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40 lines
1.4 KiB
40 lines
1.4 KiB
from rest_framework.pagination import LimitOffsetPagination
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from rest_framework.request import Request
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from assets.models import Node
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class AssetLimitOffsetPagination(LimitOffsetPagination):
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"""
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需要与 `assets.api.mixin.FilterAssetByNodeMixin` 配合使用
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"""
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def get_count(self, queryset):
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"""
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1. 如果查询节点下的所有资产，那 count 使用 Node.assets_amount
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2. 如果有其他过滤条件使用 super
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3. 如果只查询该节点下的资产使用 super
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"""
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exclude_query_params = {
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self.limit_query_param,
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self.offset_query_param,
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'node', 'all', 'show_current_asset',
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'node_id', 'display', 'draw', 'fields_size',
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}
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for k, v in self._request.query_params.items():
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if k not in exclude_query_params and v is not None:
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return super().get_count(queryset)
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is_query_all = self._view.is_query_node_all_assets
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if is_query_all:
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node = self._view.node
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if not node:
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node = Node.org_root()
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return node.assets_amount
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return super().get_count(queryset)
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def paginate_queryset(self, queryset, request: Request, view=None):
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self._request = request
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self._view = view
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return super().paginate_queryset(queryset, request, view=None)
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