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How do I handle too long index names in a Ruby on Rails ActiveRecord migration?
...
Provide the :name option to add_index, e.g.:
add_index :studies,
["user_id", "university_id", "subject_name_id", "subject_type_id"],
:unique => true,
:name => 'my_index'
If using the :index option on references in...
How do I display an alert dialog on Android?
...lly dismissed when a dialog button is clicked.
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Continue with delete operation
}
})
// A null listener allows the but...
Set “Homepage” in Asp.Net MVC
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@NikolaiDante you should make that comment an answer as I nearly missed it and it's quicker than this answer. :) Thanks
– GazB
May 21 '13 at 12:20
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iPhone get SSID without private library
...have a commercial app that has a completely legitimate reason to see the SSID of the network it is connected to: If it is connected to a Adhoc network for a 3rd party hardware device it needs to be functioning in a different manner than if it is connected to the internet.
...
Hibernate error - QuerySyntaxException: users is not mapped [from users]
...-------------------------------------------------------
private int id;
private String name;
//~ --- [METHODS] --------------------------------------------------------------------------------------------------
@Override
public boolean equals(final Object o) {
if (...
How to implement the Android ActionBar back button?
...etty code:
public class ServicesViewActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// etc...
getActionBar().setDisplayHomeAsUpEnabled(true);
}
@Override
public boolean onOpti...
How to create a protocol with methods that are optional?
...cify any
keyword, the default is @required.
@protocol MyProtocol
- (void)requiredMethod;
@optional
- (void)anOptionalMethod;
- (void)anotherOptionalMethod;
@required
- (void)anotherRequiredMethod;
@end
share
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How can I use optional parameters in a T-SQL stored procedure?
...cedure that will handle this? Let's say I have a table with four fields: ID, FirstName, LastName and Title. I could do something like this:
...
transform object to array with lodash
... Jul 10 '14 at 10:53
Daniel SchmidtDaniel Schmidt
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...
C# Lazy Loaded Automatic Properties
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Here's my implementation of a solve to your problem. Basically the idea is a property that will be set by a function at first access and subsequent accesses will yield the same return value as the first.
public class LazyProperty<T>
{
bool _initialized = false;
T _result;...