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2024-11-23 20:45:29 +01:00 · 2024-11-23 20:45:29 +01:00 · ea0eb1c6e0
commit ea0eb1c6e0
parent 41ce1aa076
4222 changed files with 721797 additions and 14 deletions
--- a/admin/phpMyAdmin/libraries/classes/Plugins/Schema/RelationStats.php
+++ b/admin/phpMyAdmin/libraries/classes/Plugins/Schema/RelationStats.php
@ -0,0 +1,128 @@
+<?php
+/**
+ * Contains abstract class to hold relation preferences/statistics
+ */
+
+declare(strict_types=1);
+
+namespace PhpMyAdmin\Plugins\Schema;
+
+use function abs;
+use function array_search;
+use function min;
+
+/**
+ * Relations 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.
+ *
+ * @abstract
+ */
+abstract class RelationStats
+{
+    /** @var object */
+    protected $diagram;
+
+    /** @var mixed */
+    public $xSrc;
+
+    /** @var mixed */
+    public $ySrc;
+
+    /** @var int */
+    public $srcDir;
+
+    /** @var int */
+    public $destDir;
+
+    /** @var mixed */
+    public $xDest;
+
+    /** @var mixed */
+    public $yDest;
+
+    /** @var int */
+    public $wTick = 0;
+
+    /**
+     * @param object $diagram       The 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->diagram = $diagram;
+
+        $src_pos = $this->getXy($master_table, $master_field);
+        $dest_pos = $this->getXy($foreign_table, $foreign_field);
+        /*
+         * [0] is x-left
+        * [1] is x-right
+        * [2] is y
+        */
+        $src_left = $src_pos[0] - $this->wTick;
+        $src_right = $src_pos[1] + $this->wTick;
+        $dest_left = $dest_pos[0] - $this->wTick;
+        $dest_right = $dest_pos[1] + $this->wTick;
+
+        $d1 = abs($src_left - $dest_left);
+        $d2 = abs($src_right - $dest_left);
+        $d3 = abs($src_left - $dest_right);
+        $d4 = abs($src_right - $dest_right);
+        $d = min($d1, $d2, $d3, $d4);
+
+        if ($d == $d1) {
+            $this->xSrc = $src_pos[0];
+            $this->srcDir = -1;
+            $this->xDest = $dest_pos[0];
+            $this->destDir = -1;
+        } elseif ($d == $d2) {
+            $this->xSrc = $src_pos[1];
+            $this->srcDir = 1;
+            $this->xDest = $dest_pos[0];
+            $this->destDir = -1;
+        } elseif ($d == $d3) {
+            $this->xSrc = $src_pos[0];
+            $this->srcDir = -1;
+            $this->xDest = $dest_pos[1];
+            $this->destDir = 1;
+        } else {
+            $this->xSrc = $src_pos[1];
+            $this->srcDir = 1;
+            $this->xDest = $dest_pos[1];
+            $this->destDir = 1;
+        }
+
+        $this->ySrc = $src_pos[2];
+        $this->yDest = $dest_pos[2];
+    }
+
+    /**
+     * Gets arrows coordinates
+     *
+     * @param TableStats $table  The table
+     * @param string     $column The relation column name
+     *
+     * @return array Arrows coordinates
+     */
+    private function getXy($table, $column)
+    {
+        $pos = array_search($column, $table->fields);
+
+        // x_left, x_right, y
+        return [
+            $table->x,
+            $table->x + $table->width,
+            $table->y + ($pos + 1.5) * $table->heightCell,
+        ];
+    }
+}