| # Thanks to Ethan Jucovy | |
| # http://www.coactivate.org/projects/ejucovy/blog/2014/05/10/wagtail-notes-managing-redirects-as-pages/ | |
| # This model comes from wagtaildemo | |
| class LinkFields(models.Model): | |
| link_external = models.URLField("External link", blank=True) | |
| link_page = models.ForeignKey( | |
| 'wagtailcore.Page', | |
| null=True, |
This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.
Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:
getTweetsFor("domenic", function (err, results) {
// the rest of your code goes here.
| # ipak function: install and load multiple R packages. | |
| # check to see if packages are installed. Install them if they are not, then load them into the R session. | |
| ipak <- function(pkg){ | |
| new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])] | |
| if (length(new.pkg)) | |
| install.packages(new.pkg, dependencies = TRUE) | |
| sapply(pkg, require, character.only = TRUE) | |
| } |
| <?php | |
| // Use in the "Post-Receive URLs" section of your GitHub repo. | |
| if ( $_POST['payload'] ) { | |
| shell_exec( 'cd /srv/www/git-repo/ && git reset --hard HEAD && git pull' ); | |
| } | |
| ?>hi |