76 lines
2.7 KiB
Python
76 lines
2.7 KiB
Python
from pathlib import Path
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from django import forms
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from apps.scenarios.services import ScenarioNotFound, get_scenario
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from apps.scenarios.services import list_scenarios
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SUPPORTED_EXTENSIONS = {".txt", ".md", ".pdf", ".docx", ".zip", ".7z"}
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class MultipleFileInput(forms.ClearableFileInput):
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allow_multiple_selected = True
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class MultipleFileField(forms.FileField):
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widget = MultipleFileInput
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def clean(self, data, initial=None):
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single_file_clean = super().clean
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if not data:
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return []
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if isinstance(data, (list, tuple)):
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return [single_file_clean(item, initial) for item in data]
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return [single_file_clean(data, initial)]
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class DocumentUploadForm(forms.Form):
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# 使用 ChoiceField 让表单自己维护场景选项，
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# 这样模板、校验和后续扩展都能围绕一个入口完成。
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scenario_id = forms.ChoiceField(label="场景", choices=())
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files = MultipleFileField(label="文件或资料包", required=False)
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file = forms.FileField(label="兼容单文件上传", required=False)
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.fields["scenario_id"].choices = [
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(scenario["id"], scenario["name"])
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for scenario in list_scenarios()
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]
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def clean_scenario_id(self):
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scenario_id = self.cleaned_data["scenario_id"]
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try:
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get_scenario(scenario_id)
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except ScenarioNotFound as exc:
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raise forms.ValidationError("场景不存在") from exc
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return scenario_id
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def clean_file(self):
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uploaded_file = self.cleaned_data["file"]
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if not uploaded_file:
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return uploaded_file
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extension = Path(uploaded_file.name).suffix.lower()
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if extension not in SUPPORTED_EXTENSIONS:
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raise forms.ValidationError("仅支持 .txt、.md、.pdf、.docx、.zip 和 .7z 文件")
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return uploaded_file
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def clean_files(self):
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uploaded_files = self.cleaned_data.get("files") or []
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for uploaded_file in uploaded_files:
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extension = Path(uploaded_file.name).suffix.lower()
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if extension not in SUPPORTED_EXTENSIONS:
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raise forms.ValidationError("仅支持 .txt、.md、.pdf、.docx、.zip 和 .7z 文件")
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return uploaded_files
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def clean(self):
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cleaned_data = super().clean()
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files = list(cleaned_data.get("files") or [])
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file = cleaned_data.get("file")
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if file:
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files.append(file)
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if not files:
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raise forms.ValidationError("请至少上传一个文件或一个 zip 资料包。")
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cleaned_data["uploaded_files"] = files
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return cleaned_data
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