337 lines
12 KiB
PHP
337 lines
12 KiB
PHP
<?php
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namespace app\utils;
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use support\Db;
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use RuntimeException;
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class ModelAutoGenerator
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{
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/**
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* 生成单个数据表对应的模型文件
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*
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* @param string $tableName 数据库表名(如:user)
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* @param string $modelName 模型类名(如:User)
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* @param bool $force 是否强制覆盖已存在的模型文件
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* @return array 生成结果 ['status' => bool, 'msg' => string]
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*/
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public static function generate(string $tableName, string $modelName, bool $force = false): array
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{
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// 1. 定义模型文件路径(兼容webman的app_path)
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$modelPath = app_path() . '/model/' . ucfirst($modelName) . '.php';
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$modelClassName = ucfirst($modelName); // 确保类名首字母大写
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// 2. 检查文件是否已存在,存在则返回不覆盖提示
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if (file_exists($modelPath) && !$force) {
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return [
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'status' => false,
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'msg' => "模型文件 {$modelClassName}.php 已存在,不执行覆盖操作"
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];
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}
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try {
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// 3. 读取数据表基本信息(包含表注释)- 修复参数绑定问题
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$tableComment = self::getTableComment($tableName);
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// 4. 读取数据表结构(包含字段注释、类型等)
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$tableStruct = self::getTableStruct($tableName);
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if (empty($tableStruct)) {
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return [
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'status' => false,
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'msg' => "数据表 {$tableName} 无字段信息,生成失败"
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];
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}
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// 5. 构建模型文件内容(传入表注释)
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$modelContent = self::buildModelContent($tableName, $modelClassName, $tableStruct, $tableComment);
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// 6. 确保model目录存在
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if (!is_dir(dirname($modelPath))) {
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mkdir(dirname($modelPath), 0755, true);
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}
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// 7. 写入模型文件
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$writeResult = file_put_contents($modelPath, $modelContent);
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if ($writeResult === false) {
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throw new RuntimeException("模型文件写入失败,检查目录权限");
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}
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return [
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'status' => true,
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'msg' => "模型 {$modelClassName}.php 已成功生成至 app/model 目录"
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];
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} catch (\Exception $e) {
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return [
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'status' => false,
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'msg' => "生成失败:{$e->getMessage()}"
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];
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}
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}
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/**
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* 批量生成所有数据表的模型文件
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*
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* @param bool $force 是否强制覆盖已存在的模型文件
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* @param array $excludeTables 排除的数据表(如:['migrations', 'logs'])
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* @return array 批量生成结果 ['success' => 成功数量, 'fail' => 失败列表]
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*/
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public static function generate_all(bool $force = false, array $excludeTables = []): array
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{
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$result = [
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'success' => 0,
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'fail' => []
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];
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try {
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// 1. 获取数据库中所有数据表
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$tables = Db::select("SHOW TABLES");
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$tableNameKey = 'Tables_in_' . config('database.connections.mysql.database');
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foreach ($tables as $table) {
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$tableName = $table->$tableNameKey;
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// 跳过排除的表
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if (in_array($tableName, $excludeTables)) {
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continue;
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}
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// 跳过视图(以 v_ 开头的表,避免视图生成模型)
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if (str_starts_with($tableName, 'v_')) {
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continue;
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}
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// 2. 表名转模型名(下划线转驼峰,如 user_info → UserInfo)
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$modelName = self::tableNameToModelName($tableName);
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// 3. 调用单个生成方法
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$generateResult = self::generate($tableName, $modelName, $force);
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if ($generateResult['status']) {
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$result['success']++;
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} else {
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$result['fail'][] = [
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'table' => $tableName,
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'model' => $modelName,
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'reason' => $generateResult['msg']
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];
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}
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}
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return $result;
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} catch (\Exception $e) {
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$result['fail'][] = [
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'table' => 'all',
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'model' => 'all',
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'reason' => "批量生成异常:{$e->getMessage()}"
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];
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return $result;
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}
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}
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/**
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* 获取数据表注释(修复参数绑定问题)
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*
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* @param string $tableName 数据表名
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* @return string 表注释(无注释则返回空字符串)
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*/
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private static function getTableComment(string $tableName): string
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{
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// 修复核心:不使用参数绑定,直接拼接表名(先过滤表名防止注入)
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$safeTableName = preg_replace('/[^a-zA-Z0-9_]/', '', $tableName);
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$sql = "SHOW TABLE STATUS LIKE '{$safeTableName}'";
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try {
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$tableInfo = Db::select($sql);
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} catch (\Exception $e) {
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// 读取表注释失败时返回空字符串,不影响模型生成
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return '';
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}
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if (empty($tableInfo)) {
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return '';
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}
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// 兼容不同数据库驱动的字段名(Comment/comment)
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$comment = $tableInfo[0]->Comment ?? $tableInfo[0]->comment ?? '';
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return trim($comment);
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}
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/**
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* 获取数据表结构(修复关键字冲突+兼容字段注释读取)
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*
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* @param string $tableName 数据表名
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* @return array 表结构数组
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*/
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private static function getTableStruct(string $tableName): array
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{
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// 表名安全过滤
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$safeTableName = preg_replace('/[^a-zA-Z0-9_]/', '', $tableName);
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// 修复关键字冲突:给别名加反引号,避免与MySQL保留字冲突
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$sql = "SELECT
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COLUMN_NAME AS `Field`,
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DATA_TYPE AS `TypeSimple`,
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COLUMN_TYPE AS `Type`,
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IS_NULLABLE AS `IsNull`,
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COLUMN_KEY AS `ColumnKey`,
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COLUMN_DEFAULT AS `ColumnDefault`,
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COLUMN_COMMENT AS `Comment`
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = ?
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AND TABLE_NAME = ?
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ORDER BY ORDINAL_POSITION";
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// 使用参数绑定读取字段信息(INFORMATION_SCHEMA 支持参数绑定)
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$tableStruct = Db::select($sql, [
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config('database.connections.mysql.database'),
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$safeTableName
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]);
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// 格式化字段信息,确保注释字段统一
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return array_map(function ($field) {
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return (object)[
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'Field' => $field->Field ?? '',
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'Type' => $field->Type ?? $field->TypeSimple ?? '',
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'Key' => $field->ColumnKey ?? '', // 对应修改后的别名
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// 优先读取 COMMENT,兼容大小写,确保去空格
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'Comment' => trim($field->Comment ?? $field->comment ?? ''),
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'Null' => $field->IsNull ?? '', // 对应修改后的别名
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'Default' => $field->ColumnDefault ?? '' // 对应修改后的别名
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];
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}, $tableStruct);
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}
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/**
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* 构建模型文件内容(确保字段注释正确展示)
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*
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* @param string $tableName 数据表名
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* @param string $modelClassName 模型类名
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* @param array $tableStruct 表结构信息
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* @param string $tableComment 表注释
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* @return string 模型文件内容
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*/
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private static function buildModelContent(string $tableName, string $modelClassName, array $tableStruct, string $tableComment): string
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{
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// 提取主键
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$primaryKey = 'id';
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foreach ($tableStruct as $field) {
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if ($field->Key === 'PRI') {
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$primaryKey = $field->Field;
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break;
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}
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}
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// 构建字段注释(格式:字段名 数据库注释)
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$fieldComments = [];
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foreach ($tableStruct as $field) {
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$fieldName = $field->Field; // 原始字段名(如 dt)
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$dbComment = $field->Comment; // 数据库注释(如 基准时间)
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// 拼接注释:字段名 + (有数据库注释则加)数据库注释
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$fullComment = $fieldName;
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if (!empty($dbComment)) {
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$fullComment .= " {$dbComment}";
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}
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// 补充字段属性说明(非空、主键、默认值)
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$extComment = [];
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if ($field->Null === 'NO') {
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$extComment[] = '非空';
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}
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if ($field->Key === 'PRI') {
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$extComment[] = '主键';
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}
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if ($field->Default !== '') {
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$extComment[] = "默认值:{$field->Default}";
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}
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// 如有属性说明,追加到注释末尾
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if (!empty($extComment)) {
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$fullComment .= '(' . implode(',', $extComment) . ')';
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}
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$fieldType = self::dbTypeToPhpType($field->Type);
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$fieldComments[] = " * @property {$fieldType} \${$fieldName} {$fullComment}";
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}
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$fieldCommentsStr = implode("\n", $fieldComments);
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// 构建表注释(无注释则使用默认描述)
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$tableCommentStr = !empty($tableComment) ? $tableComment : "{$tableName} 数据表模型";
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// 模型模板(适配webman的think-orm)
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return <<<PHP
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<?php
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namespace app\model;
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use support\Model;
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/**
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* {$modelClassName} 模型
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* 表说明:{$tableCommentStr}
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* 对应数据表:{$tableName}
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{$fieldCommentsStr}
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*/
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class {$modelClassName} extends Model
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{
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/**
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* 数据表名
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* @var string
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*/
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protected \$table = '{$tableName}';
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/**
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* 主键字段名
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* @var string
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*/
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protected \$pk = '{$primaryKey}';
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/**
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* 关闭自动时间戳(如需开启请改为 true,需确保表有 create_time/update_time 字段)
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* @var bool
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*/
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protected \$autoWriteTimestamp = false;
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/**
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* 字段严格检查(false=允许操作未定义字段)
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* @var bool
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*/
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protected \$strict = false;
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}
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PHP;
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}
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/**
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* 数据表名转模型名(下划线转驼峰)
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*
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* @param string $tableName 数据表名(如:user_info)
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* @return string 模型名(如:UserInfo)
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*/
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private static function tableNameToModelName(string $tableName): string
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{
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// 移除表前缀(如需处理前缀,可在此添加逻辑)
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// $prefix = config('database.connections.mysql.prefix');
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// $tableName = str_replace($prefix, '', $tableName);
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// 下划线转驼峰并首字母大写
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return str_replace(' ', '', ucwords(str_replace('_', ' ', $tableName)));
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}
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/**
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* 数据库字段类型转PHP类型注释
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*
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* @param string $dbType 数据库类型(如:int(11), varchar(255))
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* @return string PHP类型(如:int, string)
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*/
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private static function dbTypeToPhpType(string $dbType): string
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{
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$type = strtolower(explode('(', $dbType)[0]);
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return match ($type) {
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'int', 'tinyint', 'smallint', 'mediumint', 'bigint' => 'int',
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'float', 'double', 'decimal' => 'float',
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'date', 'time', 'datetime', 'timestamp' => 'string',
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'bool', 'boolean' => 'bool',
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default => 'string'
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};
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}
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} |