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Validate uniqueness o<em>fem> multiple columns
Is there a rails-way way to validate that an actual record is unique and not just a column? <em>Fem>or example, a <em>fem>riendship model / table should not be able to have multiple identical records like:
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How to create NSIndexPath <em>fem>or TableView
I need delete row 1 o<em>fem> a table in a <em>fem>unction I have de<em>fem>ined. In order to use deleteRowAtIndexPath you must use an IndexPath with a section and row de<em>fem>ined. How can I create an indexpath like this?
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python re.sub group: number a<em>fem>ter \number
How can I replace <em>fem>oobar with <em>fem>oo123bar ?
1 Answer
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How to copy in bash all directory and <em>fem>iles recursive?
I have script:
2 Answers
2
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How to use greater than operator with date?
No idea what is going on here. Here is the query, right <em>fem>rom phpMyAdmin:
5 Answers
5
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Sending and Parsing JSON Objects in Android [closed]
I would like to send messages in the <em>fem>orm o<em>fem> JSON objects to a server and parse the JSON response <em>fem>rom the server.
11 Answe...
How to remove debugging <em>fem>rom an Express app?
I would like to remove the debugging mode. I am using express , redis , socket.io and connect-redis , but I do not know where the debugging mode comes <em>fem>rom.
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What GUI libraries are the JetBrains using?
I am somewhat new to Java and am enjoying using IntelliJ IDE developed by the JetBrains team.
1 Answer
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Java “params” in method signature?
In C#, i<em>fem> you want a method to have an indeterminate number o<em>fem> parameters, you can make the <em>fem>inal parameter in the method signature a params so that the method parameter looks like an array but allows everyone using the method to pass as many parameters o<em>fem> that type as the caller wants.
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