views: preselect pxe boot mode in add client

preselect 'pxe' (if available) at adding a new client.

use a dedicated template for adding a client and remove irrelevant
partition table; client has yet to set its partition, so everytime, the
table would load empty.

ogcp/templates/actions/client_add.html

@@ -0,0 +1,19 @@
+{% extends parent %}
+{% import "bootstrap/wtf.html" as wtf %}
+
+{% set sidebar_state = 'disabled' %}
+{% set btn_back = true %}
+
+{% block nav_client %} active{% endblock %}
+{% block nav_client_details %} active{% endblock %}
+{% block nav_client_add %}active{% endblock %}
+{% block content %}
+
+<h1 class="m-5">{{_('Add client')}}</h1>
+
+{{ wtf.quick_form(form,
+                  method='post',
+                  button_map={'submit': 'primary'},
+                  extra_classes="mx-5") }}
+
+{% endblock %}

ogcp/views.py

@@ -1312,7 +1312,9 @@ def action_client_add():
         if r.status_code != requests.codes.ok:
             return ogserver_error('scopes')
 
-        available_modes = [(mode, mode) for mode in r.json()['modes']]
+        available_modes = [(mode, mode) for mode in r.json()['modes'] if mode == 'pxe']
+        available_modes.extend([(mode, mode) for mode in r.json()['modes'] if mode != 'pxe'])
+
         form.boot.choices = list(available_modes)
         form.mac.render_kw = {'placeholder': 'aabbccddeeaa'}
 
@@ -1344,7 +1346,7 @@ def action_client_add():
 
         form.submit.render_kw = {"formaction": url_for('action_client_add')}
         scopes, clients = get_scopes()
-        return render_template('actions/client_details.html', form=form,
+        return render_template('actions/client_add.html', form=form,
                                parent="scopes.html", scopes=scopes)
 
 PLACEHOLDER_TEXT = '''host example1 { hardware ethernet 94:c6:91:a6:25:1a; fixed-address 10.141.10.100; }