How to Fix xcrun: error: unable to find utility "instruments", not a developer tool or in PATH
I just got a new machine and downloaded XCode. I used git to clone my ReactNative project from Github. I have everything ready to go. But when I run `react-native run-ios` I see
xcrun: error: unable to find utility "instruments", not a developer tool ...
Written by Sean Behan on 03/05/2017
Get Child Categories of Parent Category on Single Post in Wordpress
I was hoping to find a function in the Wordpress API, that goes something like this...
the_child_categories("Vermont");
// print Burlington, Brattleboro... etc if this post has any child categories of Vermont
But I could not. The result that I did ...
Written by Sean Behan on 06/17/2012
Reusing Scopes (Formerly Named_scope) In Rails 3
You can easily chain scopes together in your models.
class Article < ActiveRecord::Base
scope :ordered, order('position ASC')
scope :published, ordered.where('published = ?', true)
scope :for_homepage, published.limit(3)
end
Article.for_homepage...
Written by Sean Behan on 06/17/2012
How To Remove Duplicates From a Table with Postgres
Let's create a table that will hold some dummy data.
> create table fruits (id serial primary key, name varchar, color varchar);
> insert into fruits (name, color) values ('apple', 'red');
> insert into fruits (name, color) values ('ap...
Written by Sean Behan on 10/08/2013
Active Record Find Methods
Active Record find methods for selecting range from http://charlesmaxwood.com/notes-from-reading-activerecordbase/
Student.find(:all, :conditions => { :grade => 9..12 })
return a range
Student.find(:all, :conditions => { :grade => [9,11,12] })
will retu...
Written by Sean Behan on 06/17/2012
