338 lines
11 KiB
Bash
338 lines
11 KiB
Bash
#!/bin/bash
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# ===========================================
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# 学生换班级处理脚本 (修复版本)
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# 处理类型: CLASS_CHANGE(换班级)
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# ===========================================
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set -euo pipefail
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# Force C locale to ensure consistent behavior across systems
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export LANG=C
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export LC_ALL=C
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# Load configuration
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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CONFIG_FILE="${SCRIPT_DIR}/data.conf"
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if [[ ! -f "$CONFIG_FILE" ]]; then
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echo "错误：配置文件 $CONFIG_FILE 未找到！"
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exit 1
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fi
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source "$CONFIG_FILE"
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# Create log directory
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mkdir -p "$LOG_DIR"
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# Log file
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LOG_FILE="${LOG_DIR}/process_student_class_change_fixed_$(date +%Y%m%d_%H%M%S).log"
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# Lock file to prevent multiple instances
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LOCK_FILE="${SCRIPT_DIR}/process_student_class_change_fixed.lock"
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# Functions
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log() {
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local level="$1"
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local message="$2"
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local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
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echo "[$timestamp] [$level] $message" | tee -a "$LOG_FILE"
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}
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error_exit() {
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local message="$1"
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log "ERROR" "$message"
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# Remove lock file
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[[ -f "$LOCK_FILE" ]] && rm -f "$LOCK_FILE"
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exit 1
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}
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# Database functions - Fixed version
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execute_sql() {
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local sql="$1"
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local result
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result=$(mysql -h"$DB_HOST" -P"$DB_PORT" -u"$DB_USER" -p"$DB_PASS" "$DB_NAME" -e "$sql" 2>&1)
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local exit_code=$?
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if [[ $exit_code -ne 0 ]]; then
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log "ERROR" "SQL执行失败 (退出码: $exit_code)"
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log "ERROR" "数据库连接: $DB_USER@$DB_HOST:$DB_PORT/$DB_NAME"
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log "ERROR" "失败的SQL: $sql"
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log "ERROR" "MySQL错误详情: $result"
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return 1
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fi
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echo "$result"
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}
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# Database query function - Fixed version for cross-platform compatibility
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execute_query() {
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local sql="$1"
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local result
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# Use -ss for ultra-silent mode to ensure clean tab-separated output
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result=$(mysql -h"$DB_HOST" -P"$DB_PORT" -u"$DB_USER" -p"$DB_PASS" -ss "$DB_NAME" -e "$sql" 2>&1)
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local exit_code=$?
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if [[ $exit_code -ne 0 ]]; then
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log "ERROR" "数据库查询执行失败 (退出码: $exit_code)"
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log "ERROR" "数据库连接: $DB_USER@$DB_HOST:$DB_PORT/$DB_NAME"
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log "ERROR" "失败的SQL: $sql"
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log "ERROR" "MySQL错误详情: $result"
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return 1
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fi
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echo "$result"
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}
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# Process student class change
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process_student_class_change() {
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local record_id="$1"
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local student_id="$2"
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local student_no="$3"
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local new_class_id="$4"
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local operator_id="${5:-1}"
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# Validate input parameters
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if [[ -z "$record_id" || -z "$student_id" || -z "$student_no" || -z "$new_class_id" ]]; then
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log "ERROR" "参数不完整 - record_id: '$record_id', student_id: '$student_id', student_no: '$student_no', new_class_id: '$new_class_id'"
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return 1
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fi
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log "INFO" "Processing student class change - ID: $record_id, Student: $student_no ($student_id), New Class ID: $new_class_id"
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# Get new class information
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local class_info_sql="
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SELECT
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c.college_id, c.college_name, c.major_id, c.major_name,
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c.class_code, c.class_name, c.class_type, c.grade,
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c.training_type, c.counselor_id, c.counselor_name,
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c.class_teacher_id, c.class_teacher_name, c.school_system
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FROM xg_class_msg c
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WHERE c.id = $new_class_id AND c.deleted = 0
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"
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local class_info
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class_info=$(execute_query "$class_info_sql")
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if [[ -z "$class_info" || "$class_info" == *"Empty set"* ]]; then
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log "ERROR" "获取班级ID为 $new_class_id 的班级信息失败"
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return 1
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fi
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# Parse class information - Fixed parsing logic
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local class_data
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class_data=$(echo "$class_info" | grep -v "^mysql:" | grep -v "^$" | head -n 1)
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if [[ -z "$class_data" ]]; then
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log "ERROR" "解析班级信息失败，无法获取数据行"
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return 1
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fi
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# Use cut to extract specific fields reliably
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local college_id=$(echo "$class_data" | cut -f1)
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local college_name=$(echo "$class_data" | cut -f2)
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local major_id=$(echo "$class_data" | cut -f3)
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local major_name=$(echo "$class_data" | cut -f4)
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local class_code=$(echo "$class_data" | cut -f5)
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local class_name=$(echo "$class_data" | cut -f6)
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local class_type=$(echo "$class_data" | cut -f7)
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local grade=$(echo "$class_data" | cut -f8)
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local training_type=$(echo "$class_data" | cut -f9)
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local counselor_id=$(echo "$class_data" | cut -f10)
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local counselor_name=$(echo "$class_data" | cut -f11)
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local class_teacher_id=$(echo "$class_data" | cut -f12)
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local class_teacher_name=$(echo "$class_data" | cut -f13)
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local school_system=$(echo "$class_data" | cut -f14)
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# Handle NULL values for IDs
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local counselor_id_value class_teacher_id_value
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if [[ "$counselor_id" == "NULL" || -z "$counselor_id" ]]; then
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counselor_id_value="NULL"
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else
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counselor_id_value="'$counselor_id'"
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fi
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if [[ "$class_teacher_id" == "NULL" || -z "$class_teacher_id" ]]; then
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class_teacher_id_value="NULL"
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else
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class_teacher_id_value="'$class_teacher_id'"
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fi
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# Start transaction
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local transaction_sql="
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START TRANSACTION;
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-- 1. Backup original data to his tables (ignore if already exists)
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INSERT IGNORE INTO xg_student_msg_his SELECT * FROM xg_student_msg WHERE id = $student_id;
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INSERT IGNORE INTO xg_class_pos_msg_his SELECT * FROM xg_class_pos_msg WHERE student_id = $student_id;
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-- 2. Terminate cadre positions (干部信息终止)
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UPDATE xg_class_pos_msg SET
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is_current = 0,
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cadre_status = '4', -- 免职
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dismissal_date = CURDATE(),
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dismissal_reason = '学生换班级',
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term_end_date = CURDATE(),
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term_duration = TIMESTAMPDIFF(MONTH, term_start_date, CURDATE()),
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update_by = $operator_id,
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update_time = NOW()
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WHERE student_id = $student_id AND is_current = 1;
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-- 3. Update student information with new class data
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UPDATE xg_student_msg SET
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-- 基础班级信息
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college_id = '$college_id',
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college_name = '$college_name',
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major_id = '$major_id',
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major_name = '$major_name',
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class_id = '$new_class_id',
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class_name = '$class_name',
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grade = '$grade',
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-- 预留字段从班级表关联获取的数据 (7182-7195行)
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school_system = '$school_system',
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academic_level = '$class_type', -- class_type 对应 academic_level
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training_type = '$training_type',
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counselor_id = $counselor_id_value,
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counselor_name = '$counselor_name',
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class_teacher_id = $class_teacher_id_value,
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class_teacher_name = '$class_teacher_name',
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-- 更新信息
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update_by = $operator_id,
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update_time = NOW()
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WHERE id = $student_id;
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-- 4. Update class change record status
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UPDATE xg_student_class_change SET
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status = '1', -- 已处理
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update_by = $operator_id,
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update_time = NOW()
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WHERE id = $record_id;
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COMMIT;
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"
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# 执行事务
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if execute_sql "$transaction_sql"; then
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log "INFO" "成功处理学生换班级 - ID: $record_id, 学生: $student_no"
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return 0
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else
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log "ERROR" "处理学生换班级失败 - ID: $record_id, 学生: $student_no"
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return 1
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fi
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}
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# Main function
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main() {
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log "INFO" "启动学生换班级处理守护进程 (修复版本)"
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log "INFO" "处理类型: CLASS_CHANGE(换班级)"
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log "INFO" "以连续模式运行，间隔10分钟"
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# 测试数据库连接
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log "INFO" "正在测试数据库连接..."
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log "INFO" "连接信息: $DB_USER@$DB_HOST:$DB_PORT/$DB_NAME"
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if ! execute_sql "SELECT 1;" >/dev/null 2>&1; then
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error_exit "数据库连接失败 - 请检查连接参数和网络连接"
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fi
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log "INFO" "数据库连接测试成功"
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# Main processing loop
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while true; do
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log "INFO" "开始新的处理周期"
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# 获取未处理的记录
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local query_sql="
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SELECT id, student_id, student_no, new_class_id, update_by
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FROM xg_student_class_change
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WHERE status = '0'
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AND deleted = 0
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AND effective_time <= NOW()
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ORDER BY create_time ASC
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LIMIT $BATCH_SIZE;
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"
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local records
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if ! records=$(execute_query "$query_sql"); then
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log "ERROR" "获取待处理记录失败，${CYCLE_INTERVAL}秒后重试"
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sleep $CYCLE_INTERVAL
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continue
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fi
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# 检查是否有记录需要处理（过滤掉空行、MySQL警告信息和表头）
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local clean_records
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# 过滤掉MySQL警告、空行，然后排除表头行（第一行通常是列名）
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local filtered_records
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filtered_records=$(echo "$records" | grep -v "^mysql:" | grep -v "^$" | sed '1d')
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clean_records=$(echo "$filtered_records" | wc -l)
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# 去除可能的空白字符
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clean_records=$(echo "$clean_records" | tr -d ' ')
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if [[ $clean_records -eq 0 ]]; then
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log "INFO" "未找到未处理的记录，正在等待..."
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else
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log "INFO" "找到 $clean_records 条待处理记录"
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# 调试：显示前几条记录的信息
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if [[ $clean_records -gt 0 ]]; then
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log "DEBUG" "待处理记录预览:"
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echo "$filtered_records" | head -3 | while read -r line; do
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log "DEBUG" " $line"
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done
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fi
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local processed_count=0
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local failed_count=0
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# Create a temporary file to store records for processing
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local temp_records_file="${SCRIPT_DIR}/temp_class_change_records_fixed_$$.txt"
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echo "$filtered_records" > "$temp_records_file"
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# Process each record from the temporary file
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while IFS=$'\t' read -r record_id student_id student_no new_class_id operator_id; do
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# Skip empty lines or invalid records
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[[ -z "$record_id" || -z "$student_id" || -z "$student_no" || -z "$new_class_id" ]] && continue
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# Log the record being processed for debugging
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log "INFO" "读取到记录 - ID: $record_id, 学生ID: $student_id, 学号: $student_no, 新班级ID: $new_class_id, 操作员: ${operator_id:-1}"
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local retry_count=0
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local success=false
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while [[ $retry_count -lt $MAX_RETRY && $success == false ]]; do
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if process_student_class_change "$record_id" "$student_id" "$student_no" "$new_class_id" "$operator_id"; then
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success=true
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((processed_count++))
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else
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((retry_count++))
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if [[ $retry_count -lt $MAX_RETRY ]]; then
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log "WARN" "处理失败，$RETRY_DELAY 秒后重试... (尝试 $retry_count/$MAX_RETRY)"
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sleep $RETRY_DELAY
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fi
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fi
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done
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if [[ $success == false ]]; then
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((failed_count++))
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log "ERROR" "$MAX_RETRY 次尝试后仍处理失败 - ID: $record_id"
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fi
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done < "$temp_records_file"
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# Clean up temporary file
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rm -f "$temp_records_file"
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log "INFO" "处理周期完成 - 已处理: $processed_count, 失败: $failed_count"
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fi
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# 等待配置的间隔时间后开始下一个周期
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log "INFO" "等待 $CYCLE_INTERVAL 秒后开始下一个处理周期..."
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sleep $CYCLE_INTERVAL
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done
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}
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# Run main function
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main "$@"
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