach (['perPage', 'search', 'activeSelectFilters', 'activeDateFilters', 'activeTimeFilters', 'activeBooleanFilters', 'activeTextFilters', 'activeNumberFilters', 'hide', 'selected'] as $property) {
+        foreach ([
+            'perPage',
+            'search',
+            'activeSelectFilters',
+            'activeDateFilters',
+            'activeTimeFilters',
+            'activeBooleanFilters',
+            'activeTextFilters',
+            'activeNumberFilters',
+            'hide',
+            'selected',
+        ] as $property) {
             if (isset($options[$property])) {
                 $this->$property = $options[$property];
             }
@@ -175,21 +187,47 @@ public function mount(
         $afterTableSlot = false,
         $params = []
     ) {
-        foreach (['model', 'include', 'exclude', 'hide', 'dates', 'times', 'searchable', 'sort', 'hideHeader', 'hidePagination', 'exportable', 'hideable', 'beforeTableSlot', 'afterTableSlot'] as $property) {
+        foreach ([
+            'model',
+            'include',
+            'exclude',
+            'hide',
+            'dates',
+            'times',
+            'searchable',
+            'sort',
+            'hideHeader',
+            'hidePagination',
+            'exportable',
+            'hideable',
+            'beforeTableSlot',
+            'afterTableSlot',
+        ] as $property) {
             $this->$property = $this->$property ?? $$property;
         }
 
         $this->params = $params;
 
         $this->columns = $this->getViewColumns();
 
+        $this->initialiseSearch();
         $this->initialiseSort();
         $this->initialiseHiddenColumns();
         $this->initialiseFilters();
         $this->initialisePerPage();
         $this->initialiseColumnGroups();
     }
 
+    // save settings
+    public function dehydrate()
+    {
+        if ($this->persistSearch) {
+            session()->put($this->sessionStorageKey() . '_search', $this->search);
+        }
+
+        return parent::dehydrate(); // @phpstan-ignore-line
+    }
+
     public function columns()
     {
         return $this->modelInstance;
@@ -465,7 +503,7 @@ public function getFreshColumnsProperty()
 
     public function sessionStorageKey()
     {
-        return Str::snake(Str::afterLast(get_called_class(), '\\'));
+        return Str::snake(Str::afterLast(get_called_class(), '\\')) . $this->name;
     }
 
     public function getSessionStoredSort()
@@ -474,8 +512,8 @@ public function getSessionStoredSort()
             return;
         }
 
-        $this->sort = session()->get($this->sessionStorageKey() . $this->name . '_sort', $this->sort);
-        $this->direction = session()->get($this->sessionStorageKey() . $this->name . '_direction', $this->direction);
+        $this->sort = session()->get($this->sessionStorageKey() . '_sort', $this->sort);
+        $this->direction = session()->get($this->sessionStorageKey() . '_direction', $this->direction);
     }
 
     public function getSessionStoredPerPage()
@@ -493,7 +531,10 @@ public function setSessionStoredSort()
             return;
         }
 
-        session()->put([$this->sessionStorageKey() . $this->name . '_sort' => $this->sort, $this->sessionStorageKey() . $this->name . '_direction' => $this->direction]);
+        session()->put([
+            $this->sessionStorageKey() . '_sort' => $this->sort,
+            $this->sessionStorageKey() . '_direction' => $this->direction,
+        ]);
     }
 
     public function setSessionStoredFilters()
@@ -503,7 +544,7 @@ public function setSessionStoredFilters()
         }
 
         session()->put([
-            $this->sessionStorageKey() . $this->name . '_filter' => [
+            $this->sessionStorageKey() . '_filter' => [
                 'text' => $this->activeTextFilters,
                 'boolean' => $this->activeBooleanFilters,
                 'select' => $this->activeSelectFilters,
@@ -514,6 +555,15 @@ public function setSessionStoredFilters()
         ]);
     }
 
+    public function initialiseSearch()
+    {
+        if (! $this->persistSearch) {
+            return;
+        }
+
+        $this->search = session()->get($this->sessionStorageKey() . '_search', $this->search);
+    }
+
     public function initialiseSort()
     {
         $this->sort = $this->defaultSort()
@@ -532,9 +582,9 @@ public function initialiseHiddenColumns()
             return;
         }
 
-        if (session()->has($this->sessionStorageKey() . $this->name . '_hidden_columns')) {
+        if (session()->has($this->sessionStorageKey() . '_hidden_columns')) {
             $this->columns = collect($this->columns)->map(function ($column, $index) {
-                $column['hidden'] = in_array($index, session()->get($this->sessionStorageKey() . $this->name . '_hidden_columns'));
+                $column['hidden'] = in_array($index, session()->get($this->sessionStorageKey() . '_hidden_columns'));
 
                 return $column;
             })->toArray();
@@ -565,7 +615,7 @@ public function initialiseFilters()
             return;
         }
 
-        $filters = session()->get($this->sessionStorageKey() . $this->name . '_filter');
+        $filters = session()->get($this->sessionStorageKey() . '_filter');
 
         $this->activeBooleanFilters = $filters['boolean'] ?? [];
         $this->activeSelectFilters = $filters['select'] ?? [];
@@ -651,8 +701,10 @@ public function sort($index, $direction = null)
         }
         $this->page = 1;
 
-        $key = Str::snake(Str::afterLast(get_called_class(), '\\'));
-        session()->put([$key . $this->name . '_sort' => $this->sort, $key . $this->name . '_direction' => $this->direction]);
+        session()->put([
+            $this->sessionStorageKey() . '_sort' => $this->sort,
+            $this->sessionStorageKey() . '_direction' => $this->direction,
+        ]);
     }
 
     public function toggle($index)
@@ -670,7 +722,7 @@ public function toggle($index)
         if ($this->persistHiddenColumns) {
             $hidden = collect($this->columns)->filter->hidden->keys()->toArray();
 
-            session()->put([$this->sessionStorageKey() . $this->name . '_hidden_columns' => $hidden]);
+            session()->put([$this->sessionStorageKey() . '_hidden_columns' => $hidden]);
         }
     }
 
@@ -1472,7 +1524,7 @@ public function render()
         $this->emit('refreshDynamic');
 
         if ($this->persistPerPage) {
-            session()->put([$this->sessionStorageKey() . $this->name . '_perpage' => $this->perPage]);
+            session()->put([$this->sessionStorageKey() . '_perpage' => $this->perPage]);
         }
 
         return view('datatables::datatable')->layoutData(['title' => $this->title]);