144 lines
4.2 KiB
Python
144 lines
4.2 KiB
Python
from django.contrib.auth import get_user_model
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from django.contrib.postgres.expressions import ArraySubquery
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from django.db import models
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from django.db.models import OuterRef
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from django.db.models.fields.related import RelatedField
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from django.db.models.functions import JSONObject
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from app.utils.helpers import recursive_getattr
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from uuid import uuid4
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User = get_user_model()
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class BaseQuerySet(models.QuerySet):
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def headers(self):
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"""Return the list of header for a list."""
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def _field(field):
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ret = {
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field.name: {
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"text": field.verbose_name.capitalize(),
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"align": "",
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"encrypted": field.name in self.model.Encryption.fields,
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"editable": field.name not in self.model.Serialization.excluded_fields_edit,
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"field_widget": "v-textarea",
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"choices": None,
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"details": True,
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"dynamic_field_type": field.name in self.model.Serialization.dynamic_field_type,
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}
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}
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if isinstance(field, RelatedField):
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ret[f"{field.name}__name"] = {
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"text": f"{field.verbose_name.capitalize()} - Name",
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"align": "",
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"encrypted": True,
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}
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ret[f"{field.name}__custom_identifier"] = {
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"text": f"{field.verbose_name.capitalize()} - Identifier",
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"align": "",
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"encrypted": True,
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}
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ret[field.name].update(
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align=" d-none",
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testing=123,
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field_widget="v-select",
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)
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if field.choices:
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ret[field.name].update(
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field_widget="v-select",
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choices=[
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{
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"value": c[0],
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"text": c[1],
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}
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for c in field.choices
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],
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)
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return ret
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fields = {}
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for field in self.model._meta.fields:
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if field.name in self.model.Serialization.excluded_fields:
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continue
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fields.update(_field(field))
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return fields
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def serialize(self):
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"""Serialize a queryset."""
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fields = []
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for field_name, _ in self.headers().items():
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fields.append(field_name)
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if hasattr(self.model, "history"):
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qs = self.annotate(
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history=ArraySubquery(
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self.model.history.model.objects.filter(id=OuterRef("id")).values(
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json=JSONObject(
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id="history_id",
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date="history_date",
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)
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)
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)
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)
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fields.append("history")
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else:
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qs = self
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return qs.values(*fields)
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class BaseManager(models.Manager.from_queryset(BaseQuerySet)):
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pass
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class BaseModel(models.Model):
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class Meta:
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abstract = True
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class Serialization:
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# Exclude fields from serialization
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excluded_fields = []
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excluded_fields_edit = ["id", "created_at", "last_modified_at"]
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dynamic_field_type = []
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class Encryption:
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fields = ["name", "description", "custom_identifier"]
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def serialize(self):
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ret = {}
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for field_name in self._meta.model.objects.headers().keys():
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value = recursive_getattr(self, field_name)
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if isinstance(value, BaseModel):
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value = value.id
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ret[field_name] = value
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return ret
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id = models.UUIDField(primary_key=True, default=uuid4, editable=False)
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name = models.TextField(max_length=2048, blank=True, null=True)
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description = models.TextField(max_length=2048, blank=True, null=True)
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custom_identifier = models.TextField(max_length=2048, null=True, blank=True)
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created_at = models.DateTimeField(auto_now_add=True)
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last_modified_at = models.DateTimeField(auto_now=True)
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objects = BaseManager()
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