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How to implement OnFragmentInteractionListener
...nded pattern for your Fragment to notify your Activity of events so it can then take appropriate action, such as load another Fragment. See this page for details, look for the "Creating event callbacks for the Activity" section: http://developer.android.com/guide/components/fragments.html
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Rails Object to hash
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If you are looking for only attributes, then you can get them by:
@post.attributes
Note that this calls ActiveModel::AttributeSet.to_hash every time you invoke it, so if you need to access the hash multiple times you should cache it in a local variable:
attribs = ...
How to check if object property exists with a variable holding the property name?
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hasOwnProperty() is better then myObj[myProp] (from other answers) as it works even if the value of myProp is 0
– Matt R
Oct 26 '12 at 19:48
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The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl
....0, so if you're using a version that is throwing these deprecation errors then you can almost certainly just start using them right away—i.e. without any installation effort.
They differ slightly, but offer a number of advantages over the old extension including API support for transactions, sto...
How to make a edittext box in a dialog
...aghu, If I want to put left margin & right margin to this edittext box then what should I write ? I tried many answers, to set margin programmatically, but nothing worked :(
– Lucifer
Jun 6 '14 at 10:03
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Programmatically create a UIView with color gradient
...er *)purpleGradientLayer;
+ (CAGradientLayer *)greenGradientLayer;
@end
Then in your implementation file, specify each gradient with this syntax :
+ (CAGradientLayer *)flavescentGradientLayer
{
UIColor *topColor = [UIColor colorWithRed:1 green:0.92 blue:0.56 alpha:1];
UIColor *bottomColo...
How to ALTER multiple columns at once in SQL Server
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@erikkallen, then do like SSMS tools usually generate their scripts: create a new table and replicate FKs and indexes, etc, drop original table and then rename new table,
– KM.
Sep 8 '16 at 12:24
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Is the ternary operator faster than an “if” condition in Java [duplicate]
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@Jon If the only difference is readability then readability is all that patters.
– Konrad Rudolph
Mar 16 '12 at 22:44
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How to request a random row in SQL?
...indexed numeric column (many tables have these as their primary keys), and then write something like:
SELECT * FROM table WHERE num_value >= RAND() *
( SELECT MAX (num_value ) FROM table )
ORDER BY num_value LIMIT 1
This works in logarithmic time, regardless of the table size, if num_val...
Why does C++ rand() seem to generate only numbers of the same order of magnitude?
...n 1 and 2^25 :) thanks for the quick answer. I need to rethink the program then. Question answered.
– Tallaron Mathias
Jun 20 '13 at 9:35
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