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How to do 3 table JOIN in UPDATE query?
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Weird thing is however that my HeidiSQL software reports zero affected rows, although the data shows the updates were done.
– Pianoman
Feb 1 '16 at 8:06
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Change default primary key in Eloquent
...Yes
class User extends Eloquent {
protected $primaryKey = 'admin_id';
}
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How do I associate a Vagrant project directory with an existing VirtualBox VM?
...".vagrant" file in the same directory as your "Vagrantfile" to track the UUID of your VM. This file will not exist if a VM does not exist. The format of the file is JSON. It looks like this if a single VM exists:
{
"active":{
"default":"02f8b71c-75c6-4f33-a161-0f46a0665ab6"
}
}
defaul...
for each loop in Objective-C for accessing NSMutable dictionary
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for (NSString* key in xyz) {
id value = xyz[key];
// do stuff
}
This works for every class that conforms to the NSFastEnumeration protocol (available on 10.5+ and iOS), though NSDictionary is one of the few collections which lets you enumerate keys...
How to differ sessions in browser-tabs?
...e HTML5 SessionStorage (window.sessionStorage). You will generate a random id and save in session Storage per Browser Tab.
Then each browser tab has his own Id.
Data stored using sessionStorage do not persist across browser tabs,
even if two tabs both contain webpages from the same domain ori...
Is Ruby pass by reference or by value?
...variables of the clone still point to the same objects that the originals did. If the objects referenced by the ivars mutate, that will still show up in the copy, since it's referencing the same objects.)
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How to get values from IGrouping
...umerable<IGrouping<int, smth>> groups = list.GroupBy(x => x.id);
IEnumerable<smth> smths = groups.SelectMany(group => group);
List<smth> newList = smths.ToList();
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Eager load polymorphic
...: true
# For Rails < 4
belongs_to :shop, foreign_key: 'reviewable_id', conditions: "reviews.reviewable_type = 'Shop'"
# For Rails >= 4
belongs_to :shop, -> { where(reviews: {reviewable_type: 'Shop'}) }, foreign_key: 'reviewable_id'
# Ensure review.shop returns nil unless revi...
Count characters in textarea
... };
</script>
</head>
<body>
<textarea id="field" onkeyup="countChar(this)"></textarea>
<div id="charNum"></div>
</body>
</html>
... works fine for me.
Edit: You should probably clear the charNum div, or write something, ...
Styling an input type=“file” button
...the input will not respond to the likes of:
<input type="file" style="width:200px">
Instead, you will need to use the size attribute:
<input type="file" size="60" />
For any styling more sophisticated than that (e.g. changing the look of the browse button) you will need to look at ...