[Cartoweb-users] Queries on layers using mapoverlay

[Fabio D'Ovidio]

I've read here: /plugins/mapOverlay/common/MapOverlay.php

I can't set "template" parameter for my layer dinamically .... but I've 
set it in my project map file....


/**
 * LayerOverlay
 * @package Plugins
 */
class LayerOverlay extends BasicOverlay {
   
    /**
     * @var array array of ClassOverlay
     */
    public $classes;
   
    /**
     * @var string
     */
    public $connection;
   
    /**
     * @var string
     */
    public $connectionType;
   
    /**
     * @var string
     */
    public $copyName;
   
    /**
     * @var string
     */
    public $data;
   
    /**
     * @var string
     */
    public $filter;
   
    /**
     * @var string
     */
    public $filteritem;
   
    /**
     * @var string
     */
    public $maxScale;
   
    /**
     * @var array array of MetadataOverlay
     */
    public $metadatas;
   
    /**
     * @var string
     */
    public $minScale;
   
    /**
     * @var string
     */
    public $name;
   
    /**
     * @var int
     */
    public $transparency;
   
    /**
     * @var string
     */
    public $type;
   
    /**
     * @see CwSerializable::unserialize()
     */
    public function unserialize($struct) {
        $this->classes        = self::unserializeArray($struct, 'classes',
                                                       'ClassOverlay');
        $this->connection     = self::unserializeValue($struct, 
'connection');
        $this->connectionType = self::unserializeValue($struct, 
'connectionType');
        $this->copyName       = self::unserializeValue($struct, 'copyName');
        $this->data           = self::unserializeValue($struct, 'data');
        $this->filter         = self::unserializeValue($struct, 'filter');
        $this->filteritem     = self::unserializeValue($struct, 
'filteritem');
        $this->maxScale       = self::unserializeValue($struct, 'maxScale');
        $this->metadatas      = self::unserializeObjectMap($struct, 
'metadatas',
                                                           
'MetadataOverlay');
        $this->minScale       = self::unserializeValue($struct, 'minScale');
        $this->name           = self::unserializeValue($struct, 'name');
        $this->transparency   = self::unserializeValue($struct, 
'transparency',
                                                       'int');
        $this->type           = self::unserializeValue($struct, 'type');
        
        parent::unserialize($struct);
    }   
}

Oliver Christen ha scritto:
> well, the layer should be queryable during the time of a session, 
> meaning until the user close his browser. I see no reason why it 
> wouldnt be queryable, unless you forgot to set a 
> TEMPLATE='ttt_or_whatever' in the layer definition
>
> if you wany to keep the added from one session to another, you need to 
> modify your plugin to store the added layers in database or someting 
> like that add reload theses layer automaticaly if they dont already 
> exist.
>
>> Hi!
>> I've update dinamically one layer using mapoverlay as described here:
>>
>>
>>      3.2.3. Filter data
>>
>> $layer = new LayerOverlay();
>> $layer->name = "field";
>> $layer->data = "geom FROM (SELECT gid, geom, name FROM fields WHERE 
>> farm_id = {$farmId}) " .
>>               "AS foo USING UNIQUE gid USING SRID=-1";
>>        $mapOverlay = 
>> $this->serverContext->getPluginManager()->mapOverlay;
>> $mapOverlay->updateMap($layer);
>>
>>
>>
>> Now, i want to query this layer and display the result.
>> Query doesn't work because the modification are not saved in the 
>> project's mapfile: the result of the mapfile modifications are 
>> specific to a session.
>> My debug map file is debug.map.
>>
>> $pluginManager = $this->serverContext->getPluginManager();
>>            if (empty($pluginManager->mapOverlay))
>>                throw new CartoserverException("mapOverlay plugin not 
>> loaded, "
>>                                               . "and needed to draw 
>> the new element");
>>   $pluginManager->mapOverlay->updateMap($layer);
>>           $this->serverContext->getMapObj()->save('C:/debug.map');
>>
>>
>>
>>
>> How can I do to query my updated layer?
>>
>>
>> Thanks
>>
>> -- 
>> Ing. Fabio D'Ovidio
>>
>> iQuadro - Informatica e Innovazione s.r.l.
>> Via C. Pisacane 23, Aversa (CE) - 81031
>> Web : www.ii2.it
>> Tel.: 081 197 57 600
>> mail: fabiodovidio at gmail.com
>>
>> _______________________________________________
>> Cartoweb-users mailing list
>> Cartoweb-users at lists.maptools.org
>> http://lists.maptools.org/mailman/listinfo/cartoweb-users
>>
>
>

-- 
Ing. Fabio D'Ovidio

iQuadro - Informatica e Innovazione s.r.l.
Via C. Pisacane 23, Aversa (CE) - 81031
Web : www.ii2.it
Tel.: 081 197 57 600
mail: fabiodovidio at gmail.com