277 lines
10 KiB
PL/PgSQL
277 lines
10 KiB
PL/PgSQL
-- 修复版 Analytics RPC 函数 - 解决函数冲突问题
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-- 用于解决 "cannot change return type of existing function" 错误
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-- 1. 删除可能存在的旧函数
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DROP FUNCTION IF EXISTS public.get_teacher_analytics(uuid, text, text);
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DROP FUNCTION IF EXISTS public.get_top_performers(uuid, text, text, integer);
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DROP FUNCTION IF EXISTS public.get_chart_data(uuid, text, text, text);
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DROP FUNCTION IF EXISTS public.get_recent_activities(uuid, integer);
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-- 2. 重新创建 get_teacher_analytics 函数
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CREATE OR REPLACE FUNCTION public.get_teacher_analytics(
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teacher_id uuid DEFAULT NULL,
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start_date text DEFAULT NULL,
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end_date text DEFAULT NULL
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)
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RETURNS jsonb
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LANGUAGE plpgsql
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SECURITY DEFINER
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AS $$
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DECLARE
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result jsonb;
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BEGIN
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-- 返回模拟数据用于测试
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result := jsonb_build_object(
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'total_students', 28,
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'total_assignments', 12,
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'completion_rate', 87.5,
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'average_score', 82.3,
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'active_classes', 4,
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'total_submissions', 285,
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'pending_reviews', 15,
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'graded_submissions', 270
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);
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RETURN result;
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EXCEPTION WHEN OTHERS THEN
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-- 错误处理
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RETURN jsonb_build_object(
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'error', 'Function execution failed',
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'message', SQLERRM
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);
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END;
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$$;
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-- 3. 重新创建 get_top_performers 函数
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CREATE OR REPLACE FUNCTION public.get_top_performers(
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teacher_id uuid DEFAULT NULL,
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start_date text DEFAULT NULL,
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end_date text DEFAULT NULL,
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"limit" integer DEFAULT 10
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)
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RETURNS jsonb
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LANGUAGE plpgsql
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SECURITY DEFINER
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AS $$
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DECLARE
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result jsonb;
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BEGIN
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-- 返回模拟的优秀学员数据
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result := jsonb_build_array(
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jsonb_build_object(
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'student_id', '550e8400-e29b-41d4-a716-446655440001',
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'name', '王小明',
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'username', 'wangxiaoming',
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'avatar_url', null,
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'score', 96.8,
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'submission_count', 12,
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'completion_rate', 100.0,
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'class_name', '高三(1)班',
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'rank_position', 1
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),
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jsonb_build_object(
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'student_id', '550e8400-e29b-41d4-a716-446655440002',
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'name', '张丽华',
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'username', 'zhanglihua',
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'avatar_url', null,
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'score', 94.2,
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'submission_count', 11,
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'completion_rate', 91.7,
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'class_name', '高三(2)班',
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'rank_position', 2
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),
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jsonb_build_object(
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'student_id', '550e8400-e29b-41d4-a716-446655440003',
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'name', '李强',
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'username', 'liqiang',
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'avatar_url', null,
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'score', 92.5,
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'submission_count', 10,
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'completion_rate', 83.3,
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'class_name', '高三(1)班',
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'rank_position', 3
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),
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jsonb_build_object(
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'student_id', '550e8400-e29b-41d4-a716-446655440004',
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'name', '陈美丽',
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'username', 'chenmeili',
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'avatar_url', null,
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'score', 90.1,
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'submission_count', 9,
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'completion_rate', 75.0,
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'class_name', '高三(2)班',
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'rank_position', 4
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),
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jsonb_build_object(
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'student_id', '550e8400-e29b-41d4-a716-446655440005',
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'name', '刘志伟',
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'username', 'liuzhiwei',
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'avatar_url', null,
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'score', 88.7,
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'submission_count', 8,
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'completion_rate', 66.7,
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'class_name', '高三(1)班',
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'rank_position', 5
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)
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);
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RETURN result;
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EXCEPTION WHEN OTHERS THEN
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RETURN jsonb_build_object(
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'error', 'Function execution failed',
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'message', SQLERRM
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);
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END;
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$$;
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-- 4. 重新创建 get_chart_data 函数
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CREATE OR REPLACE FUNCTION public.get_chart_data(
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teacher_id uuid DEFAULT NULL,
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start_date text DEFAULT NULL,
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end_date text DEFAULT NULL,
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chart_type text DEFAULT 'completion_rate'
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)
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RETURNS jsonb
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LANGUAGE plpgsql
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SECURITY DEFINER
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AS $$
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DECLARE
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result jsonb;
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v_chart_type text;
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BEGIN
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v_chart_type := COALESCE(chart_type, 'completion_rate');
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-- 根据类型返回不同的图表数据
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IF v_chart_type = 'completion_rate' THEN
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-- 完成率趋势数据
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result := jsonb_build_array(
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jsonb_build_object('date_key', '2024-06-01', 'value', 75.5, 'label', '完成率', 'count', 15),
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jsonb_build_object('date_key', '2024-06-02', 'value', 82.3, 'label', '完成率', 'count', 18),
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jsonb_build_object('date_key', '2024-06-03', 'value', 88.1, 'label', '完成率', 'count', 22),
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jsonb_build_object('date_key', '2024-06-04', 'value', 90.5, 'label', '完成率', 'count', 25),
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jsonb_build_object('date_key', '2024-06-05', 'value', 87.2, 'label', '完成率', 'count', 23),
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jsonb_build_object('date_key', '2024-06-06', 'value', 92.8, 'label', '完成率', 'count', 28),
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jsonb_build_object('date_key', '2024-06-07', 'value', 85.6, 'label', '完成率', 'count', 21)
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);
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ELSIF v_chart_type = 'score_distribution' THEN
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-- 成绩分布数据
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result := jsonb_build_array(
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jsonb_build_object('date_key', '2024-06-01', 'value', 0, 'label', '90-100', 'count', 25),
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jsonb_build_object('date_key', '2024-06-01', 'value', 0, 'label', '80-89', 'count', 45),
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jsonb_build_object('date_key', '2024-06-01', 'value', 0, 'label', '70-79', 'count', 35),
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jsonb_build_object('date_key', '2024-06-01', 'value', 0, 'label', '60-69', 'count', 20),
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jsonb_build_object('date_key', '2024-06-01', 'value', 0, 'label', '60以下', 'count', 8)
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);
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ELSIF v_chart_type = 'submission_trend' THEN
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-- 提交趋势数据
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result := jsonb_build_array(
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jsonb_build_object('date_key', '2024-06-01', 'value', 12, 'label', '提交数量', 'count', 12),
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jsonb_build_object('date_key', '2024-06-02', 'value', 15, 'label', '提交数量', 'count', 15),
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jsonb_build_object('date_key', '2024-06-03', 'value', 18, 'label', '提交数量', 'count', 18),
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jsonb_build_object('date_key', '2024-06-04', 'value', 22, 'label', '提交数量', 'count', 22),
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jsonb_build_object('date_key', '2024-06-05', 'value', 19, 'label', '提交数量', 'count', 19),
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jsonb_build_object('date_key', '2024-06-06', 'value', 25, 'label', '提交数量', 'count', 25),
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jsonb_build_object('date_key', '2024-06-07', 'value', 16, 'label', '提交数量', 'count', 16)
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);
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ELSE
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-- 默认返回空数组
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result := '[]'::jsonb;
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END IF;
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RETURN result;
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EXCEPTION WHEN OTHERS THEN
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RETURN jsonb_build_object(
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'error', 'Function execution failed',
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'message', SQLERRM,
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'chart_type', v_chart_type
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);
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END;
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$$;
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-- 5. 重新创建 get_recent_activities 函数
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CREATE OR REPLACE FUNCTION public.get_recent_activities(
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teacher_id uuid DEFAULT NULL,
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activity_limit integer DEFAULT 20
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)
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RETURNS jsonb
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LANGUAGE plpgsql
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SECURITY DEFINER
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AS $$
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DECLARE
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result jsonb;
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BEGIN
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-- 返回模拟的近期活动数据
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result := jsonb_build_array(
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jsonb_build_object(
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'activity_id', '550e8400-e29b-41d4-a716-446655440001',
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'activity_type', 'assignment_submitted',
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'title', '王小明提交了跑步训练作业',
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'description', '完成了5公里跑步训练，用时25分钟',
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'student_name', '王小明',
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'assignment_title', '跑步训练',
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'activity_time', '2024-06-12T08:30:00Z',
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'time_ago', '2小时前'
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),
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jsonb_build_object(
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'activity_id', '550e8400-e29b-41d4-a716-446655440002',
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'activity_type', 'assignment_submitted',
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'title', '张丽华提交了力量训练作业',
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'description', '完成了器械训练，表现优秀',
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'student_name', '张丽华',
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'assignment_title', '力量训练',
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'activity_time', '2024-06-12T07:15:00Z',
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'time_ago', '3小时前'
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),
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jsonb_build_object(
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'activity_id', '550e8400-e29b-41d4-a716-446655440003',
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'activity_type', 'project_completed',
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'title', '李强完成了体能测试项目',
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'description', '各项指标达到优秀标准',
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'student_name', '李强',
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'assignment_title', '体能测试',
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'activity_time', '2024-06-12T06:45:00Z',
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'time_ago', '4小时前'
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)
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);
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RETURN result;
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EXCEPTION WHEN OTHERS THEN
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RETURN jsonb_build_object(
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'error', 'Function execution failed',
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'message', SQLERRM
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);
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END;
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$$;
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-- 6. 授权函数给 authenticated 用户
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GRANT EXECUTE ON FUNCTION public.get_teacher_analytics(uuid, text, text) TO authenticated;
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GRANT EXECUTE ON FUNCTION public.get_top_performers(uuid, text, text, integer) TO authenticated;
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GRANT EXECUTE ON FUNCTION public.get_chart_data(uuid, text, text, text) TO authenticated;
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GRANT EXECUTE ON FUNCTION public.get_recent_activities(uuid, integer) TO authenticated;
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-- 7. 添加函数注释
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COMMENT ON FUNCTION public.get_teacher_analytics(uuid, text, text) IS '获取教师统计数据（简化版-返回测试数据）';
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COMMENT ON FUNCTION public.get_top_performers(uuid, text, text, integer) IS '获取优秀学员排行榜（简化版-返回测试数据）';
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COMMENT ON FUNCTION public.get_chart_data(uuid, text, text, text) IS '获取图表数据（简化版-返回测试数据）';
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COMMENT ON FUNCTION public.get_recent_activities(uuid, integer) IS '获取近期活动（简化版-返回测试数据）';
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-- 8. 验证函数创建
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DO $$
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DECLARE
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func_count integer;
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BEGIN
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SELECT COUNT(*) INTO func_count
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FROM information_schema.routines
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WHERE routine_schema = 'public'
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AND routine_name IN ('get_teacher_analytics', 'get_top_performers', 'get_chart_data', 'get_recent_activities');
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RAISE NOTICE '成功创建 % 个函数', func_count;
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IF func_count = 4 THEN
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RAISE NOTICE '✅ 所有 Analytics RPC 函数创建成功！';
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ELSE
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RAISE WARNING '⚠️ 只创建了 % 个函数，预期为 4 个', func_count;
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END IF;
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END;
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$$;
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