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Upload files with HTTPWebrequest (multipart/form-data)
...questions/566462/… -- I was testing against cgi-lib.berkeley.edu/ex/fup.html
– CVertex
Sep 29 '10 at 3:38
...
How to remove a field from params[:something]
...
respond_to do |format|
if params[:company].present?
format.html { redirect_to(:controller => :shopping, :action => :index) }
else
format.html
end
end
this will remove params from the url
share...
Android Location Providers - GPS or Network Provider?
...Official site : http://developer.android.com/google/play-services/location.html
Fused location provider example:
GIT : https://github.com/kpbird/fused-location-provider-example
http://blog.lemberg.co.uk/fused-location-provider
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...
How can I make an svg scale with its parent container?
...0,0" />
</svg>
If you want to scale it up to the width of the HTML viewport:
<svg width="100%" viewBox="0 0 20 10">
<polygon fill=red stroke-width=0
points="0,10 20,10 10,0" />
</svg>
Note that by default, the aspect ratio is preserved. So if you...
What is the easiest way to disable/enable buttons and links (jQuery + Bootstrap)
...r('disabled','disabled');
After executing above line, your submit button html tag would look like this:
<input type="submit" class="btn" value="Submit" disabled/>
Notice the 'disabled' attribute has added.
Enabling:
For enabling button, such as when you have some text in text field. You...
Can someone explain collection_select to me in clear, simple terms?
... that you can pass. These are documented here, under the heading Options.
html_options : Whatever is passed here, is simply added to the generated html tag. If you want to supply a class, id, or any other attribute, it goes here.
Your association could be written as:
collection_select(:user, :pla...
How to convert local time string to UTC?
...tc)
for details see:
see: https://blog.ganssle.io/articles/2019/11/utcnow.html
original answer (from 2010):
The datetime module's utcnow() function can be used to obtain the current UTC time.
>>> import datetime
>>> utc_datetime = datetime.datetime.utcnow()
>>> utc_dateti...
Set margin size when converting from Markdown to PDF with pandoc
...ted an RMarkdown file in RStudio and managed to knit it with knitr into an HTML and .md file. Next, I used pandoc to convert the .md file into a PDF file (I get an error if I try and convert from the .html file). However, the PDF that is produced have massive margins (like this http://johnmacfarl...
Regular expression to match DNS hostname or IP Address?
....linuxinsight.com/how_to_grep_for_ip_addresses_using_the_gnu_egrep_utility.html
egrep '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}'
Though the case doesn't account for values like 0 in the fist octet, and values greater than 254 (ip addres) or 255 (netmask). Maybe an additional if statement would hel...
python's re: return True if string contains regex pattern
...P actually wants search rather than match. (See docs.python.org/library/re.html#matching-vs-searching.) Also, I think it would be helpful if you showed actual possible arguments, in the correct order, rather than just ....
– ruakh
Jan 25 '12 at 23:37
...