def get_widgets(layout, placeholder, user=None, workspace=None, position=None, occupied_cells=[]):
"""
Gets widgets. In case if in restricted mode (``RESTRICT_PLUGIN_ACCESS`` is set to True),
user argument should be provided. Based on it, the list of plugins is returned. Restrictions are
bypassed in case if ``RESTRICT_PLUGIN_ACCESS`` is set to False or user given is a superuser.
Placeholders are validated already. We don't need to have validation here.
:param dash.base.BaseDashLayout layout: Layout object.
:param string placeholder_uid: Placeholder uid.
:param django.contrib.auth.models.User user:
:param string workspace: Workspace slug.
:param int position: Plugin position.
:param list occupied_cells: List of already occupied cells.
:return list:
"""
# We should get the layout, see loop through its' plugins and see which of those do have rendererrs. Then
# we get all the plugins (based on whether they are restricted or not - get the list) and then filter
# out those that do not have renderers.
ensure_autodiscover()
registered_widgets = {}
plugin_widget_uids = plugin_widget_registry._registry.keys()
if not RESTRICT_PLUGIN_ACCESS or getattr(user, 'is_superuser', False):
for uid, plugin in plugin_registry._registry.items():
# We should make sure that there are widgets available for the placeholder.
plugin_widget_uid = PluginWidgetRegistry.namify(layout.uid, placeholder.uid, uid)
# Get cells occupied by plugin widget.
widget_occupied_cells = get_occupied_cells(layout, placeholder, uid, position, check_boundaries=True)
if plugin_widget_uid in plugin_widget_uids and widget_occupied_cells is not False and \
not lists_overlap(widget_occupied_cells, occupied_cells):
plugin_widget = plugin_widget_registry.get(plugin_widget_uid)
kwargs = {'placeholder_uid': placeholder.uid, 'plugin_uid': uid}
if workspace:
kwargs.update({'workspace': workspace})
if position:
kwargs.update({'position': position})
plugin_group = force_text(plugin.group)
if not plugin_group in registered_widgets:
registered_widgets[plugin_group] = []
if PY3:
widget_name = force_text(plugin.name, encoding='utf-8')
else:
widget_name = force_text(plugin.name, encoding='utf-8').encode('utf-8')
registered_widgets[plugin_group].append((
uid,
'{0} ({1}x{2})'.format(widget_name, plugin_widget.cols, plugin_widget.rows),
reverse('dash.add_dashboard_entry', kwargs=kwargs)
))
else:
allowed_plugin_uids = get_allowed_plugin_uids(user)
for uid, plugin in plugin_registry._registry.items():
# We should make sure that there are widgets available for the placeholder and user has access to the
# widget desired.
plugin_widget_uid = PluginWidgetRegistry.namify(layout.uid, placeholder.uid, uid)
# Get cells occupied by plugin widget.
widget_occupied_cells = get_occupied_cells(layout, placeholder, uid, position, check_boundaries=True)
if uid in allowed_plugin_uids and plugin_widget_uid in plugin_widget_uids and \
widget_occupied_cells is not False and not lists_overlap(widget_occupied_cells, occupied_cells):
plugin_widget = plugin_widget_registry.get(plugin_widget_uid)
kwargs = {'placeholder_uid': placeholder.uid, 'plugin_uid': uid}
if workspace:
kwargs.update({'workspace': workspace})
if position:
kwargs.update({'position': position})
plugin_group = force_text(plugin.group)
if not plugin_group in registered_widgets:
registered_widgets[plugin_group] = []
registered_widgets[plugin_group].append(
(
uid,
'{0} ({1}x{2})'.format(force_text(plugin.name), plugin_widget.cols, plugin_widget.rows),
reverse('dash.add_dashboard_entry', kwargs=kwargs)
)
)
return registered_widgets
def get_widgets(layout, placeholder, user=None, workspace=None, \
position=None, occupied_cells=[], sort_items=True):
"""
Gets widgets. In case if in restricted mode (``RESTRICT_PLUGIN_ACCESS`` is
set to True), user argument should be provided. Based on it, the list of
plugins is returned. Restrictions are bypassed in case if
``RESTRICT_PLUGIN_ACCESS`` is set to False or user given is a superuser.
Placeholders are validated already. We don't need to have validation here.
:param dash.base.BaseDashLayout layout: Layout object.
:param string placeholder_uid: Placeholder uid.
:param django.contrib.auth.models.User user:
:param string workspace: Workspace slug.
:param int position: Plugin position.
:param list occupied_cells: List of already occupied cells.
:param bool sort_items: If set to True, returned items are sorted.
:return list:
"""
# We should get the layout, see loop through its' plugins and see which of
# those do have rendererrs. Then we get all the plugins (based on whether
# they are restricted or not - get the list) and then filter out those
# that do not have renderers.
ensure_autodiscover()
registered_widgets = {}
plugin_widget_uids = plugin_widget_registry._registry.keys()
if not RESTRICT_PLUGIN_ACCESS or getattr(user, 'is_superuser', False):
for uid, plugin in plugin_registry._registry.items():
# We should make sure that there are widgets available for the
# placeholder.
plugin_widget_uid = PluginWidgetRegistry.namify(
layout.uid, placeholder.uid, uid
)
# Get cells occupied by plugin widget.
widget_occupied_cells = get_occupied_cells(
layout, placeholder, uid, position, check_boundaries=True
)
if plugin_widget_uid in plugin_widget_uids \
and widget_occupied_cells is not False \
and not lists_overlap(widget_occupied_cells, occupied_cells):
plugin_widget = plugin_widget_registry.get(plugin_widget_uid)
kwargs = {'placeholder_uid': placeholder.uid, 'plugin_uid': uid}
if workspace:
kwargs.update({'workspace': workspace})
if position:
kwargs.update({'position': position})
plugin_group = safe_text(plugin.group)
if plugin_group not in registered_widgets:
registered_widgets[plugin_group] = []
widget_name = safe_text(plugin.name)
registered_widgets[plugin_group].append(
(
uid,
'{0} ({1}x{2})'.format(widget_name, \
plugin_widget.cols, \
plugin_widget.rows),
reverse('dash.add_dashboard_entry', kwargs=kwargs)
)
)
elif plugin_widget_uid in plugin_widget_uids and widget_occupied_cells is not False \
and lists_overlap(widget_occupied_cells, occupied_cells):
workspace_id = None
if workspace:
workspace_id = DashboardWorkspace.objects.get(name=workspace).pk
current_widget = DashboardEntry.objects.filter(position=int(position),
layout_uid=layout.uid, workspace_id=workspace_id,)[0]
pattern = re.compile(r'\d+x\d+')
dimensions = pattern.search(str(current_widget.plugin_uid))
dimensions = (dimensions.group()).split('x')
plugin_widget = plugin_widget_registry.get(plugin_widget_uid)
if int(plugin_widget.cols) == int(dimensions[0]) and int(plugin_widget.rows) == int(dimensions[1]):
kwargs = {'placeholder_uid': placeholder.uid, 'plugin_uid': uid}
if workspace:
kwargs.update({'workspace': workspace})
if position:
kwargs.update({'position': position})
plugin_group = safe_text(plugin.group)
if plugin_group not in registered_widgets:
registered_widgets[plugin_group] = []
widget_name = safe_text(plugin.name)
registered_widgets[plugin_group].append(
(
uid,
'{0} ({1}x{2})'.format(widget_name, \
plugin_widget.cols, \
plugin_widget.rows),
reverse('dash.add_dashboard_entry', kwargs=kwargs)
)
)
else:
allowed_plugin_uids = get_allowed_plugin_uids(user)
for uid, plugin in plugin_registry._registry.items():
# We should make sure that there are widgets available for the
# placeholder and user has access to the widget desired.
plugin_widget_uid = PluginWidgetRegistry.namify(
layout.uid, placeholder.uid, uid
)
# Get cells occupied by plugin widget.
widget_occupied_cells = get_occupied_cells(
layout, placeholder, uid, position, check_boundaries=True
)
if uid in allowed_plugin_uids \
and plugin_widget_uid in plugin_widget_uids \
and widget_occupied_cells is not False \
and not lists_overlap(widget_occupied_cells, occupied_cells):
plugin_widget = plugin_widget_registry.get(plugin_widget_uid)
kwargs = {'placeholder_uid': placeholder.uid, 'plugin_uid': uid}
if workspace:
kwargs.update({'workspace': workspace})
if position:
kwargs.update({'position': position})
plugin_group = safe_text(plugin.group)
if not plugin_group in registered_widgets:
registered_widgets[plugin_group] = []
registered_widgets[plugin_group].append(
(
uid,
'{0} ({1}x{2})'.format(safe_text(plugin.name), \
plugin_widget.cols, \
plugin_widget.rows),
reverse('dash.add_dashboard_entry', kwargs=kwargs)
)
)
if sort_items:
for key, prop in registered_widgets.items():
prop.sort()
return registered_widgets
def get_widgets(layout, placeholder, user=None, workspace=None, \
position=None, occupied_cells=[], sort_items=True):
"""
Gets widgets. In case if in restricted mode (``RESTRICT_PLUGIN_ACCESS`` is
set to True), user argument should be provided. Based on it, the list of
plugins is returned. Restrictions are bypassed in case if
``RESTRICT_PLUGIN_ACCESS`` is set to False or user given is a superuser.
Placeholders are validated already. We don't need to have validation here.
:param dash.base.BaseDashLayout layout: Layout object.
:param string placeholder_uid: Placeholder uid.
:param django.contrib.auth.models.User user:
:param string workspace: Workspace slug.
:param int position: Plugin position.
:param list occupied_cells: List of already occupied cells.
:param bool sort_items: If set to True, returned items are sorted.
:return list:
"""
# We should get the layout, see loop through its' plugins and see which of
# those do have rendererrs. Then we get all the plugins (based on whether
# they are restricted or not - get the list) and then filter out those
# that do not have renderers.
ensure_autodiscover()
registered_widgets = {}
plugin_widget_uids = plugin_widget_registry._registry.keys()
if not RESTRICT_PLUGIN_ACCESS or getattr(user, 'is_superuser', False):
for uid, plugin in plugin_registry._registry.items():
# We should make sure that there are widgets available for the
# placeholder.
plugin_widget_uid = PluginWidgetRegistry.namify(
layout.uid, placeholder.uid, uid)
# Get cells occupied by plugin widget.
widget_occupied_cells = get_occupied_cells(layout,
placeholder,
uid,
position,
check_boundaries=True)
if plugin_widget_uid in plugin_widget_uids \
and widget_occupied_cells is not False \
and not lists_overlap(widget_occupied_cells, occupied_cells):
plugin_widget = plugin_widget_registry.get(plugin_widget_uid)
kwargs = {
'placeholder_uid': placeholder.uid,
'plugin_uid': uid
}
if workspace:
kwargs.update({'workspace': workspace})
if position:
kwargs.update({'position': position})
plugin_group = safe_text(plugin.group)
if not plugin_group in registered_widgets:
registered_widgets[plugin_group] = []
widget_name = safe_text(plugin.name)
registered_widgets[plugin_group].append(
(
uid,
'{0} ({1}x{2})'.format(widget_name, \
plugin_widget.cols, \
plugin_widget.rows),
reverse('dash.add_dashboard_entry', kwargs=kwargs)
)
)
else:
allowed_plugin_uids = get_allowed_plugin_uids(user)
for uid, plugin in plugin_registry._registry.items():
# We should make sure that there are widgets available for the
# placeholder and user has access to the widget desired.
plugin_widget_uid = PluginWidgetRegistry.namify(
layout.uid, placeholder.uid, uid)
# Get cells occupied by plugin widget.
widget_occupied_cells = get_occupied_cells(layout,
placeholder,
uid,
position,
check_boundaries=True)
if uid in allowed_plugin_uids \
and plugin_widget_uid in plugin_widget_uids \
and widget_occupied_cells is not False \
and not lists_overlap(widget_occupied_cells, occupied_cells):
plugin_widget = plugin_widget_registry.get(plugin_widget_uid)
kwargs = {
'placeholder_uid': placeholder.uid,
'plugin_uid': uid
}
if workspace:
kwargs.update({'workspace': workspace})
if position:
kwargs.update({'position': position})
plugin_group = safe_text(plugin.group)
if not plugin_group in registered_widgets:
registered_widgets[plugin_group] = []
registered_widgets[plugin_group].append(
(
uid,
'{0} ({1}x{2})'.format(safe_text(plugin.name), \
plugin_widget.cols, \
plugin_widget.rows),
reverse('dash.add_dashboard_entry', kwargs=kwargs)
)
)
if sort_items:
for key, prop in registered_widgets.items():
prop.sort()
return registered_widgets
def paste_entry_from_clipboard(request, layout, placeholder_uid, position, \
workspace=None, entries=[], check_only=False, \
clear_clipboard=True):
"""
Pastes entry from clipboard to the given placeholder of a workspace
selected.
:param django.http.HttpRequest request:
:param str layout_uid: Placeholder UID.
:param str placeholder_uid: Placeholder UID.
:param int position: Position.
:param mixed workspace: Either str or ``dash.models.DashboardWorkspace``
instance. If str is given, a database hit occurs in order to obtain
the ``dash.models.DashboardWorkspace`` instance. Thus, if you have the
workspace instance already, provide it as is, in order to minify
database hits.
:param iterable entries: If given, entries are not fetched but the
existing iterable is used. Each item in the iterable should be an
instance of ``dash.models.DashboardEntry``.
:param bool check_only: If set to True, it's only checked if it's possible
to paste from clipboard (the ``dashboard_entry.save()`` part is
skipped, which means that the entry is not saved in the database).
:return tuple (str, bool): (Plugin name, boolean True) tuple on success
and (error message, boolean False) on failure.
"""
clipboard_plugin_data = get_plugin_data_from_clipboard(request, layout.uid)
if not clipboard_plugin_data:
return (_("Clipboard is empty!"), False)
if not validate_placeholder_uid(layout, placeholder_uid):
return (_("Invalid placeholder `{0}`.").format(placeholder_uid), False)
user_plugin_uids = get_user_plugin_uids(request.user)
if isinstance(workspace, DashboardWorkspace):
workspace_obj = workspace
else:
if workspace:
try:
workspace_obj = DashboardWorkspace._default_manager \
.get(slug=workspace)
except ObjectDoesNotExist as e:
workspace_obj = None
else:
workspace_obj = None
dashboard_entry = DashboardEntry(
user=request.user,
workspace=workspace_obj,
layout_uid=layout.uid,
placeholder_uid=placeholder_uid,
plugin_uid=clipboard_plugin_data['plugin_uid'],
plugin_data=clipboard_plugin_data['plugin_data'],
position=position)
# We should now check if we have a space for pasting the plugin. For that
# we should get the plugin and see if there's a space available for
# the (workspace, placeholder, user) triple given.
# Get the plugin.
plugin = dashboard_entry.get_plugin()
if not plugin.uid in user_plugin_uids:
return (_("You're not allowed to "
"use the {0} plugin.".format(safe_text(plugin.name))), False)
# Getting occupied cells
placeholder = layout.get_placeholder(placeholder_uid)
occupied_cells = build_cells_matrix(request.user,
layout,
placeholder,
workspace=workspace)
# Get cells occupied by plugin widget.
widget_occupied_cells = get_occupied_cells(layout,
placeholder,
plugin.uid,
position,
check_boundaries=True)
if widget_occupied_cells is not False \
and not lists_overlap(widget_occupied_cells, occupied_cells):
try:
if not check_only:
# Save data
dashboard_entry.save()
# Clear the clipboard
clear_clipboard_data(request, layout.uid)
return (plugin.uid, True)
except Exception as e:
return (str(e), False)
def add_dashboard_entry(
request,
placeholder_uid,
plugin_uid,
workspace=None,
position=None,
template_name='dash/add_dashboard_entry.html',
template_name_ajax='dash/add_dashboard_entry_ajax.html'):
"""
Add dashboard entry.
:param django.http.HttpRequest request:
:param string placeholder_uid: Placeholder UID.
:param string plugin_uid: Plugin UID.
:param string workspace: Workspace slug.
:param int position: If given, provided as position for the
plugin (conflict resolution should take place).
:param string template_name:
:param string template_name_ajax: Template used for AJAX requests.
:return django.http.HttpResponse:
"""
# Getting dashboard settings for the user. Then get users' layout.
dashboard_settings = get_or_create_dashboard_settings(request.user)
if workspace:
workspace_slug = slugify_workspace(workspace)
filters = {
'slug': workspace_slug,
'user': request.user,
}
if not dashboard_settings.allow_different_layouts:
filters.update({
'layout_uid': dashboard_settings.layout_uid,
})
try:
workspace = DashboardWorkspace._default_manager.get(**filters)
except ObjectDoesNotExist as e:
if dashboard_settings.allow_different_layouts:
message = _('The workspace with slug "{0}" was not foundi.'
).format(workspace_slug)
else:
message = __(
'The workspace with slug "{0}" does not belong to '
'layout "{1}".').format(workspace_slug, layout.name)
messages.info(request, message)
return redirect('dash.edit_dashboard')
if dashboard_settings.allow_different_layouts and workspace:
layout_uid = workspace.layout_uid
else:
layout_uid = dashboard_settings.layout_uid
layout = get_layout(layout_uid=layout_uid, as_instance=True)
if not validate_placeholder_uid(layout, placeholder_uid):
raise Http404(ugettext("Invalid placeholder: {0}").format(placeholder))
if not validate_plugin_uid(plugin_uid):
raise Http404(ugettext("Invalid plugin name: {0}").format(plugin_uid))
placeholder = layout.get_placeholder(placeholder_uid)
# Cell that would be occupied by the plugin upon addition.
widget_occupied_cells = get_occupied_cells(layout,
placeholder,
plugin_uid,
position,
check_boundaries=True,
fail_silently=True)
# Cells currently occupued in the workspace given.
occupied_cells = build_cells_matrix(request.user, layout, placeholder,
workspace)
# Checking if it's still possible to insert a widget.
if widget_occupied_cells is False \
or lists_overlap(widget_occupied_cells, occupied_cells):
raise Http404(ugettext("Collisions detected"))
plugin = plugin_registry.get(plugin_uid)(layout.uid, placeholder_uid)
plugin.request = request
if plugin.add_form_template:
template_name = plugin.add_form_template
# Template context
context = {'layout': layout, 'dashboard_settings': dashboard_settings}
obj = DashboardEntry()
obj.layout_uid = layout.uid
obj.placeholder_uid = placeholder_uid
obj.plugin_uid = plugin_uid
obj.user = request.user
obj.workspace = workspace
# If plugin has form, it is configurable which means we have to load the
# plugin form and validate user input.
plugin_form = plugin.get_form()
if plugin_form:
# If POST request and form data is valid, save the data and redirect
# to the dashboard edit.
if 'POST' == request.method:
form = plugin.get_initialised_create_form_or_404(
data=request.POST, files=request.FILES)
if form.is_valid():
# Saving the plugin form data.
form.save_plugin_data(request=request)
# Getting the plugin data.
obj.plugin_data = form.get_plugin_data(request=request)
# If position given, use it.
try:
position = int(position)
except Exception as e:
position = None
if position:
obj.position = position
# Save the object.
obj.save()
messages.info(
request,
_('The dashboard widget "{0}" was added '
'successfully.').format(plugin.name))
# Redirect to the dashboard view.
if obj.workspace:
return redirect('dash.edit_dashboard',
workspace=obj.workspace.slug)
else:
return redirect('dash.edit_dashboard')
# If POST but data invalid, show the form with errors.
else:
form = plugin.get_initialised_create_form_or_404()
context.update({
'form': form,
'plugin_uid': plugin_uid,
'plugin': plugin
})
# If plugin is not configurable, it's just saved as is.
else:
obj.save()
return redirect('dash.edit_dashboard')
if layout.add_dashboard_entry_ajax_template_name:
template_name_ajax = layout.add_dashboard_entry_ajax_template_name
context.update(
{'add_dashboard_entry_ajax_template_name': template_name_ajax})
if request.is_ajax():
template_name = template_name_ajax
elif layout.add_dashboard_entry_template_name:
template_name = layout.add_dashboard_entry_template_name
return render_to_response(template_name,
context,
context_instance=RequestContext(request))
def paste_entry_from_clipboard(request, layout, placeholder_uid, position, \
workspace=None, entries=[], check_only=False, \
clear_clipboard=True):
"""
Pastes entry from clipboard to the given placeholder of a workspace
selected.
:param django.http.HttpRequest request:
:param str layout_uid: Placeholder UID.
:param str placeholder_uid: Placeholder UID.
:param int position: Position.
:param mixed workspace: Either str or ``dash.models.DashboardWorkspace``
instance. If str is given, a database hit occurs in order to obtain
the ``dash.models.DashboardWorkspace`` instance. Thus, if you have the
workspace instance already, provide it as is, in order to minify
database hits.
:param iterable entries: If given, entries are not fetched but the
existing iterable is used. Each item in the iterable should be an
instance of ``dash.models.DashboardEntry``.
:param bool check_only: If set to True, it's only checked if it's possible
to paste from clipboard (the ``dashboard_entry.save()`` part is
skipped, which means that the entry is not saved in the database).
:return tuple (str, bool): (Plugin name, boolean True) tuple on success
and (error message, boolean False) on failure.
"""
clipboard_plugin_data = get_plugin_data_from_clipboard(request, layout.uid)
if not clipboard_plugin_data:
return (_("Clipboard is empty!"), False)
if not validate_placeholder_uid(layout, placeholder_uid):
return (_("Invalid placeholder `{0}`.").format(placeholder_uid), False)
user_plugin_uids = get_user_plugin_uids(request.user)
if isinstance(workspace, DashboardWorkspace):
workspace_obj = workspace
else:
if workspace:
try:
workspace_obj = DashboardWorkspace._default_manager \
.get(slug=workspace)
except ObjectDoesNotExist as e:
workspace_obj = None
else:
workspace_obj = None
dashboard_entry = DashboardEntry(
user = request.user,
workspace = workspace_obj,
layout_uid = layout.uid,
placeholder_uid = placeholder_uid,
plugin_uid = clipboard_plugin_data['plugin_uid'],
plugin_data = clipboard_plugin_data['plugin_data'],
position = position
)
# We should now check if we have a space for pasting the plugin. For that
# we should get the plugin and see if there's a space available for
# the (workspace, placeholder, user) triple given.
# Get the plugin.
plugin = dashboard_entry.get_plugin()
if not plugin.uid in user_plugin_uids:
return (_("You're not allowed to "
"use the {0} plugin.".format(safe_text(plugin.name))), False)
# Getting occupied cells
placeholder = layout.get_placeholder(placeholder_uid)
occupied_cells = build_cells_matrix(
request.user,
layout,
placeholder,
workspace = workspace
)
# Get cells occupied by plugin widget.
widget_occupied_cells = get_occupied_cells(
layout, placeholder, plugin.uid, position, check_boundaries=True
)
if widget_occupied_cells is not False \
and not lists_overlap(widget_occupied_cells, occupied_cells):
try:
if not check_only:
# Save data
dashboard_entry.save()
# Clear the clipboard
clear_clipboard_data(request, layout.uid)
return (plugin.uid, True)
except Exception as e:
return (str(e), False)
