Thread

2. You need to add the bootloader to your index.php, this creates the DM_DB_Driver, it should always be there.

When you get to the lines that generate these errors, $this->db should already be loaded. What is your db_params value when this happens? And how and where do you define it?

I added bootloader to index.php.

I set db_params for example like this:

Array ( [hostname] => localhost [username] => SOME_LOGIN [password] => SOME_PASS [database] => SOME_DB [dbdriver] => mysql [dbprefix] => [pconnect] => [db_debug] => 1 [cache_on] => [cachedir] => [char_set] => utf-8 [dbcollat] => utf8_general_ci [swap_pre] => [autoinit] => 1 [stricton] => )

Normal connection string. When I use tables from default database, it’s ok, but when I set db_params to use another database, then I’ve got errors I mentioned.

I can reproduce it now. I’m looking for a fix.

edit: think I fixed it. I just pushed the fixes to BitBucket. Could you download ‘tip’ again and see if it works for you now?

I can reproduce it now. I’m looking for a fix.

edit: think I fixed it. I just pushed the fixes to BitBucket. Could you download ‘tip’ again and see if it works for you now?

Now it’s working! Thank you!

PS. I like DataMapper very much :D.

Ok, thanks for the feedback. Merry Christmas.

Just upgraded to DM 1.8.2 and CI 2.1.0 and everything works great except for loading a DataMapper extension. I get

An Error Was Encountered
DataMapper Error: loading extension array: File not found.

I am not sure where the extensions should live. I have copied the extension files to CI application/datamapper. Am I missing some configuration to indicate where to find the extensions?

Thanks.

I figured out the offending code. It is the fact that if line 922 in library/datamapper.php is a file that exists, then it will not hit

if ( ! file_exists($file))
   {
    if(strpos($name, '/') === FALSE)
    {
     $file = APPPATH . DataMapper::$config['extensions_path'] . '/' . $name . EXT;
     $ext = $name;
    }
    else
    {
     $file = APPPATH . $name . EXT;
     $ext = array_pop(explode('/', $name));
    }

    if(!file_exists($file))
    {
     show_error('DataMapper Error: loading extension ' . $name . ': File not found.');
    }
   }

that sets var $ext. That bombs when line 948 refers to it.

if(class_exists($prefix.$ext))

My ugly hack to get it to work for now is to force to go into the if statement by setting

$file = '';

right after line 922

$file = DataMapper::$config['extensions_path'] . '/' . $name . EXT;

Again, this is an ugly hack.

That should solve the problem.

Otherwise, load the database library in the welcome controller, and var_dump(get_class($this->db)). What class is it pointing too? It should be “DM_DB_Driver”. If you see “CI_DB_Driver”, the bootstrap isn’t loaded, or isn’t loaded properly.

Note that DataMapper 1.8.2 requires CI 2.0.3 or above.

Hi, This is the result.
It is string(12) “DM_DB_Driver” when i execute var_dump(get_class($this->db)).

But this bug [Fatal error: Call to undefined method CI_DB_mysql_driver::dm_call_method() in C:\wamp\www\examples\application\libraries\datamapper.php on line 1113] still occurs.
This bug occurs when i try to load a function that does not exist in the path controllers/admin_module/manage.php. localhost/mysite.com/admin_module/manage/function_no_exist for example.

Note: Setting 404_override in routes.php file is $route[‘404_override’] = ‘home’;

@Frank Wong,

which version of the code do you have? Line 922 in mine is a bracket-close.

You can run into this issue if you have specified a fully qualified path for ‘extensions_path’ in your datamapper config. Try defining it relative to APPPATH (so just ‘datamapper’ in your case) to work around it.

It can be fixed by adding an else:

if ( ! file_exists($file))
{
    // existing code here
}
else
{
    $ext = $name;
}

@Nguyen Huy,

do you autoload the database in your config, manually in your controller, or do you have Datamapper handle it?

Which version of CI are you using? I’ll see if I can find the time to reproduce it.

Can I combine this plugin with ionAuth? I see the structure of database table seems same. any suggestion where I’m start

DataMapper doesn’t supply any tables, so I’m not sure what you mean.

But in general it is no problem mixing normal CI active record calls and using a DataMapper model to interact with the table. You only have to make sure the relation structure isn’t broken (foreign keys updated/reset/etc) when you access the tables directly.

For complex operations, I normally use direct AR calls in my DataMapper model methods, as they are faster that ORM operations. If needed DataMapper provides a method to convert a standard CI $this->db result into DataMapper objects.

I mean the ion Auth (authentication) library.

I don’t see a reason why IonAuth should be using ORM models. All the database I/O is internal to the library, so what happens there is not really relevant.

Nobody’s stopping you creating a model for IonAuth’s tables, so you can access them outside IonAuth using DataMapper.

@Frank Wong,

which version of the code do you have? Line 922 in mine is a bracket-close.

You can run into this issue if you have specified a fully qualified path for ‘extensions_path’ in your datamapper config. Try defining it relative to APPPATH (so just ‘datamapper’ in your case) to work around it.

It can be fixed by adding an else:

if ( ! file_exists($file))
{
    // existing code here
}
else
{
    $ext = $name;
}

I am using DM 1.8.2 installed from sparks and CI 2.1.0.

This is the entire _load_extensions() function in datamapper.php

protected static function _load_extensions(&$extensions, $names)
 {
  $CI =& get_instance();
  $class_prefixes = array(
   0 => 'DMZ_',
   1 => 'DataMapper_',
   2 => $CI->config->item('subclass_prefix'),
   3 => 'CI_'
  );
  foreach($names as $name => $options)
  {
   if( ! is_string($name))
   {
    $name = $options;
    $options = NULL;
   }
   // only load an extension if it wasn't already loaded in this context
   if(isset($extensions[$name]))
   {
    return;
   }

   if( ! isset($extensions['_methods']))
   {
    $extensions['_methods'] = array();
   }

   // determine the file name and class name
   $file = DataMapper::$config['extensions_path'] . '/' . $name . EXT;
                        $file = ''; // TODO: FW - ugly hack to make loading extensions work. Need to remove when there is a fix.
   if ( ! file_exists($file))
   {
    if(strpos($name, '/') === FALSE)
    {
     $file = APPPATH . DataMapper::$config['extensions_path'] . '/' . $name . EXT;
     $ext = $name;
    }
    else
    {
     $file = APPPATH . $name . EXT;
     $ext = array_pop(explode('/', $name));
    }

    if(!file_exists($file))
    {
     show_error('DataMapper Error: loading extension ' . $name . ': File not found.');
    }
   }

   // load class
   include_once($file);

   // Allow for DMZ_Extension, DataMapper_Extension, etc.
   foreach($class_prefixes as $index => $prefix)
   {
    if(class_exists($prefix.$ext))
    {
     if($index == 2) // "MY_"
     {
      // Load in the library this class is based on
      $CI->load->library($ext);
     }
     $ext = $prefix.$ext;
     break;
    }
   }
   if(!class_exists($ext))
   {
    show_error("DataMapper Error: Unable to find a class for extension $name.");
   }
   // create class
   if(is_null($options))
   {
    $o = new $ext(NULL, isset($this) ? $this : NULL);
   }
   else
   {
    $o = new $ext($options, isset($this) ? $this : NULL);
   }
   $extensions[$name] = $o;

   // figure out which methods can be called on this class.
   $methods = get_class_methods($ext);
   foreach($methods as $m)
   {
    // do not load private methods or methods already loaded.
    if($m[0] !== '_' &&
      is_callable(array($o, $m)) &&
      ! isset($extensions['_methods'][$m])
      ) {
     // store this method.
     $extensions['_methods'][$m] = $name;
    }
   }
  }
 }

Is the sparks version 1.8.2 not the version everyone else is referring to?

Thanks.

I found and downloaded the zip from http://datamapper.wanwizard.eu/pages/download.html and indeed the libraries/datamapper.php are different from the version from sparks. It also explains a lot why some of the instructions on setup/upgrade seem to not make sense. I think the sparks setup is slightly different.

Is the sparks version not current and should not be used? I do like how sparks keeps third_party modules (mostly) separated from my application code. Thanks.

There were some post-release fixes, some of them might not have made it to the spark. I’ll see if I can update it…

There were some post-release fixes, some of them might not have made it to the spark. I’ll see if I can update it…

You are awesome. Thanks for updating this project. It is very useful.