Boot Strap Theme search not working for filtering column and global search

[sephinah]

public function add_students() { $crud = new grocery_CRUD(); $crud->set_theme('bootstrap');

		$crud->set_table('studentdb');


	
		$crud->columns('LRN','year_section','yearLevel','section_list','studentLastName','studentFirstName','studentMiddleName','phone','address','guardian','contactNo');

		$crud->display_as('studentLastName','Last Name')
			 ->display_as('studentFirstName','First Name')
			 ->display_as('studentMiddleName','Middle Name')
			 ->display_as('phone',"Tel. No. / Phone No.")
			 ->display_as('LRN',"Learner's Reference Number")
			 ->display_as('guardian',"Parent / Guardian")
			 ->display_as('contactNo',"Contact No. In Case of Emergency");


		$crud->set_subject('List of Students');
		

		**$crud->set_relation('year_section','section_list','{yearLevel} {year_section}');**

		
		//$crud->set_table('film');

//$crud->set_relation_n_n('actors', 'film_actor', 'actor', 'film_id', 'actor_id', 'fullname','priority'); //$crud->set_relation_n_n('category', 'film_category', 'category', 'film_id', 'category_id', 'name');

		 //$crud->field_type('LRN','readonly');
		 //$crud->field_type('studentLastName','readonly');
		 //$crud->field_type('studentFirstName','readonly');
		 //$crud->field_type('studentMiddleName','readonly');
		
		$crud->field_type('lowest_rating','invisible');
		$crud->field_type('percentage_value','invisible');
		$crud->field_type('percentage_standard','invisible');
		 
		$crud->field_type('written_works','invisible');
		$crud->field_type('performance_task','invisible');
		$crud->field_type('quarter_exam','invisible');

		 //$crud->field_type('average','readonly');
		 //$crud->field_type('final_average','readonly');


		$crud->callback_before_insert(array($this,'get_average'));
		$crud->callback_before_update(array($this,'get_average'));

		$output = $crud->render();

		$this->_studentroll_output($output);
}

function get_average($post_array) {

$post_array['quarter_exam'] = 20; $post_array['performance_task'] = 60; $post_array['written_works'] = 20; $post_array['lowest_rating'] = 60; $post_array['percentage_standard'] = 100; $post_array['percentage_value'] = ($post_array['percentage_standard'] - $post_array['lowest_rating']);

//$post_array['mean_written'] = ($post_array['total_score'] / $post_array['total_item']) * $post_array['lowest_rating'] + //$post_array['percentage_value']; //$post_array['average'] = $post_array['mean_written'] + $post_array['mean_performance'] + $post_array['mean_quarter'];

//$post_array['mean_written'] = (($post_array['written_total_score'] / $post_array['written_total_item']) * ($post_array['percentage_value'] + $post_array['lowest_rating']) * ($post_array['written_works'] / 100));

//$post_array['mean_performance'] = (($post_array['performance_total_score'] / $post_array['performance_total_item']) * ($post_array['percentage_value'] + $post_array['lowest_rating']) * ($post_array['performance_task'] / 100));

//$post_array['mean_quarter'] = (($post_array['quarter_total_score'] / $post_array['quarter_total_item']) * ($post_array['percentage_value'] + $post_array['lowest_rating']) * ($post_array['quarter_exam'] / 100));

//$post_array['average'] = $post_array['mean_written']+$post_array['mean_performance']+$post_array['mean_quarter'];

//$post_array['final_average'] = $post_array['mean_written']+$post_array['mean_performance']+$post_array['mean_quarter'];

return $post_array; }

I am using using $crud->set_relation('year_section','section_list','{yearLevel} {year_section}'); in here the rest are working, when i switch my theme in "flexigrid" the "search all" is not working as well. But in "datatables" theme all is working fine.

Please help Thanks! God Bless.!