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How do you manually execute SQL commands in Ruby On Rails using NuoDB
...e_statement(sql)
results = ActiveRecord::Base.connection.execute(sql)
if results.present?
return results
else
return nil
end
end
Using execute_statement will return the records found and if there is none, it will return nil.
This way I can just call it anywhere on the rails appli...
What's the meaning of Base SDK, iOS deployment target, Target, and Project in xcode
... deployment target, except that base sdk >= deployment target.
You specify build settings on 2 levels as each project can have multiple targets and you might not want the same settings for all targets. The project-level settings override the default settings and the target-level settings overri...
Check if inputs are empty using jQuery
I have a form that I would like all fields to be filled in. If a field is clicked into and then not filled out, I would like to display a red background.
...
How to remove specific element from an array using python
I want to write something that removes a specific element from an array. I know that I have to for loop through the array to find the element that matches the content.
...
How to save username and password with Mercurial?
...me = foo
bb.password = foo_passwd
The ‘bb’ part is an arbitrary identifier and is used to match prefix with username and password - handy for managing different username/password combos with different sites (prefix)
You can also only specify the user name, then you will just have to type your...
Java “params” in method signature?
In C#, if you want a method to have an indeterminate number of parameters, you can make the final 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 of that type as the caller wants.
...
Sort array of objects by single key with date value
...ated_at),
keyB = new Date(b.updated_at);
// Compare the 2 dates
if (keyA < keyB) return -1;
if (keyA > keyB) return 1;
return 0;
});
console.log(arr);
share
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improv...
How do I get the color from a hexadecimal color code using .NET?
...It's probably easier to use the Color.FromArgb method in this case though. If you use floating point alpha, you'd have to multiply by 255.
– Thorarin
Apr 18 '14 at 18:20
2
...
sometimes my file just freezes in my vi |vim, what happened?
Sometimes when I edit my file using vi or vim, my file just freezes. Even if I type Ctrl+C or Ctrl+D , it still freezes there. I kill -9 <pid> from another terminal, the pid is killed, but the file still freezes there.
...
How to do SELECT COUNT(*) GROUP BY and ORDER BY in Django?
...('actor').annotate(total=Count('actor')).order_by('total')
values() : specifies which columns are going to be used to "group by"
Django docs:
"When a values() clause is used to constrain the columns that are
returned in the result set, the method for evaluating annotations is
slightly different. I...