i know there is probably something simple i am doing wrong, but i don't know where else to get an answer. I created a django site and the following function returns holoview html:
from django.shortcuts import render
from django.http import HttpResponseRedirect
from charts.models import Ord
from IPython.display import display_html
import pandas as pd
import holoviews as hv
hv.extension('bokeh')
renderer = hv.renderer('bokeh')
# Create your views here.
def displayChart(request):
df = pd.DataFrame(list(Ord.objects.using('DB').all().values('ordtyp')[:500]))
df = df.groupby([df.ordtyp]).size().reset_index(name='counts')
bars = hv.Bars(df, kdims=[('ordtyp', 'Order Type')], vdims=[('counts', 'Count of Orders')])
hv.Store.registry['bokeh'][hv.Bars]
html = renderer.html(bars)
return render(request, 'charts/charts.html', {'html': html})
i put a block in the charts.html file as:
{{ html |safe }}
and all i get is a blank page. i then took the raw html that the renderer is returning and tried to copy and paste it directly into my html file, and got the same thing. the html is below. Also, the chart does work in Jupyter Notebook... can you tell me what i am doing wrong?
charts.html:
> <!DOCTYPE html>
> <html>
> <head>
> <title>Charts</title>
> </head>
> <body>
> {{html|safe}}
> </body>
> </html>
raw html that the renderer returned:
<div style='display: table; margin: 0 auto;'>
<div class="bk-root">
<div class="bk-plotdiv" id="0dd69ef6-4d30-48f5-a95a-1201437920de"></div>
</div>
<script type="text/javascript">
(function(root) {
function now() {
return new Date();
}
var force = false;
if (typeof (root._bokeh_onload_callbacks) === "undefined" || force === true) {
root._bokeh_onload_callbacks = [];
root._bokeh_is_loading = undefined;
}
if (typeof (root._bokeh_timeout) === "undefined" || force === true) {
root._bokeh_timeout = Date.now() + 0;
root._bokeh_failed_load = false;
}
var NB_LOAD_WARNING = {'data': {'text/html':
"<div style='background-color: #fdd'>\n"+
"<p>\n"+
"BokehJS does not appear to have successfully loaded. If loading BokehJS from CDN, this \n"+
"may be due to a slow or bad network connection. Possible fixes:\n"+
"</p>\n"+
"<ul>\n"+
"<li>re-rerun `output_notebook()` to attempt to load from CDN again, or</li>\n"+
"<li>use INLINE resources instead, as so:</li>\n"+
"</ul>\n"+
"<code>\n"+
"from bokeh.resources import INLINE\n"+
"output_notebook(resources=INLINE)\n"+
"</code>\n"+
"</div>"}};
function display_loaded() {
if (root.Bokeh !== undefined) {
var el = document.getElementById("0dd69ef6-4d30-48f5-a95a-1201437920de");
if (el != null) {
el.textContent = "BokehJS " + Bokeh.version + " successfully loaded.";
}
} else if (Date.now() < root._bokeh_timeout) {
setTimeout(display_loaded, 100)
}
}
function run_callbacks() {
try {
root._bokeh_onload_callbacks.forEach(function(callback) { callback() });
}
finally {
delete root._bokeh_onload_callbacks
}
console.info("Bokeh: all callbacks have finished");
}
function load_libs(js_urls, callback) {
root._bokeh_onload_callbacks.push(callback);
if (root._bokeh_is_loading > 0) {
console.log("Bokeh: BokehJS is being loaded, scheduling callback at", now());
return null;
}
if (js_urls == null || js_urls.length === 0) {
run_callbacks();
return null;
}
console.log("Bokeh: BokehJS not loaded, scheduling load and callback at", now());
root._bokeh_is_loading = js_urls.length;
for (var i = 0; i < js_urls.length; i++) {
var url = js_urls[i];
var s = document.createElement('script');
s.src = url;
s.async = false;
s.onreadystatechange = s.onload = function() {
root._bokeh_is_loading--;
if (root._bokeh_is_loading === 0) {
console.log("Bokeh: all BokehJS libraries loaded");
run_callbacks()
}
};
s.onerror = function() {
console.warn("failed to load library " + url);
};
console.log("Bokeh: injecting script tag for BokehJS library: ", url);
document.getElementsByTagName("head")[0].appendChild(s);
}
};var element = document.getElementById("0dd69ef6-4d30-48f5-a95a-1201437920de");
if (element == null) {
console.log("Bokeh: ERROR: autoload.js configured with elementid '0dd69ef6-4d30-48f5-a95a-1201437920de' but no matching script tag was found. ")
return false;
}
var js_urls = [];
var inline_js = [
function(Bokeh) {
(function() {
var fn = function() {
var docs_json = {"c7d02456-4a61-46d2-8431-34face1e6c67":{"roots":{"references":[{"attributes":{"callback":null,"column_names":["ORDTYP","counts"],"data":{"ORDTYP":["CC","CD","CZ","DB","DR","ED","EI","IC","ID","IP","MC","MF","MI","MK","MP","MS","MX","PC","PM","PT","SD","TI","TX","ZLR"],"counts":[60,3,2,17,1,13,2,28,21,1,3,6,1,2,2,35,10,20,12,2,525,7,225,1]}},"id":"46c2f30a-31d4-4c3f-ade2-4de96e13a4db","type":"ColumnDataSource"},{"attributes":{"active_drag":"auto","active_inspect":"auto","active_scroll":"auto","active_tap":"auto","tools":[{"id":"16eb22e8-c448-49d7-ab20-a02f2ebb3e5c","type":"SaveTool"},{"id":"218dbf74-8190-491c-b2dc-d13097c1f9e4","type":"PanTool"},{"id":"03f67199-1622-4784-b9a2-b36b4a47477b","type":"WheelZoomTool"},{"id":"d48948b1-297b-4915-bf84-916a417b01ee","type":"BoxZoomTool"},{"id":"722ae387-76c5-48cb-a387-7090de91b014","type":"ResetTool"}]},"id":"8ce67c3d-e8dc-41a2-86a8-76685fb90fe9","type":"Toolbar"},{"attributes":{"callback":null,"end":525,"start":0},"id":"16f5dfe6-08a6-4ad8-a190-bdf67979b26c","type":"DataRange1d"},{"attributes":{},"id":"bfe7ff64-0995-43a7-8944-6d491bf93b14","type":"CategoricalTicker"},{"attributes":{"callback":null,"factors":["CC","CD","CZ","DB","DR","ED","EI","IC","ID","IP","MC","MF","MI","MK","MP","MS","MX","PC","PM","PT","SD","TI","TX","ZLR"]},"id":"36f2f454-71a9-4511-a446-2c56a015ecd0","type":"FactorRange"},{"attributes":{"axis_label":"Count of Orders","formatter":{"id":"7303c9ca-b3e1-40be-bd44-1ef7f06d8a2d","type":"BasicTickFormatter"},"plot":{"id":"c84e964a-0b0b-4d95-aa2c-3657b7811bd0","subtype":"Figure","type":"Plot"},"ticker":{"id":"95b801e5-1f32-4ff1-be0c-e64ddcb14fa3","type":"BasicTicker"}},"id":"bd1e5045-1d72-4e92-8914-13be1ee0d04f","type":"LinearAxis"},{"attributes":{},"id":"95b801e5-1f32-4ff1-be0c-e64ddcb14fa3","type":"BasicTicker"},{"attributes":{"grid_line_color":{"value":null},"plot":{"id":"c84e964a-0b0b-4d95-aa2c-3657b7811bd0","subtype":"Figure","type":"Plot"},"ticker":{"id":"bfe7ff64-0995-43a7-8944-6d491bf93b14","type":"CategoricalTicker"}},"id":"0dee56d3-b965-4d15-bf6d-93cd1ea2a20d","type":"Grid"},{"attributes":{"bottom_units":"screen","fill_alpha":{"value":0.5},"fill_color":{"value":"lightgrey"},"left_units":"screen","level":"overlay","line_alpha":{"value":1.0},"line_color":{"value":"black"},"line_dash":[4,4],"line_width":{"value":2},"plot":null,"render_mode":"css","right_units":"screen","top_units":"screen"},"id":"2a376fc3-0bcc-47df-a0e8-2389040d3254","type":"BoxAnnotation"},{"attributes":{"plot":null,"text":"","text_color":{"value":"black"},"text_font_size":{"value":"12pt"}},"id":"04310042-3ae0-4955-bd48-3d9c8e2d9be2","type":"Title"},{"attributes":{},"id":"722ae387-76c5-48cb-a387-7090de91b014","type":"ResetTool"},{"attributes":{"dimension":1,"grid_line_color":{"value":null},"plot":{"id":"c84e964a-0b0b-4d95-aa2c-3657b7811bd0","subtype":"Figure","type":"Plot"},"ticker":{"id":"95b801e5-1f32-4ff1-be0c-e64ddcb14fa3","type":"BasicTicker"}},"id":"a281b265-486f-42a3-829a-c71bfd6830d0","type":"Grid"},{"attributes":{"axis_label":"Order Type","formatter":{"id":"259e4d35-20fb-4eb4-9fbd-6068fef93c0d","type":"CategoricalTickFormatter"},"plot":{"id":"c84e964a-0b0b-4d95-aa2c-3657b7811bd0","subtype":"Figure","type":"Plot"},"ticker":{"id":"bfe7ff64-0995-43a7-8944-6d491bf93b14","type":"CategoricalTicker"}},"id":"9f673b5b-85bf-40d1-96f3-b27737ecc242","type":"CategoricalAxis"},{"attributes":{},"id":"218dbf74-8190-491c-b2dc-d13097c1f9e4","type":"PanTool"},{"attributes":{},"id":"259e4d35-20fb-4eb4-9fbd-6068fef93c0d","type":"CategoricalTickFormatter"},{"attributes":{},"id":"16eb22e8-c448-49d7-ab20-a02f2ebb3e5c","type":"SaveTool"},{"attributes":{},"id":"721998c2-dee0-4e47-9a6d-ecef76d53889","type":"LinearScale"},{"attributes":{},"id":"03f67199-1622-4784-b9a2-b36b4a47477b","type":"WheelZoomTool"},{"attributes":{"overlay":{"id":"2a376fc3-0bcc-47df-a0e8-2389040d3254","type":"BoxAnnotation"}},"id":"d48948b1-297b-4915-bf84-916a417b01ee","type":"BoxZoomTool"},{"attributes":{"data_source":{"id":"46c2f30a-31d4-4c3f-ade2-4de96e13a4db","type":"ColumnDataSource"},"glyph":{"id":"3ab94627-160a-4913-95e6-c25fa17a1d51","type":"VBar"},"hover_glyph":null,"muted_glyph":null,"nonselection_glyph":{"id":"f72f6dc1-7c71-4f5e-80f9-fbd1351268b3","type":"VBar"},"selection_glyph":null,"view":{"id":"9df174a0-4967-47fd-82f3-3d054eee1a12","type":"CDSView"}},"id":"897248ec-4fbd-404c-b3b3-09900b6e3560","type":"GlyphRenderer"},{"attributes":{"fill_alpha":{"value":0.1},"fill_color":{"value":"#30a2da"},"line_alpha":{"value":0.1},"line_color":{"value":"#000000"},"top":{"field":"counts"},"width":{"value":0.8},"x":{"field":"ORDTYP"}},"id":"f72f6dc1-7c71-4f5e-80f9-fbd1351268b3","type":"VBar"},{"attributes":{"fill_color":{"value":"#30a2da"},"line_color":{"value":"#000000"},"top":{"field":"counts"},"width":{"value":0.8},"x":{"field":"ORDTYP"}},"id":"3ab94627-160a-4913-95e6-c25fa17a1d51","type":"VBar"},{"attributes":{"source":{"id":"46c2f30a-31d4-4c3f-ade2-4de96e13a4db","type":"ColumnDataSource"}},"id":"9df174a0-4967-47fd-82f3-3d054eee1a12","type":"CDSView"},{"attributes":{},"id":"eb1872c1-4fa5-47b0-b5c7-43dfe9b890e3","type":"CategoricalScale"},{"attributes":{},"id":"7303c9ca-b3e1-40be-bd44-1ef7f06d8a2d","type":"BasicTickFormatter"},{"attributes":{"background_fill_color":{"value":"white"},"below":[{"id":"9f673b5b-85bf-40d1-96f3-b27737ecc242","type":"CategoricalAxis"}],"left":[{"id":"bd1e5045-1d72-4e92-8914-13be1ee0d04f","type":"LinearAxis"}],"min_border_bottom":10,"min_border_left":10,"min_border_right":10,"min_border_top":10,"plot_height":300,"plot_width":300,"renderers":[{"id":"9f673b5b-85bf-40d1-96f3-b27737ecc242","type":"CategoricalAxis"},{"id":"0dee56d3-b965-4d15-bf6d-93cd1ea2a20d","type":"Grid"},{"id":"bd1e5045-1d72-4e92-8914-13be1ee0d04f","type":"LinearAxis"},{"id":"a281b265-486f-42a3-829a-c71bfd6830d0","type":"Grid"},{"id":"2a376fc3-0bcc-47df-a0e8-2389040d3254","type":"BoxAnnotation"},{"id":"897248ec-4fbd-404c-b3b3-09900b6e3560","type":"GlyphRenderer"}],"title":{"id":"04310042-3ae0-4955-bd48-3d9c8e2d9be2","type":"Title"},"toolbar":{"id":"8ce67c3d-e8dc-41a2-86a8-76685fb90fe9","type":"Toolbar"},"x_range":{"id":"36f2f454-71a9-4511-a446-2c56a015ecd0","type":"FactorRange"},"x_scale":{"id":"eb1872c1-4fa5-47b0-b5c7-43dfe9b890e3","type":"CategoricalScale"},"y_range":{"id":"16f5dfe6-08a6-4ad8-a190-bdf67979b26c","type":"DataRange1d"},"y_scale":{"id":"721998c2-dee0-4e47-9a6d-ecef76d53889","type":"LinearScale"}},"id":"c84e964a-0b0b-4d95-aa2c-3657b7811bd0","subtype":"Figure","type":"Plot"}],"root_ids":["c84e964a-0b0b-4d95-aa2c-3657b7811bd0"]},"title":"Bokeh Application","version":"0.12.7"}};
var render_items = [{"docid":"c7d02456-4a61-46d2-8431-34face1e6c67","elementid":"0dd69ef6-4d30-48f5-a95a-1201437920de","modelid":"c84e964a-0b0b-4d95-aa2c-3657b7811bd0"}];
Bokeh.embed.embed_items(docs_json, render_items);
};
if (document.readyState != "loading") fn();
else document.addEventListener("DOMContentLoaded", fn);
})();
},
function(Bokeh) {
}
];
function run_inline_js() {
if ((root.Bokeh !== undefined) || (force === true)) {
for (var i = 0; i < inline_js.length; i++) {
inline_js[i].call(root, root.Bokeh);
}if (force === true) {
display_loaded();
}} else if (Date.now() < root._bokeh_timeout) {
setTimeout(run_inline_js, 100);
} else if (!root._bokeh_failed_load) {
console.log("Bokeh: BokehJS failed to load within specified timeout.");
root._bokeh_failed_load = true;
} else if (force !== true) {
var cell = $(document.getElementById("0dd69ef6-4d30-48f5-a95a-1201437920de")).parents('.cell').data().cell;
cell.output_area.append_execute_result(NB_LOAD_WARNING)
}
}
if (root._bokeh_is_loading === 0) {
console.log("Bokeh: BokehJS loaded, going straight to plotting");
run_inline_js();
} else {
load_libs(js_urls, function() {
console.log("Bokeh: BokehJS plotting callback run at", now());
run_inline_js();
});
}
}(window));
</script></div>
THANKS!
You are missing the JS and CSS that's required to render this output. You can either manually include BokehJS as a script tag, e.g. for bokeh 0.12.9 you'd add this:
<link
href="http://cdn.bokeh.org/bokeh/release/bokeh-0.12.9.min.css"
rel="stylesheet" type="text/css">
<link
href="http://cdn.bokeh.org/bokeh/release/bokeh-widgets-0.12.9.min.css"
rel="stylesheet" type="text/css">
<script src="http://cdn.bokeh.org/bokeh/release/bokeh-0.12.9.min.js"></script>
<script src="http://cdn.bokeh.org/bokeh/release/bokeh-widgets-0.12.6.min.js"></script>
Alternatively you can also use the renderer.static_html method to export a div which includes all the required JS and CSS, e.g.:
hmap = hv.HoloMap({i: hv.Curve(np.random.rand(10)*i) for i in range(1,5)})
html = hv.renderer('bokeh').static_html(hmap)
with open('test.html', 'w') as f:
f.write(html)
The static_html method also accepts a template to embed the JS, CSS and HTML separately:
<html>
<head>
{css}
{js}
</head>
<body>
{html}
</body>
</html>
In future releases we will also have a components method letting you get the JS, CSS and HTML components separately.
Is there a way to make a fieldset collapsible, but start expanded? When you add collapse to the fieldset classes, it gets the functionality but starts collapsed. I've taken a look at the JS that shows/hides the fieldset content, but it doesn't look like there's anything in there to do what I'd like it to, so I'm assuming I'll have to roll my own. Just wanted to check before I went through that effort.
admin.py:
class PageAdmin(admin.ModelAdmin):
fieldsets = (
(None, {
'fields': ('title', 'content', )
}),
('Other Informations', {
'classes': ('collapse', 'open'),
'fields': ('slug', 'create-date',)
}),
)
templates/app_label/model_name/change_form.html:
{% extends "admin/model_name/change_form.html" %}
{% block extrahead %}
{{ block.super }}
<script src="{{ STATIC_URL }}admin/js/collapse-open.js" type="text/javascript"></script>
{% endblock %}
static/admin/js/collapse-open.js:
(function($) {
$(document).ready(function() {
$('fieldset.collapse.open').removeClass('collapsed');
});
})(django.jQuery);
I know this is real old but I also just came across this issue. After thinking about it way too hard I found an easy solution which seems to get the job done involving 0 plugins or additional js.
Within fieldsets construct Add 'collapse in' rather than 'collapse' to class:
fieldsets = [
('Start Expanded', {
'fields': ['field1', 'field2', 'field3'],
'classes': ['collapse in',]
})
]
django-grappelli provides this as one of the features. Here's the wiki page about that feature (with screenshots).
Accoding with the grappelli docs only need to add "classes" : ('grp-collapse grp-closed')
for example
class EntryOptions(admin.ModelAdmin):
...
fieldsets = (
('', {
'fields': ('title', 'subtitle', 'slug', 'pub_date', 'status',),
}),
('Flags', {
'classes': ('grp-collapse grp-closed',),
'fields' : ('flag_front', 'flag_sticky', 'flag_allow_comments',),
}),
note: if you use grappelli version < 2.4 use 'grp-closed' instead 'collapse-closed'*
actually 'collapse-close' still is working but is recommended to use the new classes
Starting from Setomidor answer, I'd like to suggest a simpler alternative that does exactly what you want (if Grappelli is not an option, obviously).
Create the template override as explained (admin/(app)/(model)/change_form.html) and instead of removing the collapsible effect for the "add" model case, simply call the click method of the field-set collapser (i.e. the small link with the show/hide text) to have the whole field-set expanded as soon as the page loads.
The quickest hack I could find was to add a new class start-open to the fieldset
classes = ['collapse', 'start-open']
and then modify static/admin/js/collapse.js.
from:
// Add toggle to anchor tag
var toggles = document.querySelectorAll('fieldset.collapse a.collapse-toggle');
var toggleFunc = function(ev) {
ev.preventDefault();
var fieldset = closestElem(this, 'fieldset');
if (fieldset.classList.contains('collapsed')) {
// Show
this.textContent = gettext('Hide');
fieldset.classList.remove('collapsed');
} else {
// Hide
this.textContent = gettext('Show');
fieldset.classList.add('collapsed');
}
};
for (i = 0; i < toggles.length; i++) {
toggles[i].addEventListener('click', toggleFunc);
}
to:
// Add toggle to anchor tag
var toggles = document.querySelectorAll('fieldset.collapse a.collapse-toggle');
// NEW: select toggles to open
var open_toggles = document.querySelectorAll('fieldset.collapse.start-open a.collapse-toggle');
var toggleFunc = function(ev) {
ev.preventDefault();
var fieldset = closestElem(this, 'fieldset');
if (fieldset.classList.contains('collapsed')) {
// Show
this.textContent = gettext('Hide');
fieldset.classList.remove('collapsed');
} else {
// Hide
this.textContent = gettext('Show');
fieldset.classList.add('collapsed');
}
};
for (i = 0; i < toggles.length; i++) {
toggles[i].addEventListener('click', toggleFunc);
}
// NEW: open toggles
for (i = 0; i < open_toggles.length; i++) {
toggles[i].click();
}
Old question, but I ran into the same one and came up with an answer which can be implemented using standard django:
create file: admin/(app)/(model)/change_form.html in your templates directory to make your (model) of your (app) use that form file.
Add this code to the file:
{% extends "admin/change_form.html" %}
{% block extrahead %}
<!-- Load superblock (where django.jquery resides) -->
{{ block.super }}
<!-- only do this on 'add' actions (and not 'change' actions) -->
{% if add and adminform %}
<script type="text/javascript">
(function($) {
$(document).ready(function($) {
//Remove the 'collapsed' class to make the fieldset open
$('.collapse').removeClass('collapsed');
//Remove the show/hide links
$('.collapse h2 a').remove();
//Tidy up by removing the parenthesis from all headings
var $headings = $(".collapse h2");
$headings.each(function(i, current){
var str = $(current).text();
parenthesisStart = str.indexOf('(');
$(current).text(str.substring(0, parenthesisStart));
});
});
})(django.jQuery);
</script>
{% endif %}
{% endblock %}
For more information about using django.jQuery instead of "regular" jQuery, see: http://blog.picante.co.nz/post/Customizing-Django-Admin-with-jQuery--Getting--is-not-a-function/
So this one worked for me:
class PageAdmin(admin.ModelAdmin):
fieldsets = (
(None, {
'fields': ('title', 'content', )
}),
('Other Informations', {
'classes': ('wide'),
'fields': ('slug', 'create-date',)
}),
)
With django 4.x, here is my admin/js/collapse.js
add start-open in class
'use strict';
{
window.addEventListener('load', function() {
// Add anchor tag for Show/Hide link
const fieldsets = document.querySelectorAll('fieldset.collapse');
// NEW: select toggles to open
var open_toggles = document.querySelectorAll('fieldset.collapse.start-open');
for (const [i, elem] of fieldsets.entries()) {
// Don't hide if fields in this fieldset have errors
if (elem.querySelectorAll('div.errors, ul.errorlist').length === 0) {
if (elem.classList[3] != 'start-open') {
elem.classList.add('collapsed');
}
const h2 = elem.querySelector('h2');
const link = document.createElement('a');
link.id = 'fieldsetcollapser' + i;
link.className = 'collapse-toggle';
link.href = '#';
if (elem.classList[3] != 'start-open') {
link.textContent = gettext('Show');
} else {
link.textContent = gettext('Hide');
}
h2.appendChild(document.createTextNode(' ('));
h2.appendChild(link);
h2.appendChild(document.createTextNode(')'));
}
}
// Add toggle to hide/show anchor tag
const toggleFunc = function(ev) {
if (ev.target.matches('.collapse-toggle')) {
ev.preventDefault();
ev.stopPropagation();
const fieldset = ev.target.closest('fieldset');
if (fieldset.classList.contains('collapsed')) {
// Show
ev.target.textContent = gettext('Hide');
fieldset.classList.remove('collapsed');
} else {
// Hide
ev.target.textContent = gettext('Show');
fieldset.classList.add('collapsed');
}
}
};
document.querySelectorAll('fieldset.module').forEach(function(el) {
el.addEventListener('click', toggleFunc);
});
});
}