feat(scheme): 新增数据库表结构同步方案

extend/base/common/service/scheme/DbToSchemeService.php

@@ -0,0 +1,219 @@
+<?php
+
+namespace base\common\service\scheme;
+
+use think\facade\Db;
+use think\facade\Config;
+use think\helper\Str;
+
+class DbToSchemeService
+{
+    protected string $module = 'admin';
+    protected string $connection;
+
+    public function __construct()
+    {
+        $this->connection = Config::get('database.default', 'mysql');
+    }
+
+    public function generate(string $tableName, string $className = null): string
+    {
+        $prefix = Config::get('database.connections.' . $this->connection . '.prefix', '');
+        $fullTableName = $tableName;
+        // 如果表名不包含前缀，且配置了前缀，则添加
+        if ($prefix && !str_starts_with($tableName, $prefix)) {
+             $fullTableName = $prefix . $tableName;
+        }
+        
+        // 尝试获取表信息
+        try {
+            // 获取列信息，TP通用方法
+            $columns = Db::connect($this->connection)->getFields($fullTableName);
+        } catch (\Exception $e) {
+            // 尝试直接使用tableName
+            $fullTableName = $tableName;
+            $columns = Db::connect($this->connection)->getFields($fullTableName);
+        }
+
+        // 获取表注释
+        $tableComment = $this->getTableComment($fullTableName);
+
+        // 获取索引信息
+        $indices = $this->getTableIndices($fullTableName);
+
+        // 生成类名
+        if (empty($className)) {
+            // 去除前缀
+            $shortName = $tableName;
+            if ($prefix && str_starts_with($tableName, $prefix)) {
+                $shortName = substr($tableName, strlen($prefix));
+            }
+            $className = Str::studly($shortName);
+        }
+
+        // 构建类内容
+        return $this->buildClass($className, $fullTableName, $tableComment, $columns, $indices);
+    }
+
+    protected function getTableComment($tableName): string
+    {
+        // 简单适配 MySQL
+        try {
+            $config = Config::get('database.connections.' . $this->connection);
+            $database = $config['database'];
+            // 暂时只支持MySQL的表注释获取，其他返回空
+            $sql = "SELECT table_comment FROM information_schema.TABLES WHERE table_schema = ? AND table_name = ?";
+            $res = Db::connect($this->connection)->query($sql, [$database, $tableName]);
+            return $res[0]['table_comment'] ?? '';
+        } catch (\Exception $e) {
+            return '';
+        }
+    }
+
+    protected function getTableIndices($tableName): array
+    {
+        try {
+            // SHOW KEYS FROM table
+            $keys = Db::connect($this->connection)->query("SHOW KEYS FROM `$tableName`");
+            $indices = [];
+            foreach ($keys as $key) {
+                $name = $key['Key_name'];
+                if ($name === 'PRIMARY') continue; // 主键在 Field 中处理
+                
+                if (!isset($indices[$name])) {
+                    $indices[$name] = [
+                        'name' => $name,
+                        'columns' => [],
+                        'type' => $key['Non_unique'] == 0 ? 'UNIQUE' : ($key['Index_type'] == 'FULLTEXT' ? 'FULLTEXT' : 'NORMAL')
+                    ];
+                }
+                $indices[$name]['columns'][] = $key['Column_name'];
+            }
+            return array_values($indices);
+        } catch (\Exception $e) {
+            return [];
+        }
+    }
+
+    protected function buildClass($className, $tableName, $tableComment, $columns, $indices): string
+    {
+        $fieldsCode = [];
+        
+        foreach ($columns as $field) {
+            $fieldName = $field['name'];
+            $type = $field['type']; // varchar(255)
+            $comment = $field['comment'] ?? '';
+            $default = $field['default'] ?? null;
+            $notNull = $field['notnull'] ?? false;
+            $primary = $field['primary'] ?? false;
+            $autoinc = $field['autoinc'] ?? false;
+
+            // 解析类型和长度
+            preg_match('/(\w+)(?:\((\d+)(?:,(\d+))?\))?/', $type, $matches);
+            $dbType = $matches[1] ?? 'varchar';
+            $length = isset($matches[2]) ? (int)$matches[2] : null;
+            $precision = isset($matches[2]) ? (int)$matches[2] : 0; // For decimal
+            $scale = isset($matches[3]) ? (int)$matches[3] : 0;
+
+            // 解析 Ulthon 组件语法
+            $componentAttr = '';
+            $cleanComment = $comment;
+            
+            // 匹配 {type} (options)
+            // 改进：允许 options 中含有冒号，且 key:value 之间可能有空格，或者没有括号
+            // 例子：{radio} (0:禁用,1:启用) 或 {image} 或 {relation} (table:mall_cate,relationBindSelect:title)
+            if (preg_match('/\{(.*?)\}\s*(\((.*?)\))?/', $comment, $cmatch)) {
+                $compType = $cmatch[1];
+                $compOptionsStr = $cmatch[3] ?? '';
+                $cleanComment = trim(str_replace($cmatch[0], '', $comment));
+                
+                // 解析选项 (1:A, 2:B) 或 (table:mall_cate,relationBindSelect:title)
+                $optionsCode = '[]';
+                if ($compOptionsStr) {
+                    $options = [];
+                    // 简单的 explode 可能有问题，如果值里面有逗号。但目前假设选项格式比较简单。
+                    $parts = explode(',', $compOptionsStr);
+                    foreach ($parts as $p) {
+                        // 尝试分割 key:value
+                        $kv = explode(':', trim($p), 2); // Limit to 2 parts
+                        if (count($kv) >= 2) {
+                            $k = trim($kv[0]);
+                            $v = trim($kv[1]);
+                            $options[$k] = $v;
+                        } else {
+                            $options[] = trim($p);
+                        }
+                    }
+                    $optionsCode = $this->exportArray($options);
+                }
+                
+                $componentAttr = "\n    #[Component(type: '$compType', options: $optionsCode)]";
+            }
+
+            // 构建 Field 注解
+            $defaultStr = is_null($default) ? 'null' : (is_string($default) ? "'$default'" : $default);
+            $nullable = $notNull ? 'false' : 'true';
+            $unsigned = str_contains($type, 'unsigned') ? 'true' : 'false';
+            $primaryStr = $primary ? 'true' : 'false';
+            $autoincStr = $autoinc ? 'true' : 'false';
+            
+            // 如果是整型且未指定长度，默认11 (兼容旧习俗)
+            if (str_contains($dbType, 'int') && !$length) {
+                $length = 11;
+            }
+
+            $lengthStr = is_null($length) ? 'null' : $length;
+
+            $fieldsCode[] = <<<PHP
+    #[Field(type: '$dbType', length: $lengthStr, precision: $precision, scale: $scale, nullable: $nullable, default: $defaultStr, comment: '$cleanComment', unsigned: $unsigned, autoIncrement: $autoincStr, primary: $primaryStr)]$componentAttr
+    public \$$fieldName;
+PHP;
+        }
+
+        $fieldsBody = implode("\n\n", $fieldsCode);
+        
+        // 构建 Index 注解
+        $indexAttrs = '';
+        foreach ($indices as $idx) {
+            $cols = $this->exportArray($idx['columns']);
+            $indexAttrs .= "\n#[Index(columns: $cols, name: '{$idx['name']}', type: '{$idx['type']}')]";
+        }
+
+        return <<<PHP
+<?php
+
+namespace app\\{$this->module}\scheme;
+
+use app\common\scheme\BaseScheme;
+use app\common\scheme\attribute\Table;
+use app\common\scheme\attribute\Field;
+use app\common\scheme\attribute\Component;
+use app\common\scheme\attribute\Index;
+
+#[Table(name: '$tableName', comment: '$tableComment')]$indexAttrs
+class $className extends BaseScheme
+{
+$fieldsBody
+}
+PHP;
+    }
+
+    protected function exportArray(array $array): string
+    {
+        // 简易数组导出
+        $items = [];
+        // 判断是否是关联数组
+        $isAssoc = array_keys($array) !== range(0, count($array) - 1);
+        
+        foreach ($array as $k => $v) {
+            $val = is_string($v) ? "'$v'" : $v;
+            if ($isAssoc) {
+                $key = is_int($k) ? $k : "'$k'";
+                $items[] = "$key => $val";
+            } else {
+                $items[] = $val;
+            }
+        }
+        return '[' . implode(', ', $items) . ']';
+    }
+}