Starting to implement BOM management

- Each part can be made of other parts
- Disable tracking and project apps for now
- Project will change (eventually) to work order
- Part parameters have been disabled (for now)

InvenTree/part/models.py

@@ -21,7 +21,10 @@ class PartCategory(InvenTreeTree):
 
 
 class Part(models.Model):
-    """ Represents a """
+    """ Represents an abstract part
+    Parts can be "stocked" in multiple warehouses,
+    and can be combined to form other parts
+    """
 
     # Short name of the part
     name = models.CharField(max_length=100)
@@ -92,84 +95,4 @@ class Part(models.Model):
         return projects
 
 
-class PartParameterTemplate(models.Model):
-    """ A PartParameterTemplate pre-defines a parameter field,
-    ready to be copied for use with a given Part.
-    A PartParameterTemplate can be optionally associated with a PartCategory
-    """
-    name = models.CharField(max_length=20, unique=True)
-    units = models.CharField(max_length=10, blank=True)
 
-    # Parameter format
-    PARAM_NUMERIC = 10
-    PARAM_TEXT = 20
-    PARAM_BOOL = 30
-
-    PARAM_TYPE_CODES = {
-        PARAM_NUMERIC: _("Numeric"),
-        PARAM_TEXT: _("Text"),
-        PARAM_BOOL: _("Bool")
-    }
-
-    format = models.PositiveIntegerField(
-        default=PARAM_NUMERIC,
-        choices=PARAM_TYPE_CODES.items(),
-        validators=[MinValueValidator(0)])
-
-    def __str__(self):
-        return "{name} ({units})".format(
-            name=self.name,
-            units=self.units)
-
-    class Meta:
-        verbose_name = "Parameter Template"
-        verbose_name_plural = "Parameter Templates"
-
-
-class CategoryParameterLink(models.Model):
-    """ Links a PartParameterTemplate to a PartCategory
-    """
-    category = models.ForeignKey(PartCategory, on_delete=models.CASCADE)
-    template = models.ForeignKey(PartParameterTemplate, on_delete=models.CASCADE)
-
-    def __str__(self):
-        return "{name} - {cat}".format(
-            name=self.template.name,
-            cat=self.category)
-
-    class Meta:
-        verbose_name = "Category Parameter"
-        verbose_name_plural = "Category Parameters"
-        unique_together = ('category', 'template')
-
-
-class PartParameter(models.Model):
-    """ PartParameter is associated with a single part
-    """
-
-    part = models.ForeignKey(Part, on_delete=models.CASCADE, related_name='parameters')
-    template = models.ForeignKey(PartParameterTemplate)
-
-    # Value data
-    value = models.CharField(max_length=50, blank=True)
-    min_value = models.CharField(max_length=50, blank=True)
-    max_value = models.CharField(max_length=50, blank=True)
-
-    def __str__(self):
-        return "{name} : {val}{units}".format(
-            name=self.template.name,
-            val=self.value,
-            units=self.template.units)
-
-    @property
-    def units(self):
-        return self.template.units
-
-    @property
-    def name(self):
-        return self.template.name
-
-    class Meta:
-        verbose_name = "Part Parameter"
-        verbose_name_plural = "Part Parameters"
-        unique_together = ('part', 'template')