38 lines
1.3 KiB
Python
38 lines
1.3 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"}
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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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file = forms.FileField(label="文件")
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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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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 和 .docx 文件")
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return uploaded_file
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