Add Quick-Booking Workflow

Users can now quickly provision a single-host pod without having to
configure unecessary networking. This is intended to be analogous to the
workflow used during LaaS 1.0, and to speed up the process of creating a
booking for users who do not need more than a single host (for virtual
deployments)

Change-Id: Ia19cea9a42bbb1df57aad05af8f8ea821395664d
Signed-off-by: Sawyer Bergeron <sawyerbergeron@gmail.com>

1 files changed, 106 insertions, 0 deletions

diff --git a/src/booking/forms.py b/src/booking/forms.py
new file mode 100644
index 0000000..cb76383
--- /dev/null
+++ b/src/booking/forms.py
@@ -0,0 +1,106 @@
+##############################################################################
+# Copyright (c) 2018 Sawyer Bergeron, Parker Berberian, and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+import django.forms as forms
+from django.forms.widgets import NumberInput
+from django.db.models import Q
+
+from workflow.forms import (
+    SearchableSelectMultipleWidget,
+    MultipleSelectFilterField,
+    MultipleSelectFilterWidget,
+    FormUtils)
+from account.models import UserProfile
+from resource_inventory.models import Image, Installer, Scenario
+
+
+class QuickBookingForm(forms.Form):
+    purpose = forms.CharField(max_length=1000)
+    project = forms.CharField(max_length=400)
+    image = forms.ModelChoiceField(queryset=Image.objects.all())
+    hostname = forms.CharField(max_length=400)
+
+    installer = forms.ModelChoiceField(queryset=Installer.objects.all(), required=False)
+    scenario = forms.ModelChoiceField(queryset=Scenario.objects.all(), required=False)
+
+    def __init__(self, data=None, *args, user=None, **kwargs):
+        chosen_users = []
+        if "default_user" in kwargs:
+            default_user = kwargs.pop("default_user")
+        else:
+            default_user = "you"
+        self.default_user = default_user
+        if "chosen_users" in kwargs:
+            chosen_users = kwargs.pop("chosen_users")
+        elif data and "users" in data:
+            chosen_users = data.getlist("users")
+
+        if user:
+            self.image = forms.ModelChoiceField(queryset=Image.objects.filter(
+                Q(public=True) | Q(owner=user)), required=False)
+        else:
+            self.image = forms.ModelChoiceField(queryset=Image.objects.all(), required=False)
+
+        super(QuickBookingForm, self).__init__(data=data, **kwargs)
+
+        self.fields['users'] = forms.CharField(
+            widget=SearchableSelectMultipleWidget(
+                attrs=self.build_search_widget_attrs(chosen_users, default_user=default_user)
+            ),
+            required=False
+        )
+        attrs = FormUtils.getLabData(0)
+        attrs['selection_data'] = 'false'
+        self.fields['filter_field'] = MultipleSelectFilterField(widget=MultipleSelectFilterWidget(attrs=attrs))
+        self.fields['length'] = forms.IntegerField(
+            widget=NumberInput(
+                attrs={
+                    "type": "range",
+                    'min': "1",
+                    "max": "21",
+                    "value": "1"
+                }
+            )
+        )
+
+    def build_user_list(self):
+        """
+        returns a mapping of UserProfile ids to displayable objects expected by
+        searchable multiple select widget
+        """
+        try:
+            users = {}
+            d_qset = UserProfile.objects.select_related('user').all().exclude(user__username=self.default_user)
+            for userprofile in d_qset:
+                user = {
+                    'id': userprofile.user.id,
+                    'expanded_name': userprofile.full_name,
+                    'small_name': userprofile.user.username,
+                    'string': userprofile.email_addr
+                }
+
+                users[userprofile.user.id] = user
+
+            return users
+        except Exception:
+            pass
+
+    def build_search_widget_attrs(self, chosen_users, default_user="you"):
+
+        attrs = {
+            'set': self.build_user_list(),
+            'show_from_noentry': "false",
+            'show_x_results': 10,
+            'scrollable': "false",
+            'selectable_limit': -1,
+            'name': "users",
+            'placeholder': "username",
+            'initial': chosen_users,
+            'edit': False
+        }
+        return attrs