Merge pull request #318 from SchrodingersGat/deep-part-copy

Deep part copy

InvenTree/InvenTree/views.py

@@ -116,7 +116,7 @@ class AjaxMixin(object):
         """
         return {}
 
-    def renderJsonResponse(self, request, form=None, data={}, context={}):
+    def renderJsonResponse(self, request, form=None, data={}, context=None):
         """ Render a JSON response based on specific class context.
 
         Args:
@@ -129,6 +129,12 @@ class AjaxMixin(object):
             JSON response object
         """
 
+        if context is None:
+            try:
+                context = self.get_context_data()
+            except AttributeError:
+                context = {}
+
         if form:
             context['form'] = form
 

InvenTree/part/forms.py

@@ -75,11 +75,20 @@ class EditPartAttachmentForm(HelperForm):
 class EditPartForm(HelperForm):
     """ Form for editing a Part object """
 
-    confirm_creation = forms.BooleanField(required=False, initial=False, help_text='Confirm part creation', widget=forms.HiddenInput())
+    deep_copy = forms.BooleanField(required=False,
+                                   initial=True,
+                                   help_text="Perform 'deep copy' which will duplicate all BOM data for this part",
+                                   widget=forms.HiddenInput())
+
+    confirm_creation = forms.BooleanField(required=False,
+                                          initial=False,
+                                          help_text='Confirm part creation',
+                                          widget=forms.HiddenInput())
 
     class Meta:
         model = Part
         fields = [
+            'deep_copy',
             'confirm_creation',
             'category',
             'name',

InvenTree/part/models.py

@@ -16,6 +16,7 @@ from django.core.exceptions import ValidationError
 from django.urls import reverse
 from django.conf import settings
 
+from django.core.files.base import ContentFile
 from django.db import models, transaction
 from django.core.validators import MinValueValidator
 
@@ -533,6 +534,33 @@ class Part(models.Model):
         """ Return the number of supplier parts available for this part """
         return self.supplier_parts.count()
 
+    def deepCopy(self, other, **kwargs):
+        """ Duplicates non-field data from another part.
+        Does not alter the normal fields of this part,
+        but can be used to copy other data linked by ForeignKey refernce.
+
+        Keyword Args:
+            image: If True, copies Part image (default = True)
+            bom: If True, copies BOM data (default = False)
+        """
+
+        # Copy the part image
+        if kwargs.get('image', True):
+            image_file = ContentFile(other.image.read())
+            image_file.name = rename_part_image(self, 'test.png')
+
+            self.image = image_file
+
+        # Copy the BOM data
+        if kwargs.get('bom', False):
+            for item in other.bom_items.all():
+                # Point the item to THIS part
+                item.part = self
+                item.pk = None
+                item.save()
+
+        self.save()
+
     def export_bom(self, **kwargs):
 
         data = tablib.Dataset(headers=[

InvenTree/part/templates/part/copy_part.html

@@ -0,0 +1,24 @@
+{% extends "modal_form.html" %}
+
+{% block pre_form_content %}
+
+{{ block.super }}
+
+<div class='alert alert-info alert-block'>
+    <b>Duplicate Part</b><br>
+    Make a copy of part '{{ part.full_name }}'.
+</div>
+
+{% if matches %}
+<b>Possible Matching Parts</b>
+<p>The new part may be a duplicate of these existing parts:</p>
+<ul class='list-group'>
+{% for match in matches %}
+<li class='list-group-item list-group-item-condensed'>
+    {{ match.part.full_name }} - <i>{{ match.part.description }}</i> ({{ match.ratio }}%)
+</li>
+{% endfor %}
+</ul>
+{% endif %}
+
+{% endblock %}

InvenTree/part/templates/part/detail.html

@@ -14,8 +14,8 @@
             <span class="caret"></span></button>
             <ul class="dropdown-menu">
                 {% if part.active %}
-                <li><a href='#' id='duplicate-part' title='Duplicate Part'>Duplicate</a></li>
                 <li><a href="#" id='edit-part' title='Edit part'>Edit</a></li>
+                <li><a href='#' id='duplicate-part' title='Duplicate Part'>Duplicate</a></li>
                 <hr>
                 <li><a href="#" id='deactivate-part' title='Deactivate part'>Deactivate</a></li>
                 {% else %}
@@ -131,12 +131,9 @@
     
     $("#duplicate-part").click(function() {
         launchModalForm(
-            "{% url 'part-create' %}",
+            "{% url 'part-duplicate' part.id %}",
             {
                 follow: true,
-                data: {
-                    copy: {{ part.id }},
-                },
             }
         );
     });

InvenTree/part/urls.py

@@ -36,6 +36,7 @@ part_detail_urls = [
     url(r'^delete/?', views.PartDelete.as_view(), name='part-delete'),
     url(r'^bom-export/?', views.BomDownload.as_view(), name='bom-export'),
     url(r'^validate-bom/', views.BomValidate.as_view(), name='bom-validate'),
+    url(r'^duplicate/', views.PartDuplicate.as_view(), name='part-duplicate'),
     
     url(r'^track/?', views.PartDetail.as_view(template_name='part/track.html'), name='part-track'),
     url(r'^attachments/?', views.PartDetail.as_view(template_name='part/attachments.html'), name='part-attachments'),

InvenTree/part/views.py

@@ -124,13 +124,122 @@ class PartAttachmentDelete(AjaxDeleteView):
         }
 
 
+class PartDuplicate(AjaxCreateView):
+    """ View for duplicating an existing Part object.
+
+    - Part <pk> is provided in the URL '/part/<pk>/copy/'
+    - Option for 'deep-copy' which will duplicate all BOM items (default = True)
+    """
+
+    model = Part
+    form_class = part_forms.EditPartForm
+
+    ajax_form_title = "Duplicate Part"
+    ajax_template_name = "part/copy_part.html"
+
+    def get_data(self):
+        return {
+            'success': 'Copied part'
+        }
+
+    def get_part_to_copy(self):
+        try:
+            return Part.objects.get(id=self.kwargs['pk'])
+        except Part.DoesNotExist:
+            return None
+
+    def get_context_data(self):
+        return {
+            'part': self.get_part_to_copy()
+        }
+
+    def get_form(self):
+        form = super(AjaxCreateView, self).get_form()
+
+        # Force display of the 'deep_copy' widget
+        form.fields['deep_copy'].widget = CheckboxInput()
+
+        return form
+
+    def post(self, request, *args, **kwargs):
+        """ Capture the POST request for part duplication
+
+        - If the deep_copy object is set, copy all the BOM items too!
+        """
+
+        form = self.get_form()
+
+        context = self.get_context_data()
+
+        valid = form.is_valid()
+
+        name = request.POST.get('name', None)
+        
+        if name:
+            matches = match_part_names(name)
+
+            if len(matches) > 0:
+                context['matches'] = matches
+            
+                # Enforce display of the checkbox
+                form.fields['confirm_creation'].widget = CheckboxInput()
+                
+                # Check if the user has checked the 'confirm_creation' input
+                confirmed = str2bool(request.POST.get('confirm_creation', False))
+
+                if not confirmed:
+                    form.errors['confirm_creation'] = ['Possible matches exist - confirm creation of new part']
+                    
+                    form.pre_form_warning = 'Possible matches exist - confirm creation of new part'
+                    valid = False
+
+        data = {
+            'form_valid': valid
+        }
+
+        if valid:
+            # Create the new Part
+            part = form.save()
+
+            data['pk'] = part.pk
+
+            deep_copy = str2bool(request.POST.get('deep_copy', False))
+
+            original = self.get_part_to_copy()
+
+            if original:
+                    part.deepCopy(original, bom=deep_copy)
+
+            try:
+                data['url'] = part.get_absolute_url()
+            except AttributeError:
+                pass
+
+        if valid:
+            pass
+
+        return self.renderJsonResponse(request, form, data, context=context)
+
+    def get_initial(self):
+        """ Get initial data based on the Part to be copied from.
+        """
+
+        part = self.get_part_to_copy()
+
+        if part:
+            initials = model_to_dict(part)
+        else:
+            initials = super(AjaxCreateView, self).get_initial()
+
+        return initials
+
+
 class PartCreate(AjaxCreateView):
     """ View for creating a new Part object.
 
     Options for providing initial conditions:
     
     - Provide a category object as initial data
-    - Copy an existing Part
     """
     model = Part
     form_class = part_forms.EditPartForm
@@ -224,22 +333,9 @@ class PartCreate(AjaxCreateView):
         """ Get initial data for the new Part object:
 
         - If a category is provided, pre-fill the Category field
-        - If 'copy' parameter is provided, copy from referenced Part
         """
 
-        # Is the client attempting to copy an existing part?
-        part_to_copy = self.request.GET.get('copy', None)
-
-        if part_to_copy:
-            try:
-                original = Part.objects.get(pk=part_to_copy)
-                initials = model_to_dict(original)
-                self.ajax_form_title = "Copy Part '{p}'".format(p=original.name)
-            except Part.DoesNotExist:
-                initials = super(PartCreate, self).get_initial()
-
-        else:
-            initials = super(PartCreate, self).get_initial()
+        initials = super(PartCreate, self).get_initial()
 
         if self.get_category_id():
             try:

InvenTree/static/css/inventree.css

@@ -162,6 +162,10 @@
   z-index: 99999999;
 }
 
+.js-modal-form .checkbox {
+    margin-left: 0px;
+}
+
 .modal-dialog {
     width: 45%;
 }

InvenTree/templates/modal_form.html

@@ -1,6 +1,6 @@
 <div>
 {% if form.pre_form_info %}
-<div class='alert alert-info' role='alert' style='display: block;'>
+<div class='alert alert-info alert-block' role='alert'>
 {{ form.pre_form_info }}
 </div>
 {% endif %}