71 lines
3.0 KiB
PHP
71 lines
3.0 KiB
PHP
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<?php
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/**
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* 文件功能：创建 AI 厂商配置表和 AI 使用日志表
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*
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* ai_provider_configs — 存储多个 AI 厂商的 API 配置（密钥、端点、模型等）
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* ai_usage_logs — 记录每次 AI 接口调用的 token 消耗和响应信息
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*
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* @author ChatRoom Laravel
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*
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* @version 1.0.0
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*/
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use Illuminate\Database\Migrations\Migration;
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use Illuminate\Database\Schema\Blueprint;
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use Illuminate\Support\Facades\Schema;
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return new class extends Migration
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{
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/**
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* 执行迁移：创建 AI 相关的两张数据表
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*/
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public function up(): void
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{
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// AI 厂商配置表
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Schema::create('ai_provider_configs', function (Blueprint $table) {
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$table->id();
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$table->string('provider', 50)->index()->comment('厂商标识（如 deepseek, qwen, openai）');
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$table->string('name', 100)->comment('厂商显示名称');
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$table->text('api_key')->comment('API Key（加密存储）');
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$table->string('api_endpoint', 255)->comment('API 端点地址');
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$table->string('model', 100)->comment('使用的模型名称');
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$table->decimal('temperature', 3, 2)->default(0.30)->comment('温度参数');
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$table->integer('max_tokens')->default(2048)->comment('最大 Token 数');
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$table->boolean('is_enabled')->default(true)->index()->comment('是否启用');
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$table->boolean('is_default')->default(false)->comment('是否为默认厂商');
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$table->integer('sort_order')->default(0)->comment('排序（故障转移时按此顺序）');
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$table->timestamps();
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});
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// AI 使用日志表
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Schema::create('ai_usage_logs', function (Blueprint $table) {
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$table->id();
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$table->foreignId('user_id')->nullable()->constrained('users')->nullOnDelete()->comment('使用者');
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$table->string('provider', 50)->comment('AI 厂商标识');
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$table->string('model', 100)->comment('使用的模型');
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$table->string('action', 50)->default('chatbot')->comment('操作类型');
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$table->integer('prompt_tokens')->default(0)->comment('输入 Token 数');
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$table->integer('completion_tokens')->default(0)->comment('输出 Token 数');
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$table->integer('total_tokens')->default(0)->comment('总 Token 数');
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$table->decimal('cost', 10, 6)->default(0)->comment('费用');
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$table->integer('response_time_ms')->default(0)->comment('响应时间（毫秒）');
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$table->boolean('success')->default(true)->comment('是否成功');
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$table->text('error_message')->nullable()->comment('错误信息');
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$table->timestamps();
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// 索引
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$table->index(['provider', 'created_at']);
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});
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}
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/**
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* 回滚迁移：删除 AI 相关的两张数据表
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*/
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public function down(): void
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{
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Schema::dropIfExists('ai_usage_logs');
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Schema::dropIfExists('ai_provider_configs');
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}
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};
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