IPython notebooks are an incredibly useful way to do reproducible research and illustrate chunks of code. Obviously you'd like to put some of them on the web. Surely there must be an easy way to include them in a Pelican-based website. So why hasn't anyone done it yet?
They have …
One of the big sells of Pelican is being able to use multiple markdup formats, being able to drop in notebooks and documents written in other contexts. One such format is RMarkdown (.rmd) documents, such as are used in knitr for reproducible analyses, allowing you to do an analysis and …
I try to avoid PHP as much as possible (just not my thing) but I'd installed a PHP-based webapp (REDCap) and there was something occuring that seemed like it should have generated an error. However I could not find any PHP errors logged anywhere on the machine. So …
Way, way back, this site ran on various permutations of PHP-based frameworks. Getting sick of ugly URLs and having to vigilantly update the software so as to avoid hacks (and still periodically falling victim to various hacks), I went in search of a Python-based framework that I could customize …
I'll stick with LaTeX, thank you very much. Which is poking yourself in the eye with a tool perfectly designed for eye-poking after you get the configuration right, but the tool can't be held by human hands so you also need a pneumatic dingus to poke the poker and a …
This is not as straightforward as it seems.
In development, it works fine. Simply declare that the model has an attachment:
class Download < ActiveRecord::Base
...
has_attached_file :attachment
and stuff will work automagically. A directory “system” will be created in your public folder and the attachments will be created in there …
Django's form generation machinery for the most part is fine and straightforward, but on a recent project I ran into problems with a form that accepted files. The documentation is all there, but changes in how things work and an emphasis on forms for models make things harder to understand …
RMagick is necessary for a lot of Ruby packages, so the restrictions on using it are critical (and very annoying). Here are the constraints on what can be used where:
| Ruby 1.8 | RMagick 1 | RMagick 1 |
| Ruby 1.9 | RMagick 2 |
Or to put it another way: if you …
In which I discover things, sometimes painfully.
Unless otherwise stated, done using Ruby 1.9.2, Hobo 1.0.3 (and hence Rails 2.3.10):
It seems that permissions in Hobo can be a little tricky, in so much as I've had a case where something that behaved …
Hobo is a nifty thing, a better Rails than Rails, but there are a number of small roadbumps to getting a project started. This is a list of one possible way through the maze.
So I was writing a web application using WSGI and - after working for a long time - it started erroring out with:
AssertionError: write() argument must be string
from deep inside the WSGI handler. Now, this usually means that you're returning unicode, which WSGI can't handle. However, it's quite happy to …
jsPhyloSVG (or JPS from this point) is a nifty Javascript library for displaying phylogenetic trees in your browser. It can:
Ah, archetypes. How I adore thee. Other ways of constructing Plone content are as nothing before me. You are quick to develop, flexible in your approach, sensible in your defaults. But cryptic in your errors.
A lesson or two on breaking archetypes: First, not all fields accept all widgets …
How do you give a user a new password? Well, in the "User & Groups" control panel, you select reset password for them. What if they've lost or changed their email address? In the same place, set the new one. What if "that doesn't work"? You can assign them a new …
One of Plone's marked faults has been the lack of an out-of-the-box RSS aggregation product. Although there have been a number of attempts (CMFSin, CMFNewsFeed, CMFFeed), these are unfinished, quirky or only semi-functional. Fortunately, PloneRSS is a robust solution for gathering and publishing newsfeeds on your site. Unfortunately, installation is …
Whenever I get a cryptic error from Plone (which is all too frequently), I google to see if anyone else has it. This is me paying back into the system.
After fiddling with the schema on a type, adding it then failed …
Note
This library was developed for personal use during the bad old days of Plone development around version 2.5. It almost certainly does not work with Plone 3+ and is kept here for historical interest.
This library originated from a desire to do away with the large amount …
Try embedding something like this in your code:
<dl class="collapsible inline collapsedOnLoad"> <dt class="collapsibleHeader">Title</dt> <dd class="collapsibleContent"> <span tal:replace="structure python: here.printRequest(request, errors)"/> </dd> </dl>
and supply the necessary printRequest somewhere in your code or as a script:
def printRequest (self, request, errors …
How do you get a Plone theme to uninstall and restore viewlets to the usual way. That is the mystery ...
In a theme I recently built, I moved or hid several viewlets around for artistic effect. The problem didn't show itself until I uninstalled the theme. The viewlets …
While developing a series of forms using CMFFormController, suddenly one of the components couldn't be found.
To recap (and serve as an example to those neophytes), CMFFormController structures your forms as a series of form templates or scripts with metadata files determining how execution moves between them. In this …
The process of upgrading a Plone site can be intricate. The 2.0.x to 2.1.x jump is no different. (Anyone who has followed the series of quirks and bugs in Agapow.net over the early part of 2006 will have seen the evidence.) While you could just …