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