def ajax_add_child(request, part_id):
part = get_obj_by_id(part_id, request.user)
data = {}
if request.GET:
form = forms.AddChildForm(part.object, initial=request.GET)
else:
form = forms.AddChildForm(part.object, request.POST)
if form.is_valid():
child = get_obj_from_form(form, request.user)
part.add_child(child, form.cleaned_data["quantity"],
form.cleaned_data["order"],
form.cleaned_data["unit"], **form.extensions)
return {"result": "ok"}
else:
data["result"] = "error"
data["error"] = "invalid form"
form.fields["type"].widget = widgets.TextInput()
for field in ("type", "reference", "revision"):
form.fields[field].widget.attrs['readonly'] = 'on'
data.update({
"parent": {
"id": part.id,
"type": part.type,
"reference": part.reference,
"revision": part.revision,
},
"form": form.as_table()
})
return data
def ajax_attach(request, plmobject_id):
plmobject = get_obj_by_id(plmobject_id, request.user)
data = {}
if request.GET:
form = forms.PLMObjectForm(initial=request.GET)
else:
form = forms.PLMObjectForm(request.POST)
if form.is_valid():
attached = get_obj_from_form(form, request.user)
if hasattr(plmobject, "attach_to_document"):
plmobject.attach_to_document(attached)
elif hasattr(plmobject, "attach_to_part"):
plmobject.attach_to_part(attached)
return {"result": "ok"}
else:
data["result"] = "error"
data["error"] = "invalid form"
for field in ("type", "reference", "revision"):
form.fields[field].widget.attrs['readonly'] = 'on'
data.update({
"plmobject": {
"id": plmobject.id,
"type": plmobject.type,
"reference": plmobject.reference,
"revision": plmobject.revision,
},
"form": form.as_table()
})
return data
def add_child(request, obj_type, obj_ref, obj_revi):
"""
View to add a child to a part.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/bom-child/add/`
.. include:: views_params.txt
**Template:**
:file:`parts/bom_add.html`
**Context:**
``RequestContext``
``add_child_form``
a form to add a child (:class:`.AddChildForm`)
``link``
:class:`.ParentChildLink` being replaced
``link_creation``
Set to True
``attach``
set to (*obj*, "add_child")
"""
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi,
load_all=True)
if request.method == "POST" and request.POST:
add_child_form = forms.AddChildForm(obj.object, request.POST)
if add_child_form.is_valid():
child_obj = get_obj_from_form(add_child_form, request.user)
obj.add_child(child_obj,
add_child_form.cleaned_data["quantity"],
add_child_form.cleaned_data["order"],
add_child_form.cleaned_data["unit"],
**add_child_form.extensions)
return HttpResponseRedirect(obj.plmobject_url + "BOM-child/")
else:
if "type" in request.GET and request.GET["type"] in models.get_all_parts():
# use GET params only if they seems valid
initial = request.GET
else:
initial = None
add_child_form = forms.AddChildForm(obj.object, initial=initial)
ctx['current_page'] = 'BOM-child'
if ctx["results"]:
obj.precompute_can_add_child2()
orders = list(obj.parentchildlink_parent.values_list('order', flat=True))
initial_order = max(orders) + 10 if orders else 10
ctx['order'] = initial_order
ctx.update({'link_creation': True,
'add_child_form': add_child_form,
'attach' : (obj, "add_child")})
return r2r('parts/bom_add.html', ctx, request)
def add_management(request, obj_type, obj_ref, obj_revi, reader=False, level=None):
"""
View to add a manager (notified user or restricted reader).
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/management/add/`
or
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/management/add-reader/`
.. include:: views_params.txt
:param reader: True to add a restricted reader instead of a notified user
**Template:**
:file:`management_replace.html`
**Context:**
``RequestContext``
``replace_manager_form``
a form to select the new manager (a user)
``link_creation``
Set to True
``role``
role of the new user (:const:`.ROLE_NOTIFIED` or :const:`.ROLE_READER`)
``attach``
set to (*obj*, :samp:`"add_{role}"`)
"""
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
if level is None:
role = models.ROLE_READER if reader else models.ROLE_NOTIFIED
else:
role = level_to_sign_str(int(level))
if request.method == "POST":
add_management_form = forms.SelectUserForm(request.POST)
if add_management_form.is_valid():
if add_management_form.cleaned_data["type"] == "User":
user_obj = get_obj_from_form(add_management_form, request.user)
obj.set_role(user_obj.object, role)
message = _(u"Role %(add_role)s granted." % dict(add_role=role))
messages.info(request, message)
return HttpResponseRedirect("../../lifecycle/")
else:
add_management_form = forms.SelectUserForm()
ctx.update({'current_page':'lifecycle',
'replace_manager_form': add_management_form,
'link_creation': True,
'role' : role,
"attach" : (obj, "add_" + role)})
return r2r('management_replace.html', ctx, request)
def ajax_can_add_child(request, part_id):
part = get_obj_by_id(part_id, request.user)
data = {"can_add": False}
if part.is_part and request.GET:
form = forms.AddPartForm(request.GET)
if form.is_valid():
child = get_obj_from_form(form, request.user)
data["can_add"] = part.can_add_child(child)
return data
def add_management(request, obj_type, obj_ref, obj_revi, reader=False, level=None):
"""
View to add a manager (notified user or restricted reader).
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/management/add/`
or
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/management/add-reader/`
.. include:: views_params.txt
:param reader: True to add a restricted reader instead of a notified user
**Template:**
:file:`management_replace.html`
**Context:**
``RequestContext``
``replace_manager_form``
a form to select the new manager (a user)
``link_creation``
Set to True
``role``
role of the new user (:const:`.ROLE_NOTIFIED` or :const:`.ROLE_READER`)
``attach``
set to (*obj*, :samp:`"add_{role}"`)
"""
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
if level is None:
role = models.ROLE_READER if reader else models.ROLE_NOTIFIED
else:
role = level_to_sign_str(int(level))
if request.method == "POST":
add_management_form = forms.SelectUserForm(request.POST)
if add_management_form.is_valid():
if add_management_form.cleaned_data["type"] == "User":
user_obj = get_obj_from_form(add_management_form, request.user)
obj.set_role(user_obj.object, role)
message = _(u"Role %(add_role)s granted." % dict(add_role=role))
messages.info(request, message)
return HttpResponseRedirect("../../lifecycle/")
else:
add_management_form = forms.SelectUserForm()
ctx.update({'current_page':'lifecycle',
'replace_manager_form': add_management_form,
'link_creation': True,
'role' : role,
"attach" : (obj, "add_" + role)})
return r2r('management_replace.html', ctx, request)
def replace_management(request, obj_type, obj_ref, obj_revi, link_id):
"""
View to replace a manager (owner, signer, reader...) by another one.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/management/replace/{link_id}/`
.. include:: views_params.txt
:param link_id: id of the :class:`.PLMObjectUserLink` being replaced
**Template:**
:file:`management_replace.html`
**Context:**
``RequestContext``
``replace_manager_form``
a form to select the new manager (a user)
``link_creation``
Set to True
``role``
role of the link being replace
``attach``
set to (*obj*, :samp:`"add_{role}"`)
"""
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
link = obj.users.now().get(id=int(link_id))
if request.method == "POST":
replace_manager_form = forms.SelectUserForm(request.POST)
if replace_manager_form.is_valid():
if replace_manager_form.cleaned_data["type"] == "User":
user_obj = get_obj_from_form(replace_manager_form, request.user)
if link.role.startswith(models.ROLE_SIGN):
obj.replace_signer(link.user, user_obj.object, link.role)
else:
obj.set_role(user_obj.object, link.role)
if link.role == models.ROLE_NOTIFIED:
obj.remove_notified(link.user)
elif link.role == models.ROLE_READER:
obj.remove_reader(link.user)
return HttpResponseRedirect("../../../lifecycle/")
else:
replace_manager_form = forms.SelectUserForm()
ctx.update({'current_page':'lifecycle',
'replace_manager_form': replace_manager_form,
'link_creation': True,
'role' : link.role,
'attach' : (obj, "add_" + link.role)})
return r2r('management_replace.html', ctx, request)
def replace_management(request, obj_type, obj_ref, obj_revi, link_id):
"""
View to replace a manager (owner, signer, reader...) by another one.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/management/replace/{link_id}/`
.. include:: views_params.txt
:param link_id: id of the :class:`.PLMObjectUserLink` being replaced
**Template:**
:file:`management_replace.html`
**Context:**
``RequestContext``
``replace_manager_form``
a form to select the new manager (a user)
``link_creation``
Set to True
``role``
role of the link being replace
``attach``
set to (*obj*, :samp:`"add_{role}"`)
"""
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
link = obj.users.now().get(id=int(link_id))
if request.method == "POST":
replace_manager_form = forms.SelectUserForm(request.POST)
if replace_manager_form.is_valid():
if replace_manager_form.cleaned_data["type"] == "User":
user_obj = get_obj_from_form(replace_manager_form, request.user)
if link.role.startswith(models.ROLE_SIGN):
obj.replace_signer(link.user, user_obj.object, link.role)
else:
obj.set_role(user_obj.object, link.role)
if link.role == models.ROLE_NOTIFIED:
obj.remove_notified(link.user)
elif link.role == models.ROLE_READER:
obj.remove_reader(link.user)
return HttpResponseRedirect("../../../lifecycle/")
else:
replace_manager_form = forms.SelectUserForm()
ctx.update({'current_page':'lifecycle',
'replace_manager_form': replace_manager_form,
'link_creation': True,
'role' : link.role,
'attach' : (obj, "add_" + link.role)})
return r2r('management_replace.html', ctx, request)
def delegate(request, obj_ref, role, sign_level):
"""
Manage html page for delegations modification of the selected
:class:`~django.contrib.auth.models.User`.
It computes a context dictionary based on
:param request: :class:`django.http.QueryDict`
:param obj_type: :class:`~django.contrib.auth.models.User`
:type obj_ref: str
:param role: :attr:`.DelegationLink.role` if role is not "sign"
:type role: str
:param sign_level: used for :attr:`.DelegationLink.role` if role is "sign"
:type sign_level: str
:return: a :class:`django.http.HttpResponse`
"""
obj, ctx = get_generic_data(request, "User", obj_ref)
if request.method == "POST":
delegation_form = forms.SelectUserForm(request.POST)
if delegation_form.is_valid():
if delegation_form.cleaned_data["type"] == "User":
user_obj = get_obj_from_form(delegation_form, request.user)
if role == "notified" or role == "owner":
obj.delegate(user_obj.object, role)
return HttpResponseRedirect("../..")
elif role == "sign":
if sign_level == "all":
obj.delegate(user_obj.object, "sign*")
return HttpResponseRedirect("../../..")
elif sign_level.isdigit():
obj.delegate(user_obj.object,
level_to_sign_str(int(sign_level) - 1))
return HttpResponseRedirect("../../..")
else:
delegation_form = forms.SelectUserForm()
if role == 'sign':
if sign_level.isdigit():
role = _("signer level") + " " + str(sign_level)
else:
role = _("signer all levels")
elif role == "notified":
role = _("notified")
ctx.update({
'current_page': 'delegation',
'replace_manager_form': delegation_form,
'link_creation': True,
'attach': (obj, "delegate"),
'role': role
})
return r2r('management_replace.html', ctx, request)
def replace_child(request, obj_type, obj_ref, obj_revi, link_id):
"""
View to replace a child by another one.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/bom-child/replace/{link_id}/`
.. include:: views_params.txt
:param link_id: id of the :class:`.ParentChildLink` being replaced
**Template:**
:file:`parts/bom_replace.html`
**Context:**
``RequestContext``
``replace_child_form``
a form to select the replacement part
``link``
:class:`.ParentChildLink` being replaced
``link_creation``
Set to True
``attach``
set to (*obj*, "add_child")
"""
link_id = int(link_id)
obj, ctx = get_generic_data(request,
obj_type,
obj_ref,
obj_revi,
load_all=True)
link = models.ParentChildLink.objects.get(id=link_id)
if request.method == "POST":
form = forms.AddPartForm(request.POST)
if form.is_valid():
obj.replace_child(link, get_obj_from_form(form, request.user))
return HttpResponseRedirect("../..")
else:
form = forms.AddPartForm()
if ctx["results"]:
obj.precompute_can_add_child2()
ctx["replace_child_form"] = form
ctx["link"] = link
ctx["attach"] = (obj, "add_child")
ctx["link_creation"] = True
return r2r("parts/bom_replace.html", ctx, request)
def ajax_can_attach(request, plmobject_id):
plmobject = get_obj_by_id(plmobject_id, request.user)
data = {"can_attach" : False}
if isinstance(plmobject, PLMObjectController) and request.GET:
form = forms.PLMObjectForm(request.GET)
if form.is_valid():
attached = get_obj_from_form(form, request.user)
if attached.check_readable(False):
if hasattr(plmobject, "can_attach_document"):
data["can_attach"] = plmobject.can_attach_document(attached)
elif hasattr(plmobject, "can_attach_part"):
data["can_attach"] = plmobject.can_attach_part(attached)
return data
def add_alternate(request, obj_type, obj_ref, obj_revi):
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
if request.POST:
add_part_form = forms.AddPartForm(request.POST)
if add_part_form.is_valid():
part_obj = get_obj_from_form(add_part_form, request.user)
obj.add_alternate(part_obj)
return HttpResponseRedirect(obj.plmobject_url + "alternates/")
else:
add_part_form = forms.AddPartForm()
ctx.update({'link_creation': True,
'add_part_form': add_part_form,
'attach' : (obj, "add_alternate") })
return r2r('parts/alternates_add.html', ctx, request)
def delegate(request, obj_ref, role, sign_level):
"""
Manage html page for delegations modification of the selected
:class:`~django.contrib.auth.models.User`.
It computes a context dictionary based on
:param request: :class:`django.http.QueryDict`
:param obj_type: :class:`~django.contrib.auth.models.User`
:type obj_ref: str
:param role: :attr:`.DelegationLink.role` if role is not "sign"
:type role: str
:param sign_level: used for :attr:`.DelegationLink.role` if role is "sign"
:type sign_level: str
:return: a :class:`django.http.HttpResponse`
"""
obj, ctx = get_generic_data(request, "User", obj_ref)
if request.method == "POST":
delegation_form = forms.SelectUserForm(request.POST)
if delegation_form.is_valid():
if delegation_form.cleaned_data["type"] == "User":
user_obj = get_obj_from_form(delegation_form, request.user)
if role == "notified" or role == "owner":
obj.delegate(user_obj.object, role)
return HttpResponseRedirect("../..")
elif role == "sign":
if sign_level == "all":
obj.delegate(user_obj.object, "sign*")
return HttpResponseRedirect("../../..")
elif sign_level.isdigit():
obj.delegate(user_obj.object, level_to_sign_str(int(sign_level)-1))
return HttpResponseRedirect("../../..")
else:
delegation_form = forms.SelectUserForm()
if role == 'sign':
if sign_level.isdigit():
role = _("signer level") + " " + str(sign_level)
else:
role = _("signer all levels")
elif role == "notified":
role = _("notified")
ctx.update({'current_page':'delegation',
'replace_manager_form': delegation_form,
'link_creation': True,
'attach' : (obj, "delegate"),
'role': role})
return r2r('management_replace.html', ctx, request)
def add_alternate(request, obj_type, obj_ref, obj_revi):
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
if request.POST:
add_part_form = forms.AddPartForm(request.POST)
if add_part_form.is_valid():
part_obj = get_obj_from_form(add_part_form, request.user)
obj.add_alternate(part_obj)
return HttpResponseRedirect(obj.plmobject_url + "alternates/")
else:
add_part_form = forms.AddPartForm()
ctx.update({
'link_creation': True,
'add_part_form': add_part_form,
'attach': (obj, "add_alternate")
})
return r2r('parts/alternates_add.html', ctx, request)
def replace_child(request, obj_type, obj_ref, obj_revi, link_id):
"""
View to replace a child by another one.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/bom-child/replace/{link_id}/`
.. include:: views_params.txt
:param link_id: id of the :class:`.ParentChildLink` being replaced
**Template:**
:file:`parts/bom_replace.html`
**Context:**
``RequestContext``
``replace_child_form``
a form to select the replacement part
``link``
:class:`.ParentChildLink` being replaced
``link_creation``
Set to True
``attach``
set to (*obj*, "add_child")
"""
link_id = int(link_id)
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi,
load_all=True)
link = models.ParentChildLink.objects.get(id=link_id)
if request.method == "POST":
form = forms.AddPartForm(request.POST)
if form.is_valid():
obj.replace_child(link, get_obj_from_form(form, request.user))
return HttpResponseRedirect("../..")
else:
form = forms.AddPartForm()
if ctx["results"]:
obj.precompute_can_add_child2()
ctx["replace_child_form"] = form
ctx["link"] = link
ctx["attach"] = (obj, "add_child")
ctx["link_creation"] = True
return r2r("parts/bom_replace.html", ctx, request)
def add_doc_cad(request, obj_type, obj_ref, obj_revi):
"""
View to attach a document to a part.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/doc-cad/add/`
.. include:: views_params.txt
**Template:**
:file:`parts/doccad_add.html`
**Context:**
``RequestContext``
``add_doc_cad_form``
a form to attach a document (:class:`.AddDocCadForm`)
``link_creation``
Set to True
``attach``
set to (*obj*, "attach_doc")
"""
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
if request.POST:
add_doc_cad_form = forms.AddDocCadForm(request.POST)
if add_doc_cad_form.is_valid():
doc_cad_obj = get_obj_from_form(add_doc_cad_form, request.user)
obj.attach_to_document(doc_cad_obj)
return HttpResponseRedirect(obj.plmobject_url + "doc-cad/")
else:
add_doc_cad_form = forms.AddDocCadForm()
ctx.update({
'link_creation': True,
'add_doc_cad_form': add_doc_cad_form,
'attach': (obj, "attach_doc")
})
return r2r('parts/doccad_add.html', ctx, request)
def add_part(request, obj_type, obj_ref, obj_revi):
"""
View to attach a part to a document.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/parts/add/`
.. include:: views_params.txt
**Template:**
:file:`documents/parts_add.html`
**Context:**
``RequestContext``
``add_part_form``
a form to attach a part (:class:`.AddPartForm`)
``link_creation``
Set to True
``attach``
set to (*obj*, "attach_part")
"""
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
if request.POST:
add_part_form = forms.AddPartForm(request.POST)
if add_part_form.is_valid():
part_obj = get_obj_from_form(add_part_form, request.user)
obj.attach_to_part(part_obj)
messages.info(request, _(u"The part has been successfully attached to the document."))
return HttpResponseRedirect(obj.plmobject_url + "parts/")
else:
add_part_form = forms.AddPartForm()
ctx.update({'link_creation': True,
'add_part_form': add_part_form,
'attach' : (obj, "attach_part") })
return r2r('documents/parts_add.html', ctx, request)
def attach_plmobject(request, obj_ref):
obj, ctx = bv.get_generic_data(request, "ECR", obj_ref, "-", search=True)
if request.method == "POST":
form = PLMObjectForm(request.POST)
if form.is_valid():
plmobject = bv.get_obj_from_form(form, request.user)
obj.attach_object(plmobject.object)
return HttpResponseRedirect("..")
else:
form = PLMObjectForm()
if obj.is_editable and ctx["is_owner"]:
plmobjects = obj.plmobjects.now().values_list("plmobject", flat=True)
can_attach = lambda x: x.id not in plmobjects
else:
can_attach = lambda x: False
ctx.update({
"current_page": "part-doc-cads",
"attach_form": form,
"link_creation": True,
"attach": (obj, can_attach),
})
return r2r("ecrs/plmobjects_add.html", ctx, request)
def add_doc_cad(request, obj_type, obj_ref, obj_revi):
"""
View to attach a document to a part.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/doc-cad/add/`
.. include:: views_params.txt
**Template:**
:file:`parts/doccad_add.html`
**Context:**
``RequestContext``
``add_doc_cad_form``
a form to attach a document (:class:`.AddDocCadForm`)
``link_creation``
Set to True
``attach``
set to (*obj*, "attach_doc")
"""
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
if request.POST:
add_doc_cad_form = forms.AddDocCadForm(request.POST)
if add_doc_cad_form.is_valid():
doc_cad_obj = get_obj_from_form(add_doc_cad_form, request.user)
obj.attach_to_document(doc_cad_obj)
return HttpResponseRedirect(obj.plmobject_url + "doc-cad/")
else:
add_doc_cad_form = forms.AddDocCadForm()
ctx.update({'link_creation': True,
'add_doc_cad_form': add_doc_cad_form,
'attach' : (obj, "attach_doc")})
return r2r('parts/doccad_add.html', ctx, request)
def add_part(request, obj_type, obj_ref, obj_revi):
"""
View to attach a part to a document.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/parts/add/`
.. include:: views_params.txt
**Template:**
:file:`documents/parts_add.html`
**Context:**
``RequestContext``
``add_part_form``
a form to attach a part (:class:`.AddPartForm`)
``link_creation``
Set to True
``attach``
set to (*obj*, "attach_part")
"""
obj, ctx = get_generic_data(request, obj_type, obj_ref, obj_revi)
if request.POST:
add_part_form = forms.AddPartForm(request.POST)
if add_part_form.is_valid():
part_obj = get_obj_from_form(add_part_form, request.user)
obj.attach_to_part(part_obj)
messages.info(request, _(u"The part has been successfully attached to the document."))
return HttpResponseRedirect(obj.plmobject_url + "parts/")
else:
add_part_form = forms.AddPartForm()
ctx.update({"link_creation": True, "add_part_form": add_part_form, "attach": (obj, "attach_part")})
return r2r("documents/parts_add.html", ctx, request)
def add_child(request, obj_type, obj_ref, obj_revi):
"""
View to add a child to a part.
:url: :samp:`/object/{obj_type}/{obj_ref}/{obj_revi}/bom-child/add/`
.. include:: views_params.txt
**Template:**
:file:`parts/bom_add.html`
**Context:**
``RequestContext``
``add_child_form``
a form to add a child (:class:`.AddChildForm`)
``link``
:class:`.ParentChildLink` being replaced
``link_creation``
Set to True
``attach``
set to (*obj*, "add_child")
"""
obj, ctx = get_generic_data(request,
obj_type,
obj_ref,
obj_revi,
load_all=True)
if request.method == "POST" and request.POST:
add_child_form = forms.AddChildForm(obj.object, request.POST)
if add_child_form.is_valid():
child_obj = get_obj_from_form(add_child_form, request.user)
obj.add_child(child_obj, add_child_form.cleaned_data["quantity"],
add_child_form.cleaned_data["order"],
add_child_form.cleaned_data["unit"],
**add_child_form.extensions)
return HttpResponseRedirect(obj.plmobject_url + "BOM-child/")
else:
if "type" in request.GET and request.GET[
"type"] in models.get_all_parts():
# use GET params only if they seems valid
initial = request.GET
else:
initial = None
add_child_form = forms.AddChildForm(obj.object, initial=initial)
ctx['current_page'] = 'BOM-child'
if ctx["results"]:
obj.precompute_can_add_child2()
orders = list(
obj.parentchildlink_parent.values_list('order', flat=True))
initial_order = max(orders) + 10 if orders else 10
ctx['order'] = initial_order
ctx.update({
'link_creation': True,
'add_child_form': add_child_form,
'attach': (obj, "add_child")
})
return r2r('parts/bom_add.html', ctx, request)