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Devise - How do I forbid certain users from signing in?
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Then add the code below to the User model:
class User < ActiveRecord::Base
#this method is called by devise to check for "active" state of the model
def active_for_authentication?
#remember to call the super
#then put our own check to determine "active" state using
#our own "is...
HTML5 Canvas Resize (Downscale) Image High Quality?
...process (see demo at bottom).
Here is code for adding sharpen filter (it's based on a generic convolution filter - I put the weight matrix for sharpen inside it as well as a mix factor to adjust the pronunciation of the effect):
Usage:
sharpen(context, width, height, mixFactor);
The mixFactor is a ...
How to check if a given directory exists in Ruby
... write a script which automatically checks out or updates a Subversion URL based on whether a specified directory exists or not.
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DefaultInlineConstraintResolver Error in WebAPI 2
...axRouteConstraint) },
{ "range", typeof(RangeRouteConstraint) },
// Regex-based constraints
{ "alpha", typeof(AlphaRouteConstraint) },
{ "regex", typeof(RegexRouteConstraint) }
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SOAP server and client application VCL+indy demo for Delphi XE?
...g in a few of the demos so that it tells you that you need to install interbase for this demo to work, since some of the demos require Interbase installed and running, and one requires an alias called IBLOCAL to exist, and preferably a table called EMPLOYEE to exist.
The elements of this demo ar...
What does `kill -0 $pid` in a shell script do?
...rmation (if it exists at all) is highly system-dependent. On recent Debian-based systems, use man 2 kill instead.
– Todd A. Jacobs
Jan 12 '13 at 18:15
2
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How do you organise multiple git repositories, so that all of them are backed up together?
...elf typing the URLs twice by using the contruction:
[url "<actual url base>"]
insteadOf = <other url base>
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How to test an Android Library Project
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but tools like Firebase Test Lab require an APK or AAB and don't accept an AAR file which is the output of assemble task of the library
– Mustafa Berkay Mutlu
Mar 17 at 22:22
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Use ASP.NET MVC validation with jquery ajax?
...You can loop through the returned data to set the error messages as needed based on the Keys returned (I think something like $('input[name="' + err.key + '"]') would find your input element
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What is Double Brace initialization in Java?
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An excerpt
private static class IndustrialRaverMonkey
extends Creature.Base {{
life = 46;
strength = 35;
charisma = 91;
weapon = 2;
}}
private static class DwarvenAngel
extends Creature.Base {{
life = 540;
strength = 6;
charisma = 144;
weapon = 50;
}}
And...