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Would it be beneficial to begin using instancetype instead of id?
...ype that, as far as I can see, replaces id as a return type in -alloc and init .
4 Answers
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Want to find records with no associated records in Rails
...drop the DISTINCT. Otherwise, I think you'd want to normalize out the data and index in that case. I might do that by creating a friend_ids hstore or serialized column. Then you could say Person.where(friend_ids: nil)
– Unixmonkey
Dec 20 '16 at 16:02
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Best way to select random rows PostgreSQL
I want a random selection of rows in PostgreSQL, I tried this:
12 Answers
12
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How can I create a table with borders in Android?
...out to display data as table, but I want a table with user-defined columns and rows with borders. Suggestions?
18 Answers
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Can table columns with a Foreign Key be NULL?
... you can clearly indicate that this row is not to be used as a normal row, and can use the row as a way of providing a sort of dynamic default value for other rows.
– Ouroborus
Feb 21 '17 at 17:57
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Facebook access token server-side validation for iPhone app
...developing iPhone application, that is based on communication with server, and I want to use Facebook authentication mechanisms.
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How to create a date and time picker in Android? [closed]
Is there any android widget that enable to pick the date and the time at the same time ?
I already use the basic time picker and date picker .
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SQL - Update multiple records in one query
...e syntax
UPDATE config t1 JOIN config t2
ON t1.config_name = 'name1' AND t2.config_name = 'name2'
SET t1.config_value = 'value',
t2.config_value = 'value2';
Here is SQLFiddle demo
or conditional update
UPDATE config
SET config_value = CASE config_name
WH...
How to set the id attribute of a HTML element dynamically with angularjs (1.x)?
...alue of its id attribute, which is the concatenation of a scope variable and a string ?
7 Answers
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Web API Routing - api/{controller}/{action}/{id} “dysfunctions” api/{controller}/{id}
...it. Once it gets the first matched rule, it will stop checking other rules and take this to search for controller and action.
So, you should:
Put your specific rules ahead of your general rules(like default), which means use RouteTable.Routes.MapHttpRoute to map "WithActionApi" first, then "Def...