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54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
from __future__ import unicode_literals
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from django.db import models
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from InvenTree.models import InvenTreeTree
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from part.models import Part
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class ProjectCategory(InvenTreeTree):
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""" ProjectCategory provides hierarchical organization of Project objects.
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Each ProjectCategory can contain zero-or-more child categories,
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and in turn can have zero-or-one parent category.
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"""
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class Meta:
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verbose_name = "Project Category"
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verbose_name_plural = "Project Categories"
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class Project(models.Model):
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""" A Project takes multiple Part objects.
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A project can output zero-or-more Part objects
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"""
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name = models.CharField(max_length=100)
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description = models.CharField(max_length=500, blank=True)
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category = models.ForeignKey(ProjectCategory, on_delete=models.CASCADE)
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def __str__(self):
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return self.name
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class ProjectPart(models.Model):
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""" A project part associates a single part with a project
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The quantity of parts required for a single-run of that project is stored.
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The overage is the number of extra parts that are generally used for a single run.
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"""
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# Overage types
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OVERAGE_PERCENT = 0
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OVERAGE_ABSOLUTE = 1
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part = models.ForeignKey(Part, on_delete=models.CASCADE)
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project = models.ForeignKey(Project, on_delete=models.CASCADE)
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quantity = models.IntegerField()
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overage = models.FloatField()
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overage_type = models.IntegerField(
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choices=[
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(OVERAGE_PERCENT, "Percent"),
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(OVERAGE_ABSOLUTE, "Absolute")
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])
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def __str__(self):
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return "{quan} x {name}".format(
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name = self.part.name,
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quan = self.quantity) |