Viewing file:  EpsRelationSchema.php (7.65 KB) -rw-r--r--
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<?php
/**
* Classes to create relation schema in EPS format.
*/
declare(strict_types=1);
namespace PhpMyAdmin\Plugins\Schema\Eps;
use PhpMyAdmin\Plugins\Schema\Dia\TableStatsDia;
use PhpMyAdmin\Plugins\Schema\ExportRelationSchema;
use PhpMyAdmin\Plugins\Schema\Pdf\TableStatsPdf;
use PhpMyAdmin\Plugins\Schema\Svg\TableStatsSvg;
use function date;
use function in_array;
use function sprintf;
/**
* EPS Relation Schema Class
*
* Purpose of this class is to generate the EPS Document
* which is used for representing the database diagrams.
* This class uses post script commands and with
* the combination of these commands actually helps in preparing EPS Document.
*
* This class inherits ExportRelationSchema class has common functionality added
* to this class
*
* @name EpsRelationSchema
*/
class EpsRelationSchema extends ExportRelationSchema
{
/** @var TableStatsDia[]|TableStatsEps[]|TableStatsPdf[]|TableStatsSvg[] */
private $tables = [];
/** @var RelationStatsEps[] Relations */
private $relations = [];
/** @var int */
private $tablewidth;
/**
* Upon instantiation This starts writing the EPS document
* user will be prompted for download as .eps extension
*
* @see PMA_EPS
*
* @param string $db database name
*/
public function __construct($db)
{
parent::__construct($db, new Eps());
$this->setShowColor(isset($_REQUEST['eps_show_color']));
$this->setShowKeys(isset($_REQUEST['eps_show_keys']));
$this->setTableDimension(isset($_REQUEST['eps_show_table_dimension']));
$this->setAllTablesSameWidth(isset($_REQUEST['eps_all_tables_same_width']));
$this->setOrientation((string) $_REQUEST['eps_orientation']);
$this->diagram->setTitle(
sprintf(
__('Schema of the %s database - Page %s'),
$this->db,
$this->pageNumber
)
);
$this->diagram->setAuthor('phpMyAdmin ' . PMA_VERSION);
$this->diagram->setDate(date('j F Y, g:i a'));
$this->diagram->setOrientation($this->orientation);
$this->diagram->setFont('Verdana', '10');
$alltables = $this->getTablesFromRequest();
foreach ($alltables as $table) {
if (! isset($this->tables[$table])) {
$this->tables[$table] = new TableStatsEps(
$this->diagram,
$this->db,
$table,
$this->diagram->getFont(),
$this->diagram->getFontSize(),
$this->pageNumber,
$this->tablewidth,
$this->showKeys,
$this->tableDimension,
$this->offline
);
}
if (! $this->sameWide) {
continue;
}
$this->tables[$table]->width = $this->tablewidth;
}
$seen_a_relation = false;
foreach ($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->endEpsDoc();
}
/**
* Output Eps Document for download
*
* @return void
*/
public function showOutput()
{
$this->diagram->showOutput($this->getFileName('.eps'));
}
/**
* Defines relation objects
*
* @see _setMinMax
* @see TableStatsEps::__construct()
* @see PhpMyAdmin\Plugins\Schema\Eps\RelationStatsEps::__construct()
*
* @param string $masterTable The master table name
* @param string $font The font
* @param int $fontSize The 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 bool $tableDimension Whether to display table position or not
*
* @return void
*/
private function addRelation(
$masterTable,
$font,
$fontSize,
$masterField,
$foreignTable,
$foreignField,
$tableDimension
) {
if (! isset($this->tables[$masterTable])) {
$this->tables[$masterTable] = new TableStatsEps(
$this->diagram,
$this->db,
$masterTable,
$font,
$fontSize,
$this->pageNumber,
$this->tablewidth,
false,
$tableDimension
);
}
if (! isset($this->tables[$foreignTable])) {
$this->tables[$foreignTable] = new TableStatsEps(
$this->diagram,
$this->db,
$foreignTable,
$font,
$fontSize,
$this->pageNumber,
$this->tablewidth,
false,
$tableDimension
);
}
$this->relations[] = new RelationStatsEps(
$this->diagram,
$this->tables[$masterTable],
$masterField,
$this->tables[$foreignTable],
$foreignField
);
}
/**
* Draws relation arrows and lines connects master table's master field to
* foreign table's foreign field
*
* @see RelationStatsEps::relationDraw()
*
* @return void
*/
private function drawRelations()
{
foreach ($this->relations as $relation) {
$relation->relationDraw();
}
}
/**
* Draws tables
*
* @see TableStatsEps::Table_Stats_tableDraw()
*
* @return void
*/
private function drawTables()
{
foreach ($this->tables as $table) {
$table->tableDraw($this->showColor);
}
}
}
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