Skip to main content

Rails : Where to put what

I'm trying to clean up Rriki. Yes, this is procrastination and I should do my research, but clean code looks soooo nice !

Any way, I'm trying to program the rails way (some mumbo jumbo about MVC and DRY). For Rriki's 'sources' (storage for research articles, books etc.) I have a certain amount of processing that I have to do - I export the table data to BibTeX so I can use it with LaTeX, I import publication data from pubmed, and I write to auxiliary databases such as for bibus.

Currently code for this is placed in the model, in the controller and in sources_helper. But I have learned that this is not the true way. The proper coding etiquette is as follows
  1. Thin controllers : put as much of your logic in the model as possible and keep the controller slim and trim. Ideally, you should be able to glance at a controller method and figure out what information it grabs. [Jamis Buck]
  2. Fat models : Most of the logic will be about fetching, manipulating and parsing model data. So this IS the model's business.
  3. Use layouts : its a bit like css for rhtml
  4. Slim views : resist the temptation to write ruby code in rhtml - use a helper
  5. Fat helpers : move involved view code from views and controllers into helpers
Also see what goes where [Slash7].

Comments

Popular posts from this blog

Flowing text in inkscape (Poster making)

You can flow text into arbitrary shapes in inkscape. (From a hint here).

You simply create a text box, type your text into it, create a frame with some drawing tool, select both the text box and the frame (click and shift) and then go to text->flow into frame.

UPDATE:

The omnipresent anonymous asked:
Trying to enter sentence so that text forms the number three...any ideas?
The solution:
Type '3' using the text toolConvert to path using object->pathSize as necessaryRemove fillUngroupType in actual text in new text boxSelect the text and the '3' pathFlow the text

Pandas panel = collection of tables/data frames aligned by index and column

Pandas panel provides a nice way to collect related data frames together while maintaining correspondence between the index and column values:


import pandas as pd, pylab #Full dimensions of a slice of our panel index = ['1','2','3','4'] #major_index columns = ['a','b','c'] #minor_index df = pd.DataFrame(pylab.randn(4,3),columns=columns,index=index) #A full slice of the panel df2 = pd.DataFrame(pylab.randn(3,2),columns=['a','c'],index=['1','3','4']) #A partial slice df3 = pd.DataFrame(pylab.randn(2,2),columns=['a','b'],index=['2','4']) #Another partial slice df4 = pd.DataFrame(pylab.randn(2,2),columns=['d','e'],index=['5','6']) #Partial slice with a new column and index pn = pd.Panel({'A': df}) pn['B'] = df2 pn['C'] = df3 pn['D'] = df4 for key in pn.items: print pn[key] -> output …

Drawing circles using matplotlib

Use the pylab.Circle command

import pylab #Imports matplotlib and a host of other useful modules cir1 = pylab.Circle((0,0), radius=0.75, fc='y') #Creates a patch that looks like a circle (fc= face color) cir2 = pylab.Circle((.5,.5), radius=0.25, alpha =.2, fc='b') #Repeat (alpha=.2 means make it very translucent) ax = pylab.axes(aspect=1) #Creates empty axes (aspect=1 means scale things so that circles look like circles) ax.add_patch(cir1) #Grab the current axes, add the patch to it ax.add_patch(cir2) #Repeat pylab.show()