eezis

What are the "rules" or guidelines for using ' vs " in Elixir?

iex> l1 =['test']
['test']
iex> l2 = ['test']
['test']
iex> l1 == l2
true
iex> l3 = ["test"]
["test"]

eezis

defmodule MyPlug do
  import Plug.Connection

  def init(options) do
    # initialize options

    options
  end

  def call(conn, _opts) do

eezis

10.29.14

I was following this tutorial: http://www.elixirdose.com/post/lets-build-web-app-with-phoenix-and-ecto

Could not mix compile

	==> postgrex
	warning: the dependency postgrex requires Elixir "0.15.0" but you are running on v1.0.1
	Compiled lib/postgrex/binary_utils.ex
	Compiled lib/postgrex/error.ex

eezis

Are templates scoped to a controller by naming convention? And is that convention two layers deep 
and implemented with filenames?

First convention describes rules for a controller's filename; stipulating that Controller filenames
get two parts seperated by
an underscore. An application with these three controllers -- PageController, HelloController, and 
UserController -- should manifest the following file names:

controllers
  |- page_controller.ex

eezis

To find the proper cfbundlerid when writing an appmethod or firemonkey delphi application, go to the tools/options/provisioning

Then select the build type and provisioning file, then the developer certificate.

That will show the "Applicateion Identifier" it will look like:

S3AB5SSYN.com.domain.appname 

Put that in the CFBUNDLER in the project/option/versioninfo

eezis

#1. nano ~/.bash_profile
#2. add these two lines

bind '"\e[A": history-search-backward'
bind '"\e[B": history-search-forward'

eezis

I have this framed out and working but I wanted to post this question to see how more experienced Django developers would approach this problem.  So to use a simple domain
that everyone can understand, I will frame this as a simple reporting page on a web site where an investor wants to view different classes of assets (stocks, bonds, cds,
etc). I only show three instrument types but like any project it could grow to many more over the project life cycle.

Given the following models . . .

class Investor(models.Model):
	first = models.CharField()
	blah = models.CharField()
	blan = models.CharField()

eezis

find: ^\n  <- select the far left button that toggles regex [.*]
replace: <p>\n

tags: Sublime Text 2, find blank lines, replace blank lines

eezis

##Clone or Copy a virtualenv##



The virtualenvwrapper documentation declares that its feature set includes "Wrappers for managing your virtual environments (create, delete, copy)."  But I could not find the copy command anywhere. After fruitless for the command I figred that well designed software usually has a predictable answer:

    $cpvirtualenv Env1 Env2

So that's the ticket.  Where Env1 is your existing venv and Env2 is the new one you wish to start.  So I riff off of Patrick Altman's handy [setup instructions] for new Django projects to create a local stub (where I have swapped in the dev release of Django 1.5) and add utilities like South. Starting new projects is now as simple as . . .

eezis

This is a contrived example that illustrates my problem.  I want to subclass a base class (PersonBase) 
into several different descendant classes.  Each person type can have multiple emails and phone numbers

The email and phone class should have a 1..n relationship to all the different people subclasses.

I thought could structure this as follows, but the FK cannot be created on the abstract base class.  What 
is the best practice for solving this situation . . . instantiate that base model instead of making it 
abstract?  Or try to implement GenericForeignKeys, or do they introduce more problems than they solve?  
Here's the problem in pseudocode . . .