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How to select where ID in Array Rails ActiveRecord without exception
When I have array of ids, like
6 Answers
6
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How do I flush the PRINT buffer in TSQL?
...es you a simple FLUSH in the form of raising empty error (at the cost of a newline).
– Tomasz Gandor
Nov 18 '19 at 6:26
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Make a link use POST instead of GET
..., use javascript to simulate the post. This does 2 things : post data to a new page and open it in a new window/tab.
HTML
<form name='myForm' target="_blank" action='newpage.html' method='post'>
<input type="hidden" name="thisIsTheParameterName" value="testDataToBePosted"/>
</form&g...
Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0
...your deployment target is set to 7.1. This is completely reproducible with new single-view project.
Steps to Reproduce:
Create a new single-view, objective-c project
Set the Deployment Target to 7.1
Open the project's storyboard
Drop a label onto the provided view controller
Set the numberOfLine...
Should I use `this` or `$scope`?
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I think we first need to understand the new "UserCtrl as uCtrl" syntax before we can say which we think is better.
– Mark Rajcok
May 18 '13 at 4:16
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Delete a key from a MongoDB document using Mongoose
...s. So you can do the action in question by this:
User.collection.update({_id: user._id}, {$unset: {field: 1 }});
Since version 2.0 you can do:
User.update({_id: user._id}, {$unset: {field: 1 }}, callback);
And since version 2.4, if you have an instance of a model already you can do:
doc.field...
Convert timestamp to date in MySQL query
...SQL
Make the table with an integer timestamp:
mysql> create table foo(id INT, mytimestamp INT(11));
Query OK, 0 rows affected (0.02 sec)
Insert some values
mysql> insert into foo values(1, 1381262848);
Query OK, 1 row affected (0.01 sec)
Take a look
mysql> select * from foo;
+------...
Laravel Eloquent Sum of relation's column
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f21679678%2flaravel-eloquent-sum-of-relations-column%23new-answer', 'question_page');
}
);
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Using an integer as a key in an associative array in JavaScript
When I create a new JavaScript array, and use an integer as a key, each element of that array up to the integer is created as undefined.
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Creating a copy of an object in C# [duplicate]
... return this.MemberwiseClone();
}
}
then you can do
myClass a = new myClass();
myClass b = (myClass)a.Clone();
N.B. MemberwiseClone() Creates a shallow copy of the current System.Object.
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