Simple form examples with bootstrap

You can improve your LIKE / ILIKE search queries in PostgreSQL by adding a GIN index with an operate class ("opclass") to split the [words into trigr...

Usually you add errors to :base in ActiveRecord, in case no appropriate attribute could be used to add the error.

Simple Form...

Most forms have a single submit button that will save the record when pressed.

Sometimes a form needs additional submit buttons like "accept" or "reject". Such buttons usually attempt a state transition while updating the record.

To process a fo...

In theory you can take any scope and extend it with additional joins or conditions. We call this chaining scopes.

In practice chaining becomes problematic when scope chains grow more complex. In particular **having JOINs in your scope will re...

tl;dr

• Use form models to handle this problem
• Or soften the validation to validates_presence_of :parent

Usually you would validate presence of parent object id, like in this example:

class Parent < ActiveRecord::Base
  has_many ...

For example, to send a form and populate a preview div with the response.

$('content_form').request({
  parameters: { 'preview': "1" }, // overrides parameters
  onComplete: function(transport){ 
    $('previewContent').update(tra...

To use a form model with devise, you can simply override #resource_class in a controller. A typical use case would be the registrations controller, as users will need some fields only on sign-up. Example:

class Frontend::Authentication::R...

The step definition below lets you say:

 Then I should see a field "Password"
 But I should not see a field "Role"

Here is the step definition:

Then /^I should( not)? see a field "([^"]*)"$/ do |negate, name|
  expectation = neg...