From ec669dd67085d0fb327c805932717bd5c5d6657e Mon Sep 17 00:00:00 2001
From: Oliver Walters <oliver.henry.walters@gmail.com>
Date: Mon, 10 Jun 2019 22:14:23 +1000
Subject: [PATCH] Ability to 'issue' a purchase order

---
 InvenTree/order/forms.py                      |  6 ++++-
 InvenTree/order/models.py                     | 16 ++++++++++++
 .../order/templates/order/order_issue.html    |  8 +++++-
 .../order/purchase_order_detail.html          |  9 ++++++-
 InvenTree/order/views.py                      | 25 +++++++++++++++++++
 5 files changed, 61 insertions(+), 3 deletions(-)

diff --git a/InvenTree/order/forms.py b/InvenTree/order/forms.py
index 259b64f087..08e9a6f740 100644
--- a/InvenTree/order/forms.py
+++ b/InvenTree/order/forms.py
@@ -5,6 +5,8 @@ Django Forms for interacting with Order objects
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+from django import forms
+
 from InvenTree.forms import HelperForm
 
 from .models import PurchaseOrder, PurchaseOrderLineItem
@@ -12,10 +14,12 @@ from .models import PurchaseOrder, PurchaseOrderLineItem
 
 class IssuePurchaseOrderForm(HelperForm):
 
+    confirm = forms.BooleanField(required=False, help_text='Place order')
+
     class Meta:
         model = PurchaseOrder
         fields = [
-            'status',
+            'confirm',
         ]
 
 
diff --git a/InvenTree/order/models.py b/InvenTree/order/models.py
index ed102e928a..e71e50f743 100644
--- a/InvenTree/order/models.py
+++ b/InvenTree/order/models.py
@@ -1,9 +1,17 @@
+"""
+Order model definitions
+"""
+
+# -*- coding: utf-8 -*-
+
 from django.db import models
 from django.core.validators import MinValueValidator
 from django.contrib.auth.models import User
 
 from django.utils.translation import ugettext as _
 
+from datetime import datetime
+
 from company.models import Company, SupplierPart
 
 from InvenTree.status_codes import OrderStatus
@@ -62,6 +70,14 @@ class Order(models.Model):
 
     notes = models.TextField(blank=True, help_text=_('Order notes'))
 
+    def place_order(self):
+        """ Marks the order as PLACED. Order must be currently PENDING. """
+
+        if self.status == OrderStatus.PENDING:
+            self.status = OrderStatus.PLACED
+            self.issue_date = datetime.now().date()
+            self.save()
+
 
 class PurchaseOrder(Order):
     """ A PurchaseOrder represents goods shipped inwards from an external supplier.
diff --git a/InvenTree/order/templates/order/order_issue.html b/InvenTree/order/templates/order/order_issue.html
index c7de8c74b2..ad80fc5a0d 100644
--- a/InvenTree/order/templates/order/order_issue.html
+++ b/InvenTree/order/templates/order/order_issue.html
@@ -1 +1,7 @@
-{% extends "modal_form.html" %}
\ No newline at end of file
+{% extends "modal_form.html" %}
+
+{% block pre_form_content %}
+
+After placing this purchase order, line items will no longer be editable.
+
+{% endblock %}
\ No newline at end of file
diff --git a/InvenTree/order/templates/order/purchase_order_detail.html b/InvenTree/order/templates/order/purchase_order_detail.html
index dbabb2f940..5fb9a76ac9 100644
--- a/InvenTree/order/templates/order/purchase_order_detail.html
+++ b/InvenTree/order/templates/order/purchase_order_detail.html
@@ -58,7 +58,7 @@ InvenTree | {{ order }}
 <div class='btn-group' style='float: right;'>
     <button type='button' class='btn btn-primary' id='edit-order'>Edit Order</button>
     {% if order.status == OrderStatus.PENDING %}
-    <button type='button' class='btn btn-primary' id='issue-order'>Issue Order</button>
+    <button type='button' class='btn btn-primary' id='place-order'>Place Order</button>
     {% endif %}
 </div>
 
@@ -103,6 +103,13 @@ InvenTree | {{ order }}
 
 {% block js_ready %}
 
+$("#place-order").click(function() {
+    launchModalForm("{% url 'purchase-order-issue' order.id %}",
+    {
+        reload: true,
+    });
+});
+
 $("#edit-order").click(function() {
     launchModalForm("{% url 'purchase-order-edit' order.id %}",
         {
diff --git a/InvenTree/order/views.py b/InvenTree/order/views.py
index c4bcc05f69..5e85e0ae82 100644
--- a/InvenTree/order/views.py
+++ b/InvenTree/order/views.py
@@ -15,6 +15,7 @@ from company.models import SupplierPart
 from . import forms as order_forms
 
 from InvenTree.views import AjaxCreateView, AjaxUpdateView
+from InvenTree.helpers import str2bool
 
 from InvenTree.status_codes import OrderStatus
 
@@ -100,6 +101,30 @@ class PurchaseOrderIssue(AjaxUpdateView):
     ajax_template_name = "order/order_issue.html"
     form_class = order_forms.IssuePurchaseOrderForm
 
+    def post(self, request, *args, **kwargs):
+        """ Mark the purchase order as 'PLACED' """
+
+        order = self.get_object()
+        form = self.get_form()
+
+        confirm = str2bool(request.POST.get('confirm', False))
+
+        valid = False
+
+        if not confirm:
+            form.errors['confirm'] = [_('Confirm order placement')]
+        else:
+            valid = True
+
+        data = {
+            'form_valid': valid,
+        }
+
+        if valid:
+            order.issue_order()
+
+        return self.renderJsonResponse(request, form, data)
+
 
 class POLineItemCreate(AjaxCreateView):
     """ AJAX view for creating a new PurchaseOrderLineItem object