Doctrine自定义映射类型带来数据库错误

时间:2016-02-25 20:48:34

标签: doctrine-orm mapping postgis raster

我试图在PostGis中使用自定义映射类型实现Raster功能。要将Raster添加到数据库,

我正在创建一个包含栅格类型列的表。 要插入Raster-Data我用st_makeemptyraster插入一个新的空Raster,添加一个带有st_addband的新Band并用st_setvalues设置值。

所以,这可以通过这种方式在PLAIN SQL中完成:

CREATE TABLE IF NOT EXISTS rasters (id serial, rast raster);
INSERT INTO rasters(id,rast)
VALUES(
    3, 
    st_setvalues(
        st_addband(     
            ST_MakeEmptyRaster( 2, 2, 0.0005, 0.0005, 1, 1, 0, 0, 4326),
            1,
            '32BF',
            1,
            0
        ),
        1,
        1,
        1,
        ARRAY[[9, 9], [9, 9]]::double precision[][]
     )
);

现在我尝试在doctrine中为raster添加自定义映射类型。

我添加了一个实体Raster:

<?php
/**
 * More Documentation here:
 *
 * http://postgis.net/docs/manual-dev/RT_ST_MakeEmptyRaster.html
 *
 * raster ST_MakeEmptyRaster(raster rast);
 * raster ST_MakeEmptyRaster(integer width, integer height, float8 upperleftx, float8 upperlefty, float8 scalex, float8 scaley, float8 skewx, float8 skewy, integer srid=unknown);
 * raster ST_MakeEmptyRaster(integer width, integer height, float8 upperleftx, float8 upperlefty, float8 pixelsize);
 *
 *
 * http://postgis.net/docs/manual-2.2/RT_ST_AddBand.html
 *
 *
 */
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use JMS\Serializer\Annotation as JMS;
use AppBundle\Model\Raster as RasterModel;
/**
 * Raster
 *
 * @ORM\Entity(repositoryClass="AppBundle\Entity\RasterRepository")
 * @ORM\Table(name="rasters")
 */
class Raster
{
    /**
     * @var integer
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;
    /**
     * @var RasterModel $raster
     *
     * @ORM\Column(name="rast", type="raster", nullable=true)
     */
    private $raster;
    /**
     * Get id
     *
     * @return integer
     */
    public function getId()
    {
        return $this->id;
    }
    /**
     * Set raster
     *
     * @param RasterModel $raster
     *
     * @return Raster
     */
    public function setRaster(RasterModel $raster)
    {
        $this->raster = $raster;
        return $this;
    }
    /**
     * Get raster
     *
     * @return Raster
     */
    public function getRaster()
    {
        return $this->raster;
    }
}

模型的php-Object:

<?php
namespace AppBundle\Model;
use Doctrine\Common\Collections\ArrayCollection;
/**
 * Raster
 */
class Raster
{
    /**
     * @var Raster $raster
     */
    private $raster;
    /**
     * @var integer
     */
    private $width;
    /**
     * @var integer
     */
    private $height;
    /**
     * @var float
     */
    private $upperLeftX;
    /**
     * @var float
     */
    private $upperLeftY;
    /**
     * @var float
     */
    private $scaleX;
    /**
     * @var float
     */
    private $scaleY;
    /**
     * @var float
     */
    private $skewX;
    /**
     * @var float
     */
    private $skewY;
    /**
     * @var float
     */
    private $pixelSize;
    /**
     * @var integer
     */
    private $srid;
    /**
     * @var ArrayCollection RasterBand
     */
    private $bands;
    /**
     * Raster constructor.
     */
    public function __construct()
    {
        $this->bands = new ArrayCollection();
    }
    /**
     * @return Raster
     */
    public function getRaster()
    {
        return $this->raster;
    }
    /**
     * @param Raster $raster
     * @return Raster
     */
    public function setRaster($raster)
    {
        $this->raster = $raster;
        return $this;
    }
    /**
     * @return int
     */
    public function getWidth()
    {
        return $this->width;
    }
    /**
     * @param int $width
     * @return Raster
     */
    public function setWidth($width)
    {
        $this->width = $width;
        return $this;
    }
    /**
     * @return int
     */
    public function getHeight()
    {
        return $this->height;
    }
    /**
     * @param int $height
     * @return Raster
     */
    public function setHeight($height)
    {
        $this->height = $height;
        return $this;
    }
    /**
     * @return float
     */
    public function getUpperLeftX()
    {
        return $this->upperLeftX;
    }
    /**
     * @param float $upperLeftX
     * @return Raster
     */
    public function setUpperLeftX($upperLeftX)
    {
        $this->upperLeftX = $upperLeftX;
        return $this;
    }
    /**
     * @return float
     */
    public function getUpperLeftY()
    {
        return $this->upperLeftY;
    }
    /**
     * @param float $upperLeftY
     * @return Raster
     */
    public function setUpperLeftY($upperLeftY)
    {
        $this->upperLeftY = $upperLeftY;
        return $this;
    }
    /**
     * @return float
     */
    public function getScaleX()
    {
        return $this->scaleX;
    }
    /**
     * @param float $scaleX
     * @return Raster
     */
    public function setScaleX($scaleX)
    {
        $this->scaleX = $scaleX;
        return $this;
    }
    /**
     * @return float
     */
    public function getScaleY()
    {
        return $this->scaleY;
    }
    /**
     * @param float $scaleY
     * @return Raster
     */
    public function setScaleY($scaleY)
    {
        $this->scaleY = $scaleY;
        return $this;
    }
    /**
     * @return float
     */
    public function getSkewX()
    {
        return $this->skewX;
    }
    /**
     * @param float $skewX
     * @return Raster
     */
    public function setSkewX($skewX)
    {
        $this->skewX = $skewX;
        return $this;
    }
    /**
     * @return float
     */
    public function getSkewY()
    {
        return $this->skewY;
    }
    /**
     * @param float $skewY
     * @return Raster
     */
    public function setSkewY($skewY)
    {
        $this->skewY = $skewY;
        return $this;
    }
    /**
     * @return float
     */
    public function getPixelSize()
    {
        return $this->pixelSize;
    }
    /**
     * @param float $pixelSize
     * @return Raster
     */
    public function setPixelSize($pixelSize)
    {
        $this->pixelSize = $pixelSize;
        return $this;
    }
    /**
     * @return int
     */
    public function getSrid()
    {
        return $this->srid;
    }
    /**
     * @param int $srid
     * @return Raster
     */
    public function setSrid($srid)
    {
        $this->srid = $srid;
        return $this;
    }
    /**
     * @return ArrayCollection
     */
    public function getBands()
    {
        return $this->bands;
    }
    /**
     * @param ArrayCollection $bands
     * @return Raster
     */
    public function setBands($bands)
    {
        $this->bands = $bands;
        return $this;
    }
    /**
     * @param RasterBand $band
     * @return array|ArrayCollection
     */
    public function addBand(RasterBand $band)
    {
        $this->bands[] = $band;
        return $this->bands;
    }
    /**
     * @param RasterBand $band
     * @return $this
     */
    public function removeBand(RasterBand $band)
    {
        $this->bands->removeElement($band);
        return $this;
    }
}

自定义映射类型:

<?php
namespace AppBundle\Type;
use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\DBAL\Types\Type;
class RasterType extends Type
{
    const RASTER = 'raster';
    public function getName()
    {
        return self::RASTER;
    }
    public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
    {
        return 'raster';
    }
    public function convertToPHPValue($value, AbstractPlatform $platform)
    {
        /**
         * ToDo: Finish implementing it
         */
        return new \AppBundle\Model\Raster();
    }
    public function convertToDatabaseValue($value, AbstractPlatform $platform)
    {
        return sprintf('%d, %d, %f, %f, %f, %f, %f, %f, %d', 10, 10, 0.1, 0.1, 0.1, 0.1, 0, 0, 4269);
    }
    public function canRequireSQLConversion()
    {
        return true;
    }
    public function convertToPHPValueSQL($sqlExpr, $platform)
    {
        /**
         * ToDo: Finish implementing it
         */
        return sprintf('AsText(%s)', $sqlExpr);
    }
    public function convertToDatabaseValueSQL($sqlExpr, AbstractPlatform $platform)
    {
        return sprintf('st_makeemptyraster(%s)', $sqlExpr);
    }
}

在我的第一个意图中,我试图将空栅格添加到数据库中。 而不是插入或更新栅格,将出现以下错误:

2) AppBundle\Tests\Entity\RasterTest::testCreateEmptyRasterAndAddBand
Doctrine\DBAL\Exception\DriverException: An exception occurred while executing 'INSERT INTO rasters (id, rast) VALUES (?, ?)' with params [2, "st_makeemptyraster(10, 10, 0.100000, 0.100000, 0.100000, 0.100000, 0.000000, 0.000000, 4269)"]:

SQLSTATE[XX000]: Internal error: 7 ERROR:  rt_raster_from_wkb: wkb size (46)  < min size (61)

与纯SQL-Query相同的数据可以正常工作:

INSERT INTO rasters (id, rast) VALUES (14, st_makeemptyraster(10, 10, 0.100000, 0.100000, 0.100000, 0.100000, 0.000000, 0.000000, 4269)); 
INSERT 0 1

有人知道如何解决这个问题吗? 谢谢

1 个答案:

答案 0 :(得分:1)

(我无法评论我的声誉低于50.所以我只能写回答。有些mod可能会改为评论吗?)

我不熟悉Doctrine,但首先我对一个常见问题有一个假设。

您能否确保在构建查询之前,对任何查询传递值都不受字符串转换的影响?使用参数执行查询可能会将它们转换为带有转义字符的字符串值,以避免出现安全问题。

一个例子:

$yourDoctrineAdapter->executeInsert( 42, "storedProcedureCall( 'foo' )" );

可能会产生类似

的内容

INSERT INTO foo ( bar, baz ) VALUES ( '42', 'storedProcedureCall( \'foo\' )' );

我的第二个假设是关于内部错误消息而不是错误的类型。

rt_raster_from_wkb: wkb size (46) < min size (61)

我不知道st_makeemptyraster()的返回值是什么,但是来自Doctrine的调用可能仍会导致字符串参数而不是存储的函数调用。插入列rast中的值是类型框,然后是字符串化&#34;调用&#34;的WKB大小。小于存储函数返回值st_makeemptyraster()的WKB大小。

我建议深入研究如何使用doctrine&#39;来执行存储的函数调用。