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How to check if a user likes my Facebook Page or URL using Facebook's API
...works if the user has granted an extended permission for that which is not ideal.
Here's another approach.
In a nutshell, if you turn on the OAuth 2.0 for Canvas advanced option, Facebook will send a $_REQUEST['signed_request'] along with every page requested within your tab app. If you parse that...
Add a reference column migration in Rails 4
...b:migrate.
This migration will take care of adding a new column named user_id to uploads table (referencing id column in users table), PLUS it will also add an index on the new column.
UPDATE [For Rails 4.2]
Rails can’t be trusted to maintain referential integrity; relational databases come to o...
MySQL Data - Best way to implement paging?
...I agree that he should have mentioned that he was copying the docs and provided a link to the original source. Also I'm surprised that the documentation would include examples of using LIMIT without an ORDER BY... that seems like a bad practice to be encouraging. Without an ORDER BY there's no guara...
How to remove a field from params[:something]
...I am using Rails 4.0, and model_params.delete :key_name doesn't work - any idea why?
– Zorayr
Oct 22 '13 at 5:54
13
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Laravel Eloquent ORM Transactions
...ou can do this:
DB::transaction(function() {
//
});
Everything inside the Closure executes within a transaction. If an exception occurs it will rollback automatically.
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How do I iterate over an NSArray?
I'm looking for the standard idiom to iterate over an NSArray. My code needs to be suitable for OS X 10.4+.
8 Answers
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Accessing members of items in a JSONArray with Java
... recs.length(); ++i) {
JSONObject rec = recs.getJSONObject(i);
int id = rec.getInt("id");
String loc = rec.getString("loc");
// ...
}
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Switching the order of block elements with CSS [duplicate]
...ly need to support a single modern browser: Mobile Safari.
See: http://jsfiddle.net/thirtydot/hLUHL/
You can remove the -moz- prefixed properties if you like, I just left them in for future readers.
#blockContainer {
display: -webkit-box;
display: -moz-box;
disp...
How do I find duplicate values in a table in Oracle?
...XISTS (
SELECT 1 FROM TABLE
WHERE COLUMN_NAME = A.COLUMN_NAME
AND ROWID < A.ROWID
)
Works fine (quick enough) when there is index on column_name. And it's better way to delete or update duplicate rows.
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Getting the location from an IP address [duplicate]
...good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, and MySQL for the database.
...