Comments (9)
atodorov
commented on August 15, 2024
1
Hi @alabarga,
I think this is not a bug in the sence that loading multiple charts is possible. We're just not doing it right.
I read through the code and figured it out. See the comments in templatetags/chartit.py.
First argument to load_charts is a Chart list(or object), the second is comma separated list of HTML IDs where the charts need to be rendered.
Here's my code, which works:
return render(request, 'index.html',
{
'charts' : [chart_1, chart_2],
}
)
{{ charts|load_charts:"chart_1,chart_2" }}
<div id="chart_1">Chart will be rendered here</div>
<div id="chart_2">Chart will be rendered here</div>
I also think I know the reason this is designed in such a way. Looking at the result it is two script tags - one to load the HighCharts javascript file and the second to define an array of all chart objects to display in the page.
This said, if we wanted to use the syntax with two calls then we should have something like:
{% load_highchart_js_files %}
{{ linechart|load_chart:"container1"}}
{{ barchart|load_chart:"container2"}}
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atodorov
commented on August 15, 2024
+1 on this.
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akipkemei
commented on August 15, 2024
It just worked as well for me, many thanks @atodorov and @alabarga
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bbratchiv
commented on August 15, 2024
Thanks guys!
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ndamulelonemakh
commented on August 15, 2024
still works in 2016!
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smaislin186
commented on August 15, 2024
It is not working quite like documented here anymore. The first graph shows up fine, but the second does not appear with the below code.
{% load chartit %} {{chart_list|load_charts:"cht_1,cht_2"}} {% block main %} <p>Home</p> <body> <div id="cht_1">{{chart_list|load_charts:"cht_1"}}</div> <div id="cht_2">{{chart_list|load_charts:"cht_2"}}</div> </body> {% endblock %}
If I remove the "{{chart_list|load_charts:"cht_1"}}" from the actual html tags, it does not work at all.
I found the below does work:
{% load chartit %} {{chart_list|load_charts:"cht_1,cht_2"}} {% block main %} <p>Home</p> <body> <div id="cht_1">{{chart_list|load_charts:"cht_1,cht_2"}}</div> <div id="cht_2">{{chart_list|load_charts:"cht_1,cht_2"}}</div> </body> {% endblock %}
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atodorov
commented on August 15, 2024
@smaislin186 your HTML doesn't look right and honestly I have no idea why it works or doesn't work in the two cases you describe. Here are a few notes for you though:
chart_list|load_chartsshould be called only once in the entire HTML page. it's job is to render the javascript charts into the container IDs given as parameters.- Usually
chart_list|load_chartsis put in the<head>section of the HTML, right after theload chartittemplate tag. From your description I get the feeling these two are somewhere in the<body> - Checkout the templates in
demoproject/to see how it is done.
and finally: this piece of code hasn't been changed in years, only documentation was updated recently. Maybe the documentation isn't 100% clear but I don't think it is broken. If this still doesn't work for you please post a link to your entire HTML template.
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SandeepKumar2016
commented on August 15, 2024
Hi, Please help me with line charts. I have posted a question in stack, please suggest.
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atodorov
commented on August 15, 2024
@SandeepKumar2016 answered on SO. Sorry for the delay.
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