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Django Forms: if not valid, show form with error message
...ike what I did below
page.html
<html>
<head>
<script>
{% if messages %}
{% for message in messages %}
alert(message);
{% endfor %}
{% endif %}
</script>
</head>
<...
What does ^M character mean in Vim?
...his to get rid of ^M in files copied from Windows to Unix (Solaris, Linux, OSX).
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Tips for using Vim as a Java IDE? [closed]
...c.com/article/configure-vi-for-java-application-development/5054618. The description of :make was for ant not maven, but otherwise a nice summary.
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Add a “hook” to all AJAX requests on a page
...orm an action. At this point I'm assuming that there are other third-party scripts on the page. Some of these might use jQuery, while others do not. Is this possible?
...
What is the difference between require() and library()?
...rary(package, character.only=T)
}
}
Pro tips:
When used inside the script, you can avoid a dialog screen by specifying the repos parameter of install.packages(), such as
install.packages(package, repos="http://cran.us.r-project.org")
You can wrap require() and library() in suppressPackageS...
How to drop column with constraint?
...NG option set for them.
UPD:
Completely automated dropping of constraints script:
DECLARE @sql NVARCHAR(MAX)
WHILE 1=1
BEGIN
SELECT TOP 1 @sql = N'alter table tbloffers drop constraint ['+dc.NAME+N']'
from sys.default_constraints dc
JOIN sys.columns c
ON c.default_object_id = d...
How to locate the vimrc file used by vim editor?
...nd. For that the $MYVIMRC variable is useful, as is looking at output of :scripts for full list of all loaded script files, including all vimrc files.
– Herbert Sitz
Jan 23 '12 at 20:38
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Adding images or videos to iPhone Simulator
... to open the Photos app and start populating the library.
If you want a scriptable method, read on.
Note - while this is valid, and works, I think Koen's solution below is now a better one, since it does not require rebooting the simulator.
Identify your simulator by going to xCode->Devices,...
List of tables, db schema, dump etc using the Python sqlite3 API
... @jbuddy_13 sqlite> is the sqlite command line client prompt. The purpose of the example was to demonstrate how one could query the database to list tables and schema.
– converter42
May 25 at 16:11
...
Java String to SHA1
...version 1.7+) to do this job for you.
DigestUtils.sha1Hex(stringToConvertToSHexRepresentation)
Thanks to @Jon Onstott for this suggestion.
Old Answer
Convert your Byte Array to Hex String. Real's How To tells you how.
return byteArrayToHexString(md.digest(convertme))
and (copied from Real's ...