2019-07-02 09:51:50 +00:00
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# -*- coding: utf-8 -*-
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#
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from django.http import JsonResponse
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from django.core.cache import cache
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from django.utils.translation import ugettext_lazy as _
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from django.contrib import messages
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from ..const import KEY_CACHE_RESOURCES_ID
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__all__ = [
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"JSONResponseMixin", "IDInCacheFilterMixin", "IDExportFilterMixin",
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"IDInFilterMixin", "ApiMessageMixin"
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]
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class JSONResponseMixin(object):
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"""JSON mixin"""
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@staticmethod
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def render_json_response(context):
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return JsonResponse(context)
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class IDInFilterMixin(object):
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def filter_queryset(self, queryset):
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queryset = super(IDInFilterMixin, self).filter_queryset(queryset)
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id_list = self.request.query_params.get('id__in')
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if id_list:
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import json
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try:
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ids = json.loads(id_list)
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except Exception as e:
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return queryset
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if isinstance(ids, list):
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queryset = queryset.filter(id__in=ids)
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return queryset
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class IDInCacheFilterMixin(object):
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def filter_queryset(self, queryset):
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2019-07-03 14:28:20 +00:00
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queryset = super().filter_queryset(queryset)
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2019-07-02 09:51:50 +00:00
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spm = self.request.query_params.get('spm')
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2019-07-03 14:28:20 +00:00
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if not spm:
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return queryset
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2019-07-02 09:51:50 +00:00
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cache_key = KEY_CACHE_RESOURCES_ID.format(spm)
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resources_id = cache.get(cache_key)
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if resources_id and isinstance(resources_id, list):
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queryset = queryset.filter(id__in=resources_id)
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return queryset
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class IDExportFilterMixin(object):
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def filter_queryset(self, queryset):
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# 下载导入模版
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if self.request.query_params.get('template') == 'import':
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return []
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else:
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return super(IDExportFilterMixin, self).filter_queryset(queryset)
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class ApiMessageMixin:
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success_message = _("%(name)s was %(action)s successfully")
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_action_map = {"create": _("create"), "update": _("update")}
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def get_success_message(self, cleaned_data):
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if not isinstance(cleaned_data, dict):
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return ''
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data = {k: v for k, v in cleaned_data.items()}
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action = getattr(self, "action", "create")
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data["action"] = self._action_map.get(action)
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try:
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message = self.success_message % data
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except:
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message = ''
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return message
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def dispatch(self, request, *args, **kwargs):
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resp = super().dispatch(request, *args, **kwargs)
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if request.method.lower() in ("get", "delete", "patch"):
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return resp
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if resp.status_code >= 400:
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return resp
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message = self.get_success_message(resp.data)
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if message:
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messages.success(request, message)
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2019-07-04 13:17:39 +00:00
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return resp
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