97 lines
3.1 KiB
PHP
97 lines
3.1 KiB
PHP
|
<?php
|
||
|
|
/**
|
||
|
|
* Contains PhpMyAdmin\Plugins\Schema\Eps\RelationStatsEps class
|
||
|
|
*/
|
||
|
|
|
||
|
|
declare(strict_types=1);
|
||
|
|
|
||
|
|
namespace PhpMyAdmin\Plugins\Schema\Eps;
|
||
|
|
|
||
|
|
use PhpMyAdmin\Plugins\Schema\RelationStats;
|
||
|
|
|
||
|
|
use function sqrt;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Relation preferences/statistics
|
||
|
|
*
|
||
|
|
* This class fetches the table master and foreign fields positions
|
||
|
|
* and helps in generating the Table references and then connects
|
||
|
|
* master table's master field to foreign table's foreign key
|
||
|
|
* in EPS document.
|
||
|
|
*
|
||
|
|
* @see Eps
|
||
|
|
*/
|
||
|
|
class RelationStatsEps extends RelationStats
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* @param Eps $diagram The EPS diagram
|
||
|
|
* @param string $master_table The master table name
|
||
|
|
* @param string $master_field The relation field in the master table
|
||
|
|
* @param string $foreign_table The foreign table name
|
||
|
|
* @param string $foreign_field The relation field in the foreign table
|
||
|
|
*/
|
||
|
|
public function __construct(
|
||
|
|
$diagram,
|
||
|
|
$master_table,
|
||
|
|
$master_field,
|
||
|
|
$foreign_table,
|
||
|
|
$foreign_field
|
||
|
|
) {
|
||
|
|
$this->wTick = 10;
|
||
|
|
parent::__construct($diagram, $master_table, $master_field, $foreign_table, $foreign_field);
|
||
|
|
$this->ySrc += 10;
|
||
|
|
$this->yDest += 10;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* draws relation links and arrows
|
||
|
|
* shows foreign key relations
|
||
|
|
*
|
||
|
|
* @see Eps
|
||
|
|
*/
|
||
|
|
public function relationDraw(): void
|
||
|
|
{
|
||
|
|
// draw a line like -- to foreign field
|
||
|
|
$this->diagram->line($this->xSrc, $this->ySrc, $this->xSrc + $this->srcDir * $this->wTick, $this->ySrc, 1);
|
||
|
|
// draw a line like -- to master field
|
||
|
|
$this->diagram->line($this->xDest + $this->destDir * $this->wTick, $this->yDest, $this->xDest, $this->yDest, 1);
|
||
|
|
// draw a line that connects to master field line and foreign field line
|
||
|
|
$this->diagram->line(
|
||
|
|
$this->xSrc + $this->srcDir * $this->wTick,
|
||
|
|
$this->ySrc,
|
||
|
|
$this->xDest + $this->destDir * $this->wTick,
|
||
|
|
$this->yDest,
|
||
|
|
1
|
||
|
|
);
|
||
|
|
$root2 = 2 * sqrt(2);
|
||
|
|
$this->diagram->line(
|
||
|
|
$this->xSrc + $this->srcDir * $this->wTick * 0.75,
|
||
|
|
$this->ySrc,
|
||
|
|
$this->xSrc + $this->srcDir * (0.75 - 1 / $root2) * $this->wTick,
|
||
|
|
$this->ySrc + $this->wTick / $root2,
|
||
|
|
1
|
||
|
|
);
|
||
|
|
$this->diagram->line(
|
||
|
|
$this->xSrc + $this->srcDir * $this->wTick * 0.75,
|
||
|
|
$this->ySrc,
|
||
|
|
$this->xSrc + $this->srcDir * (0.75 - 1 / $root2) * $this->wTick,
|
||
|
|
$this->ySrc - $this->wTick / $root2,
|
||
|
|
1
|
||
|
|
);
|
||
|
|
$this->diagram->line(
|
||
|
|
$this->xDest + $this->destDir * $this->wTick / 2,
|
||
|
|
$this->yDest,
|
||
|
|
$this->xDest + $this->destDir * (0.5 + 1 / $root2) * $this->wTick,
|
||
|
|
$this->yDest + $this->wTick / $root2,
|
||
|
|
1
|
||
|
|
);
|
||
|
|
$this->diagram->line(
|
||
|
|
$this->xDest + $this->destDir * $this->wTick / 2,
|
||
|
|
$this->yDest,
|
||
|
|
$this->xDest + $this->destDir * (0.5 + 1 / $root2) * $this->wTick,
|
||
|
|
$this->yDest - $this->wTick / $root2,
|
||
|
|
1
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|