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How to solve error “Missing `secret_key_base` for 'production' environment” (Rails 4.1)
...ut that the boilerplate .gitignore Github created for my Rails application included config/secrets.yml.
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What is an Android PendingIntent?
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This explanation becomes more clear with this snippet of code(which is included in the session's slide).
PendingIntent mIntent = PendingIntent.getService(...);
mLocationClient.requestLocationUpdates(locationRequest, mIntent);
public void onHandleIntent(Intent intent) {
String action = ...
Reference - What does this error mean in PHP?
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Rails: How can I set default values in ActiveRecord?
...ssingAttributeError if your init method accesses a column that hasn't been included in the select clause. You can guard against this case like so:
self.number ||= 0.0 if self.has_attribute? :number
and for a boolean column...
self.bool_field = true if (self.has_attribute? :bool_value) && ...
How to paste in a new line with vim?
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You can map the command to any key, including p itself: :nmap p :pu<CR> Put it in your .vimrc file and off you go :)
– Capi Etheriel
Mar 12 '12 at 14:17
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How do you import classes in JSP?
...ake a few hours now to read up on the MVC approach to web app development (including use of taglibs) - do some more googling on the subject, it's fascinating and will definitely help you write better apps.
If you are doing anything more complicated than a single JSP displaying some database results...
Is there an eval() function in Java? [duplicate]
...no standard Java class or method that will do what you want. Your options include:
Select and use some third-party expression evaluation library. For example JEL or any of the half dozen libraries listed here.
Wrap the expression in the Java source code for a class with an eval method, send that...
Update a record without first querying?
...ly what I wanted. I want the changes to go through the EF infrastructure (including using EntityFramework.Triggers project) but wanted to be able to change 1 column with only having the primary key.
– MikeJansen
Apr 23 '19 at 15:09
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Can I call a base class's virtual function if I'm overriding it?
...with mentioning base class name(like Foo::printStuff()).
code goes here
#include <iostream>
using namespace std;
class Foo
{
public:
int x;
virtual void printStuff()
{
cout<<"Base Foo printStuff called"<<endl;
}
};
class Bar : public Foo
{
public:
...
Why is it common to put CSRF prevention tokens in cookies?
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All forms must output the hidden field in HTML.
Any AJAX POSTs must also include the value.
The page must know in advance that it requires the CSRF token so it can include it in the page content so all pages must contain the token value somewhere, which could make it time consuming to implement fo...