Viewing file:  SvgRelationSchema.php (8.59 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Contains PhpMyAdmin\Plugins\Schema\Svg\RelationStatsSvg class
*
* @package PhpMyAdmin
*/
namespace PhpMyAdmin\Plugins\Schema\Svg;
use PhpMyAdmin\Plugins\Schema\Dia\RelationStatsDia;
use PhpMyAdmin\Plugins\Schema\Eps\TableStatsEps;
use PhpMyAdmin\Plugins\Schema\ExportRelationSchema;
use PhpMyAdmin\Plugins\Schema\Pdf\TableStatsPdf;
use PhpMyAdmin\Plugins\Schema\Svg\Svg;
use PhpMyAdmin\Plugins\Schema\Svg\TableStatsSvg;
use PhpMyAdmin\Plugins\Schema\Dia\TableStatsDia;
use PhpMyAdmin\Relation;
/**
* RelationStatsSvg Relation Schema Class
*
* Purpose of this class is to generate the SVG XML Document because
* SVG defines the graphics in XML format which is used for representing
* the database diagrams as vector image. This class actually helps
* in preparing SVG XML format.
*
* SVG XML is generated by using XMLWriter php extension and this class
* inherits ExportRelationSchema class has common functionality added
* to this class
*
* @package PhpMyAdmin
* @name Svg_Relation_Schema
*/
class SvgRelationSchema extends ExportRelationSchema
{
/**
* @var PhpMyAdmin\Plugins\Schema\Dia\TableStatsDia[]|TableStatsEps[]|TableStatsPdf[]|TableStatsSvg[]
*/
private $_tables = array();
/** @var RelationStatsDia[] Relations */
private $_relations = array();
private $_xMax = 0;
private $_yMax = 0;
private $_xMin = 100000;
private $_yMin = 100000;
private $_tablewidth;
/**
* The "PhpMyAdmin\Plugins\Schema\Svg\SvgRelationSchema" constructor
*
* Upon instantiation This starts writing the SVG XML document
* user will be prompted for download as .svg extension
*
* @param string $db database name
*
* @see PMA_SVG
*/
function __construct($db)
{
parent::__construct($db, new Svg());
$this->setShowColor(isset($_REQUEST['svg_show_color']));
$this->setShowKeys(isset($_REQUEST['svg_show_keys']));
$this->setTableDimension(isset($_REQUEST['svg_show_table_dimension']));
$this->setAllTablesSameWidth(isset($_REQUEST['svg_all_tables_same_width']));
$this->diagram->setTitle(
sprintf(
__('Schema of the %s database - Page %s'),
$this->db,
$this->pageNumber
)
);
$this->diagram->SetAuthor('phpMyAdmin ' . PMA_VERSION);
$this->diagram->setFont('Arial');
$this->diagram->setFontSize(16);
$alltables = $this->getTablesFromRequest();
foreach ($alltables as $table) {
if (!isset($this->_tables[$table])) {
$this->_tables[$table] = new TableStatsSvg(
$this->diagram, $this->db,
$table, $this->diagram->getFont(),
$this->diagram->getFontSize(), $this->pageNumber,
$this->_tablewidth, $this->showKeys, $this->tableDimension,
$this->offline
);
}
if ($this->sameWide) {
$this->_tables[$table]->width = &$this->_tablewidth;
}
$this->_setMinMax($this->_tables[$table]);
}
$border = 15;
$this->diagram->startSvgDoc(
$this->_xMax + $border,
$this->_yMax + $border,
$this->_xMin - $border,
$this->_yMin - $border
);
$seen_a_relation = false;
foreach ($alltables as $one_table) {
$exist_rel = $this->relation->getForeigners($this->db, $one_table, '', 'both');
if (!$exist_rel) {
continue;
}
$seen_a_relation = true;
foreach ($exist_rel as $master_field => $rel) {
/* put the foreign table on the schema only if selected
* by the user
* (do not use array_search() because we would have to
* to do a === false and this is not PHP3 compatible)
*/
if ($master_field != 'foreign_keys_data') {
if (in_array($rel['foreign_table'], $alltables)) {
$this->_addRelation(
$one_table,
$this->diagram->getFont(),
$this->diagram->getFontSize(),
$master_field,
$rel['foreign_table'],
$rel['foreign_field'],
$this->tableDimension
);
}
continue;
}
foreach ($rel as $one_key) {
if (!in_array($one_key['ref_table_name'], $alltables)) {
continue;
}
foreach (
$one_key['index_list']
as $index => $one_field
) {
$this->_addRelation(
$one_table,
$this->diagram->getFont(),
$this->diagram->getFontSize(),
$one_field,
$one_key['ref_table_name'],
$one_key['ref_index_list'][$index],
$this->tableDimension
);
}
}
}
}
if ($seen_a_relation) {
$this->_drawRelations();
}
$this->_drawTables();
$this->diagram->endSvgDoc();
}
/**
* Output RelationStatsSvg Document for download
*
* @return void
*/
public function showOutput()
{
$this->diagram->showOutput($this->getFileName('.svg'));
}
/**
* Sets X and Y minimum and maximum for a table cell
*
* @param string $table The table name
*
* @return void
*/
private function _setMinMax($table)
{
$this->_xMax = max($this->_xMax, $table->x + $table->width);
$this->_yMax = max($this->_yMax, $table->y + $table->height);
$this->_xMin = min($this->_xMin, $table->x);
$this->_yMin = min($this->_yMin, $table->y);
}
/**
* Defines relation objects
*
* @param string $masterTable The master table name
* @param string $font The font face
* @param int $fontSize Font size
* @param string $masterField The relation field in the master table
* @param string $foreignTable The foreign table name
* @param string $foreignField The relation field in the foreign table
* @param boolean $tableDimension Whether to display table position or not
*
* @return void
*
* @see _setMinMax,Table_Stats_Svg::__construct(),
* PhpMyAdmin\Plugins\Schema\Svg\RelationStatsSvg::__construct()
*/
private function _addRelation(
$masterTable,
$font,
$fontSize,
$masterField,
$foreignTable,
$foreignField,
$tableDimension
) {
if (!isset($this->_tables[$masterTable])) {
$this->_tables[$masterTable] = new TableStatsSvg(
$this->diagram, $this->db,
$masterTable, $font, $fontSize, $this->pageNumber,
$this->_tablewidth, false, $tableDimension
);
$this->_setMinMax($this->_tables[$masterTable]);
}
if (!isset($this->_tables[$foreignTable])) {
$this->_tables[$foreignTable] = new TableStatsSvg(
$this->diagram, $this->db,
$foreignTable, $font, $fontSize, $this->pageNumber,
$this->_tablewidth, false, $tableDimension
);
$this->_setMinMax($this->_tables[$foreignTable]);
}
$this->_relations[] = new RelationStatsSvg(
$this->diagram,
$this->_tables[$masterTable],
$masterField,
$this->_tables[$foreignTable],
$foreignField
);
}
/**
* Draws relation arrows and lines
* connects master table's master field to
* foreign table's foreign field
*
* @return void
*
* @see Relation_Stats_Svg::relationDraw()
*/
private function _drawRelations()
{
foreach ($this->_relations as $relation) {
$relation->relationDraw($this->showColor);
}
}
/**
* Draws tables
*
* @return void
*
* @see Table_Stats_Svg::Table_Stats_tableDraw()
*/
private function _drawTables()
{
foreach ($this->_tables as $table) {
$table->tableDraw($this->showColor);
}
}
}
|