How to modify certain part of Django content by adding <span>, while keeping the original format of paragraph text?
Question
I am trying to display a paragraph of text ( content ) from django, but I want to add <span class="modify"> to particular words (whichever matches pre-defined words in a referenceList ) in the paragraph.
here's my view.py:
def post_content(request, id=None):
instance = get_object_or_404(post, id=id)
content = instance.content.split()
referenceList = ["customer","sales","service","management"]
context = {
"title": instance.title,
"instance": instance,
"content": content,
"referenceList": referenceList
}
return render(request,"get_post_content.html",context)
And here is my get_post_content.html:
<!--DOCTYPE html-->
<html>
<style type="text/css">
.modify{
color: blue;
}
</style>
<body>
<h1>{{ instance.title }}</h1>
{{ instance.author }}<br/>
<pre class="postContent">
{% for obj in content %}
{% if obj in referenceList %}
<span class="modify">{{ obj }}</span>
{% else %}
{{ obj }}
{% endif %}
{% endfor %}
</pre>
</body>
</html>
This is able to differentiate the words and change to the css I want it to, but it is just going through and displaying a list of strings and all the spaces and '\\n' are lost. Is there a way to keep the original format of text (with spaces and '\\n' kept)? Thanks in advance!!
1 answers
solution1
0 ACCPTED 2016-02-12 04:29:10
>>> def add_span(arg)
>>> return '<span class="modify"> %s </span>'%arg.string[arg.regs[0][0]:arg.regs[0][1]]
>>> import re
>>> r = re.compile("foo|baz")
>>> content = "Once upon a time foo met baz"
>>> print r.sub(add_span,content)
Once upon a time <span class="modify"> foo </span> met <span class="modify"> baz </span>
Then edit your view code. Use a form, to validate, since when you add span you will have to mark the tag as safe, otherwise django will escape it:
import re
from django import forms
def add_span(arg)
return '<span class="modify"> %s </span>'%arg.string[arg.regs[0][0]:arg.regs[0][1]]
r = re.compile("customer|sales|service|management")
class ValidateRefList(Form):
content = forms.CharField()
def save(self):
return r.sub(add_span,self.cleaned_data['content'])
def post_content(request, id=None):
instance = get_object_or_404(post, id=id)
f = ValidateRefList({'content':instance.content})
if f.is_valid():
fixed_content = f.save()
else:
# do something else
context = {
"title": instance.title,
"instance": instance,
"content": fixed_content
}
return render(request,"get_post_content.html",context)
Finally, in your template, simply:
{{ content|safe }}
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