fix: admin of printing module

stateflow/admin.py

@@ -214,11 +214,108 @@ class BusinessObjectAdmin(admin.ModelAdmin):
         return "-"
 
 
+class StateLogParameterRecordInline(admin.TabularInline):
+    """状态流转参数记录内联显示"""
+    model = models.StateLogParameterRecord
+    extra = 0
+    fields = ('parameters', 'remark', 'created_at')
+    readonly_fields = ('created_at',)
+    can_delete = False
+
+
 @admin.register(models.StateFlowRecord)
 class StateFlowRecordAdmin(admin.ModelAdmin):
-    list_display = ('id', 'business_object', 'state', 'completed_at', 'completed_by', 'is_cancelled', 'cancelled_at')
+    list_display = ('id', 'business_object', 'state', 'completed_at', 'completed_by', 'is_cancelled', 'cancelled_at', 'parameter_count')
     search_fields = ('business_object__name', 'state__name')
     list_filter = ('state', 'is_cancelled', 'completed_at', 'completed_by')
-    readonly_fields = ('business_object', 'state', 'completed_at', 'completed_by', 'cancelled_at')
-    fields = ('business_object', 'state', 'completed_at', 'completed_by', 'is_cancelled', 'cancelled_at')
+    readonly_fields = ('business_object', 'state', 'completed_at', 'completed_by', 'cancelled_at', 'parameters_summary')
+    fields = ('business_object', 'state', 'completed_at', 'completed_by', 'is_cancelled', 'cancelled_at', 'parameters_summary')
     autocomplete_fields = ('business_object', 'state', 'completed_by')
+    inlines = [StateLogParameterRecordInline]
+
+    @admin.display(description='参数记录数')
+    def parameter_count(self, obj):
+        count = obj.parameter_records.count()
+        return f"{count} 条" if count > 0 else "-"
+
+    @admin.display(description='参数汇总')
+    def parameters_summary(self, obj):
+        """显示所有参数的最新值汇总"""
+        summary = obj.get_all_parameters_summary(include_cancelled=True)
+        if summary:
+            items = [f"{k}: {v}" for k, v in list(summary.items())[:5]]
+            if len(summary) > 5:
+                items.append(f"... 共{len(summary)}个参数")
+            return mark_safe('<br>'.join(items))
+        return "-"
+
+
+@admin.register(models.ProcessNode)
+class ProcessNodeAdmin(admin.ModelAdmin):
+    """流程节点关联管理"""
+    list_display = ('id', 'process', 'state', 'order', 'created_at')
+    search_fields = ('process__name', 'state__name')
+    list_filter = ('process', 'created_at')
+    autocomplete_fields = ('process', 'state')
+    list_editable = ('order',)
+    ordering = ('process', 'order')
+
+    fieldsets = [
+        ('关联信息', {
+            'fields': ['process', 'state', 'order']
+        }),
+    ]
+
+
+@admin.register(models.StateLogParameterRecord)
+class StateLogParameterRecordAdmin(admin.ModelAdmin):
+    """状态流转参数记录管理"""
+    list_display = ('id', 'state_log', 'parameter_keys', 'remark_preview', 'created_at')
+    search_fields = ('state_log__business_object__name', 'state_log__state__name', 'remark')
+    list_filter = ('created_at', 'state_log__state')
+    readonly_fields = ('created_at', 'parameter_preview')
+    autocomplete_fields = ('state_log',)
+
+    fieldsets = [
+        ('关联信息', {
+            'fields': ['state_log']
+        }),
+        ('参数数据', {
+            'fields': ['parameters', 'parameter_preview', 'remark']
+        }),
+        ('时间信息', {
+            'fields': ['created_at']
+        }),
+    ]
+
+    @admin.display(description='参数键')
+    def parameter_keys(self, obj):
+        """显示参数键列表"""
+        keys = obj.get_all_keys()
+        if keys:
+            preview = ', '.join(keys[:5])
+            if len(keys) > 5:
+                preview += f' 等{len(keys)}个'
+            return preview
+        return "-"
+
+    @admin.display(description='备注')
+    def remark_preview(self, obj):
+        """显示备注预览"""
+        if obj.remark:
+            return obj.remark[:50] + ('...' if len(obj.remark) > 50 else '')
+        return "-"
+
+    @admin.display(description='参数详情')
+    def parameter_preview(self, obj):
+        """格式化显示参数详情"""
+        if obj.parameters:
+            items = []
+            for key, value in obj.parameters.items():
+                # 如果值太长，截断显示
+                value_str = str(value)
+                if len(value_str) > 100:
+                    value_str = value_str[:100] + '...'
+                items.append(f"<strong>{key}</strong>: {value_str}")
+            return mark_safe('<br>'.join(items))
+        return "-"