Initial commit: LAN Manager with Go backend and Vue frontend

server/handlers/logs.go

@@ -0,0 +1,51 @@
+package handlers
+
+import (
+	"database/sql"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"lan-manager/server/db"
+	"lan-manager/server/models"
+)
+
+type LogHandler struct{}
+
+func NewLogHandler() *LogHandler {
+	return &LogHandler{}
+}
+
+func (h *LogHandler) List(c *gin.Context) {
+	action := c.Query("action")
+	date := c.Query("date")
+	query := `SELECT id, action, entity_type, entity_id, entity_name, old_value, new_value, source_ip, username, created_at FROM operation_logs WHERE 1=1`
+	args := []interface{}{}
+	if action != "" {
+		query += ` AND action = ?`
+		args = append(args, action)
+	}
+	if date != "" {
+		query += ` AND DATE(created_at) = ?`
+		args = append(args, date)
+	}
+	query += ` ORDER BY created_at DESC LIMIT 1000`
+
+	rows, err := db.DB.Query(query, args...)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	defer rows.Close()
+	logs := []models.OperationLog{}
+	for rows.Next() {
+		var l models.OperationLog
+		var eid sql.NullInt64
+		if err := rows.Scan(&l.ID, &l.Action, &l.EntityType, &eid, &l.EntityName, &l.OldValue, &l.NewValue, &l.SourceIP, &l.Username, &l.CreatedAt); err == nil {
+			if eid.Valid {
+				l.EntityID = &eid.Int64
+			}
+			logs = append(logs, l)
+		}
+	}
+	c.JSON(http.StatusOK, logs)
+}