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If string is empty then return some default value
... with a model. If you wanted a reasonable default value everywhere in your app, you could (for example) override the address method for your User model.
I don't know ActiveRecord well enough to provide good code for this; in Sequel it would be something like:
class User < Sequel::Model
def ad...
How to Apply Corner Radius to LinearLayout
I want to make a layout with a rounded border. How can I apply a radius of a particular size in a LinearLayout ?
4 Answers...
Is there a zip-like function that pads to longest length in Python?
...code works. Or why it is the right answer
– Suit Boy Apps
Oct 12 '19 at 3:19
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Tell Ruby Program to Wait some amount of time
...e can be an integer or float.
Also, if you're writing this within a Rails app, or have included the ActiveSupport library in your project, you can construct longer intervals using the following convenience syntax:
sleep(4.minutes)
# or, even longer...
sleep(2.hours); sleep(3.days) # etc., etc.
# o...
How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?
...u Server Edition?
Recent Ubuntu Server Editions (such as 10.04) ship with AppArmor and MySQL's profile might be in enforcing mode by default. You can check this by executing sudo aa-status like so:
# sudo aa-status
5 profiles are loaded.
5 profiles are in enforce mode.
/usr/lib/connman/scripts/...
How can I see the raw SQL queries Django is running?
... and the parameters separately to the database adapter, which performs the appropriate operations."
From Django bug report #17741.
Because of that, you should not send query output directly to a database.
share
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No secret option provided to Rack::Session::Cookie warning?
...e/session/abstract_store.rb
module Compatibility
def initialize(app, options = {})
options[:key] ||= '_session_id'
#fixed warning - SECURITY WARNING: No secret option provided to Rack::Session::Cookie.
options[:secret] ||= Rails.application.config.s...
How can I update a single row in a ListView?
...
what would happen if i just call getView() on the adapter only if the position is between getFirstVisiblePosition() and getLastVisiblePosition() ? would it work the same? i think it will update the view as usual, right?
...
What is Prism for WPF?
...soft Patterns and Practices Team official guidance for building "composite applications" in WPF and Silverlight.
Its intended to provide guidance on the best practices for building large scale applications which are flexible in terms of development and maintainability.
This includes guidance on de...
How to install Xcode Command Line Tools
...o longer available through Xcode. Instead they must be downloaded from the Apple Developer Tools site: https://developer.apple.com/downloads/index.action. This requires signing in with a developer account.
Or via terminal (from the release docs): The Command Line Developer Tools package can be inst...