如何将参数传递给渲染图像crud的函数

时间:2022-12-08 00:22:16
//inside admin controller    
public function pictures($table)
{ 
    $image = new image_CRUD();
    $image  ->  set_table($table)
            ->  set_url_field('name')
            ->  set_title_field('title')
            //->  set_ordering_field('priority')
            ->  set_image_path('assets/uploads');
    $output = $image -> render();            
    $this->view_output('images/main.php',$image -> render());
}

url: localhost/my_site/admin/pictures/photos and I get a bunch of errors for undefined variable of css_files and js_files and invalid argument for foreach(). when url is localhost/my_site/admin/pictures and the code is as below, it works perfect.

url:localhost / my_site / admin / pictures / photos我得到了一堆css_files和js_files的未定义变量的错误以及foreach()的无效参数。当url是localhost / my_site / admin / pictures并且代码如下所示,它完美无缺。

//inside admin controller    
public function pictures()
{ 
    $image = new image_CRUD();
    $image  ->  set_table('photos')
            ->  set_url_field('name')
            ->  set_title_field('title')
            //->  set_ordering_field('priority')
            ->  set_image_path('assets/uploads');
    $output = $image -> render();            
    $this->view_output('images/main.php',$image -> render());
}

The problem is while using codeigniter's method of passing arguments on image crud rendering function. While using normal method of php as http://localhost/my_site/admin/pictures?table=photos and the code is as below, it works, BUT I can't upload images this way,there will be upload error.

问题是使用codeigniter的方法在图像crud渲染函数上传递参数。虽然使用普通的php方法作为http:// localhost / my_site / admin / pictures?table = photos并且代码如下,但是有效,但是我无法通过这种方式上传图片,会有上传错误。

public function pictures()
{        
        $image = new image_CRUD();
        $table = $_GET['table'];
        $image  ->  set_table($table)
        ......
}

How can I pass arguments as I stated first?

我怎么能像我先说的那样传递论据?

OK I got the solution. Previously the library image_crud.php getState() function did not have the condition for uri segment being other than numberic,'upload_file', 'ajax_list', 'ordering' and 'insert_title'. So the error was due to not finding the suitable condition and code didn't execute. Below given code must be added to the library:image_crud.php line 477:

好的,我得到了解决方案。以前库image_crud.php getState()函数没有uri段不是numberic,'upload_file','ajax_list','ordering'和'insert_title'的条件。所以错误是由于没有找到合适的条件而代码没有执行。下面给出的代码必须添加到库中:image_crud.php第477行:

else
        {
            $upload_url = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/upload_file');
            $ajax_list_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/ajax_list');
            $ordering_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/ordering');
            $insert_title_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/insert_title');

            $state = array( 'name' => 'list', 'upload_url' => $upload_url);
            $state['ajax'] = isset($rsegments_array[3]) && $rsegments_array[3] == 'ajax_list'  ? true : false;
            $state['ajax_list_url'] = $ajax_list_url;
            $state['ordering_url'] = $ordering_url;
            $state['insert_title_url'] = $insert_title_url;

            return (object)$state;
        }

Okay this way has got a error while uploading files.

好的,这种方式在上传文件时出错了。

Previously while uploading files (while we dont have 3rd uri segment), it adds extra segments on the 3rd uri to define the state of the image_crud. I modified it to work while having 3rd uri segment.So in this case, I have a two conditions. First while having third uri segment and second, not having third uri segment. So $extra_segments variable is set to false( false for no extra segments,i.e localhost/my_site/admin/pictures in my case) while we don't have 3rd uri segment. For checking 3rd uri segment, the function set_table of image_crud.phpis modified as:

以前在上传文件时(虽然我们没有第3个uri段),但它会在第3个uri上添加额外的段来定义image_crud的状态。我有第三uri段修改它工作。所以在这种情况下,我有两个条件。首先是第三个uri段和第二个,没有第三个uri段。因此$ extra_segments变量设置为false(假设没有额外的段,即我的情况下为localhost / my_site / admin / pictures),而我们没有第3个uri段。为了检查第3个uri段,将image_crud.php的函数set_table修改为:

function set_table($table_name)
{
    $this->table_name = $table_name;

    if($table_name == $this->ci->uri->segment(3))
    {
        $this->extra_segments = true;
    }

    return $this;
}

also variable is to be declared inside image_crud class(on line 47 I did) as: protected $extra_segments = false; Now for actual work, getState() function is modified as below. It can be furthur optimised to make it dry and modular.

还要在image_crud类中声明变量(我在第47行):protected $ extra_segments = false;现在进行实际工作,getState()函数修改如下。它可以进一步优化,使其干燥和模块化。

protected function getState()
{
    $rsegments_array = $this->ci->uri->rsegment_array();

    if($this->extra_segments == true){

        if(isset($rsegments_array[4]) && is_numeric($rsegments_array[4]))
        {
            $upload_url = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/upload_file/'.$rsegments_array[3]);
            $ajax_list_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/'.$rsegments_array[3].'/ajax_list');
            $ordering_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/ordering');
            $insert_title_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/insert_title');

            $state = array( 'name' => 'list', 'upload_url' => $upload_url, 'relation_value' => $rsegments_array[4]);
            $state['ajax'] = isset($rsegments_array[5]) && $rsegments_array[5] == 'ajax_list'  ? true : false;
            $state['ajax_list_url'] = $ajax_list_url;
            $state['ordering_url'] = $ordering_url;
            $state['insert_title_url'] = $insert_title_url;


            return (object)$state;
        }
        elseif( (empty($rsegments_array[4]) && empty($this->relation_field)) || (!empty($rsegments_array[4]) &&  $rsegments_array[4] == 'ajax_list'))
        {
            $upload_url = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/upload_file');
            $ajax_list_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/ajax_list');
            $ordering_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/ordering');
            $insert_title_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/insert_title');

            $state = array( 'name' => 'list', 'upload_url' => $upload_url);
            $state['ajax'] = isset($rsegments_array[4]) && $rsegments_array[4] == 'ajax_list'  ? true : false;
            $state['ajax_list_url'] = $ajax_list_url;
            $state['ordering_url'] = $ordering_url;
            $state['insert_title_url'] = $insert_title_url;

            return (object)$state;
        }
        elseif(isset($rsegments_array[4]) && $rsegments_array[4] == 'upload_file')
        {
            #region Just rename my file
                $new_file_name = '';
                //$old_file_name = $this->_to_greeklish($_GET['qqfile']);
                $old_file_name = $this->_convert_foreign_characters($_GET['qqfile']);
                $max = strlen($old_file_name);
                for($i=0; $i< $max;$i++)
                {
                    $numMatches = preg_match('/^[A-Za-z0-9.-_]+$/', $old_file_name[$i], $matches);
                    if($numMatches >0)
                    {
                        $new_file_name .= strtolower($old_file_name[$i]);
                    }
                    else
                    {
                        $new_file_name .= '-';
                    }
                }
                $file_name = substr( substr( uniqid(), 9,13).'-'.$new_file_name , 0, 100) ;
            #endregion

            $results = array( 'name' => 'upload_file', 'file_name' => $file_name);
            if(isset($rsegments_array[5]) && is_numeric($rsegments_array[5]))
            {
                $results['relation_value'] = $rsegments_array[5];
            }
            return (object)$results;
        }
        elseif(isset($rsegments_array[4]) && isset($rsegments_array[5]) && $rsegments_array[4] == 'delete_file' && is_numeric($rsegments_array[5]))
        {
            $state = array( 'name' => 'delete_file', 'id' => $rsegments_array[4]);
            return (object)$state;
        }
        elseif(isset($rsegments_array[4]) && $rsegments_array[4] == 'ordering')
        {
            $state = array( 'name' => 'ordering');
            return (object)$state;
        }
        elseif(isset($rsegments_array[4]) && $rsegments_array[4] == 'insert_title')
        {
            $state = array( 'name' => 'insert_title');
            return (object)$state;
        }
        else
        {
            $upload_url = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/upload_file');
            $ajax_list_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/ajax_list');
            $ordering_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/ordering');
            $insert_title_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/insert_title');

            $state = array( 'name' => 'list', 'upload_url' => $upload_url);
            $state['ajax'] = isset($rsegments_array[4]) && $rsegments_array[4] == 'ajax_list'  ? true : false;
            $state['ajax_list_url'] = $ajax_list_url;
            $state['ordering_url'] = $ordering_url;
            $state['insert_title_url'] = $insert_title_url;

            return (object)$state;
        }
     }
    elseif($this->extra_segments == false)
    {
        if(isset($rsegments_array[3]) && is_numeric($rsegments_array[3]))
        {
            $upload_url = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/upload_file/'.$rsegments_array[3]);
            $ajax_list_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/'.$rsegments_array[3].'/ajax_list');
            $ordering_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/ordering');
            $insert_title_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/insert_title');

            $state = array( 'name' => 'list', 'upload_url' => $upload_url, 'relation_value' => $rsegments_array[3]);
            $state['ajax'] = isset($rsegments_array[4]) && $rsegments_array[4] == 'ajax_list'  ? true : false;
            $state['ajax_list_url'] = $ajax_list_url;
            $state['ordering_url'] = $ordering_url;
            $state['insert_title_url'] = $insert_title_url;


            return (object)$state;
        }
        elseif( (empty($rsegments_array[3]) && empty($this->relation_field)) || (!empty($rsegments_array[3]) &&  $rsegments_array[3] == 'ajax_list'))
        {
            $upload_url = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/upload_file');
            $ajax_list_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/ajax_list');
            $ordering_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/ordering');
            $insert_title_url  = site_url($rsegments_array[1].'/'.$rsegments_array[2].'/insert_title');

            $state = array( 'name' => 'list', 'upload_url' => $upload_url);
            $state['ajax'] = isset($rsegments_array[3]) && $rsegments_array[3] == 'ajax_list'  ? true : false;
            $state['ajax_list_url'] = $ajax_list_url;
            $state['ordering_url'] = $ordering_url;
            $state['insert_title_url'] = $insert_title_url;

            return (object)$state;
        }
        elseif(isset($rsegments_array[3]) && $rsegments_array[3] == 'upload_file')
        {
            #region Just rename my file
                $new_file_name = '';
                //$old_file_name = $this->_to_greeklish($_GET['qqfile']);
                $old_file_name = $this->_convert_foreign_characters($_GET['qqfile']);
                $max = strlen($old_file_name);
                for($i=0; $i< $max;$i++)
                {
                    $numMatches = preg_match('/^[A-Za-z0-9.-_]+$/', $old_file_name[$i], $matches);
                    if($numMatches >0)
                    {
                        $new_file_name .= strtolower($old_file_name[$i]);
                    }
                    else
                    {
                        $new_file_name .= '-';
                    }
                }
                $file_name = substr( substr( uniqid(), 9,13).'-'.$new_file_name , 0, 100) ;
            #endregion

            $results = array( 'name' => 'upload_file', 'file_name' => $file_name);
            if(isset($rsegments_array[4]) && is_numeric($rsegments_array[4]))
            {
                $results['relation_value'] = $rsegments_array[4];
            }
            return (object)$results;
        }
        elseif(isset($rsegments_array[3]) && isset($rsegments_array[4]) && $rsegments_array[3] == 'delete_file' && is_numeric($rsegments_array[4]))
        {
            $state = array( 'name' => 'delete_file', 'id' => $rsegments_array[4]);
            return (object)$state;
        }
        elseif(isset($rsegments_array[3]) && $rsegments_array[3] == 'ordering')
        {
            $state = array( 'name' => 'ordering');
            return (object)$state;
        }
        elseif(isset($rsegments_array[3]) && $rsegments_array[3] == 'insert_title')
        {
            $state = array( 'name' => 'insert_title');
            return (object)$state;
        }
    }
}

Also url helper must be autoloaded or loaded to uri checking function.

url helper也必须自动加载或加载到uri检查功能。

1 个解决方案

#1


0  

You can do with url_helper

你可以用url_helper

add a line in your controller's constructor

在控制器的构造函数中添加一行

 $this->load->helper('url');

public function pictures()
{ 
    $table = $this->uri->segment(3, 0);
    $image = new image_CRUD();
    $image  ->  set_table($table)
            ->  set_url_field('name')
            ->  set_title_field('title')
            //->  set_ordering_field('priority')
            ->  set_image_path('assets/uploads');
    $output = $image -> render();            
    $this->view_output('images/main.php',$image -> render());
}

#1


0  

You can do with url_helper

你可以用url_helper

add a line in your controller's constructor

在控制器的构造函数中添加一行

 $this->load->helper('url');

public function pictures()
{ 
    $table = $this->uri->segment(3, 0);
    $image = new image_CRUD();
    $image  ->  set_table($table)
            ->  set_url_field('name')
            ->  set_title_field('title')
            //->  set_ordering_field('priority')
            ->  set_image_path('assets/uploads');
    $output = $image -> render();            
    $this->view_output('images/main.php',$image -> render());
}