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How do you add an in-app purchase to an iOS application?
... are not authorized to make payments,
// due to parental controls, etc
}
}
// Call this when you want to restore all purchases
// regardless of the productID you gave to the initializer
public func beginRestorePurchases(){
// restore purchases, and give responses to self
SKPayme...
How to initialize log4j properly?
...sed to initialize itself, which loggers / appenders got configured and how etc.
The configuration file can be a java properties file or an xml file. Here is a sample of the properties file format taken from the log4j intro documentation page:
log4j.rootLogger=debug, stdout, R
log4j.appender.stdo...
No == operator found while comparing structs in C++
...cs of your MyStruct1 below.
A consistent approach to ==, <, > <= etc
It's easy to leverage std::tuple's comparison operators to compare your own class instances - just use std::tie to create tuples of references to fields in the desired order of comparison. Generalising my example from h...
Rails Observer Alternatives for 4.0
...cation (consider nested forms, model business logic updating associations, etc.)
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Debug code-first Entity Framework migration codes
...ep#3: Open a console inside the output directory (/bin/Debug, /bin/Release etc) containing the dll of your migrations
Step#4: Invoke migrate.exe with the /scriptFile parameter to launch the debugger and actually debug the desired db-migration
migrate.exe "Your.Migrations.Assembly.dll" /scriptFile=...
How do you prevent IDisposable from spreading to all your classes?
... IDisposable have to dispose these, so they have to be disposable as well, etc. The only way to avoid it is to:
avoid using IDisposable classes where possible, lock or wait for events in single places, keep expensive resources in single place, etc
create them only when you need them and dispose th...
When NOT to use Cassandra?
... search for varieties of data structures like trees, queues, linked lists, etc and can be a good fit for making real-time leaderboards, pub-sub kind of system. Similarly there are other databases in this category (Including Cassandra) which are fit for different problem statements. Now lets move to ...
Checking for a dirty index or untracked files with Git
...n combination of repository state, stdin, command line options, arguments, etc. will produce the same output in all versions of Git where the command/option exists). New output variations in plumbing commands can be introduced via new options, but that can not introduce any problems for programs tha...
Is Dvorak typing appropriate for programming? [closed]
... are in different locations, they are different (US keyboard has no ´¨ç etc), and sometimes they even work differently! (In US keyboard there are no dead keys AFAIK, so one gets ~n instead of ñ, ^o instead of ô...)
– ANeves thinks SE is evil
Nov 11 '11 at ...
How can I store my users' passwords safely?
...e flag. This allows the stored proc to log the attempt, create a session, etc.
– Steven Sudit
Mar 25 '10 at 20:09
@In...