Рефакторинг, отказ от $u->testAction('',2) для разрыва зависимости с User::class. Добавлен зачаточный генератор запросов.

2024-05-14 17:24:54 +03:00
parent 7b8ffdfd6a
commit bc136cc030
11 changed files with 802 additions and 742 deletions
--- a/_incl_data/class/Helper/QueryBuilder.php
+++ b/_incl_data/class/Helper/QueryBuilder.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Helper;
+
+use Exception;
+
+class QueryBuilder
+{
+    public function __construct(private readonly string $tableName, private string $columns = '*') {}
+
+    public function setColumns(string $columns): void
+    {
+        $this->columns = $columns;
+    }
+
+    /**
+     * @throws Exception
+     */
+    public function select(array $filters = [], int $limit = 0): array
+    {
+        if (empty($filters)) {
+            return ['sql' => "select {$this->columns} from {$this->tableName}"];
+        }
+        $where = [];
+        $params = [];
+        foreach ($filters as $filter) {
+            [$name, $operation, $value] = explode(' ', $filter, 3);
+            $placeholder = ":$name";
+            $value = explode(' ', $value, 3);
+            if (count($value) === 1) {
+                $value = $value[0];
+                if (is_numeric($value)) {
+                    $value = (int)$value;
+                }
+            } else {
+                array_walk_recursive($value, function (&$var) {
+                    if (is_numeric($var)) {
+                        $var = (int)$var;
+                    }
+                });
+                if (is_numeric($value[0]) && is_numeric($value[2])) {
+                    $value = match ($value[1]) {
+                        '+' => $value[0] + $value[2],
+                        '-' => $value[0] - $value[2],
+                        '*' => $value[0] * $value[2],
+                        '/' => ($value[2] != 0) ? $value[0] / $value[2] : throw new Exception('Деление на ноль недопустимо.'),
+                        default => throw new Exception('Недопустимый оператор. Допустимы: +, -, *, /.'),
+                    };
+                } elseif (is_string($value[0])) {
+                    $placeholder = "$value[0] $value[1] :$name";
+                    $value = $value[2];
+                } elseif (is_string($value[2])) {
+                    $placeholder = "$value[2] $value[1] :$name";
+                    $value = $value[0];
+                }
+            }
+            //todo: но есть ещё форменное скотство, когда в запрос кидают сложные формулы...
+
+            $where[] = "$name $operation $placeholder";
+            $params[$name] = $value;
+        }
+
+        return [
+            'sql' => "select $this->columns from $this->tableName where " . implode(" and ", $where) . ($limit > 0 ? " limit $limit" : ""),
+            'binds' => $params,
+        ];
+    }
+}