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#gq:
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from django.contrib import admin
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from django.contrib.admin.models import DELETION
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from django.contrib.contenttypes.models import ContentType
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from django.urls import reverse, NoReverseMatch
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from django.utils.encoding import force_str
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from django.utils.html import escape
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from django.utils.safestring import mark_safe
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from django.utils.translation import gettext_lazy as _
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class LogEntryAdmin(admin.ModelAdmin):
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"""Admin操作日志自定义管理类：优化展示与权限控制"""
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list_filter = ['content_type'] # 按内容类型筛选
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search_fields = ['object_repr', 'change_message'] # 搜索对象描述、操作信息
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list_display_links = ['action_time', 'get_change_message'] # 可点击跳转字段
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list_display = ['action_time', 'user_link', 'content_type', 'object_link', 'get_change_message'] # 列表展示字段
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def has_add_permission(self, request):
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"""禁用添加：日志自动生成，不允许手动添加"""
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return False
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def has_change_permission(self, request, obj=None):
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"""仅超级用户/有权限用户可查看，禁止POST修改"""
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return (request.user.is_superuser or request.user.has_perm('admin.change_logentry')) and request.method != 'POST'
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def has_delete_permission(self, request, obj=None):
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"""禁用删除：日志需保留"""
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return False
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def object_link(self, obj):
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"""操作对象字段：非删除操作显示Admin编辑链接"""
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object_link = escape(obj.object_repr)
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if obj.action_flag != DELETION and obj.content_type:
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try:
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url = reverse(f'admin:{obj.content_type.app_label}_{obj.content_type.model}_change', args=[obj.object_id])
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object_link = f'<a href="{url}">{object_link}</a>'
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except NoReverseMatch:
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pass
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return mark_safe(object_link)
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object_link.admin_order_field = 'object_repr'
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object_link.short_description = _('object')
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def user_link(self, obj):
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"""操作用户字段：显示用户Admin编辑链接"""
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content_type = ContentType.objects.get_for_model(type(obj.user))
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user_link = escape(force_str(obj.user))
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try:
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url = reverse(f'admin:{content_type.app_label}_{content_type.model}_change', args=[obj.user.pk])
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user_link = f'<a href="{url}">{user_link}</a>'
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except NoReverseMatch:
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pass
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return mark_safe(user_link)
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user_link.admin_order_field = 'user'
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user_link.short_description = _('user')
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def get_queryset(self, request):
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"""预加载content_type，优化查询性能"""
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return super().get_queryset(request).prefetch_related('content_type')
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def get_actions(self, request):
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"""移除批量删除操作"""
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actions = super().get_actions(request)
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del actions['delete_selected']
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return actions |
