PabloVallejo

// Import all Java utils.
import java.util.*;

// Improt java lang.
import java.lang.*;



// Excercises.
public class App {

PabloVallejo

# Assigning multiple attributes to an object at once.
@thing.assign_attributes(
    :created_by => current_user,
    :period_template => period_template
)

PabloVallejo

# Resource without certain actions.
resources :users, :except => :show


# Specify routes and add new ones.
resources :sessions, :only => [:new, :create, :destroy] do
  get :recovery, :on => :member
end

PabloVallejo

# Ordering records in descending order
User.order(email: :desc)

PabloVallejo

#
# Configure permitted parameters for a devise action.
# This can be done in several ways on which this two are 
# the most used.
#
def configure_permitted_parameters
  
  # Usign a `do` block.
  devise_parameter_sanitizer.for(:sign_up) do |u|
    u.permit(:name, :heard_how,

PabloVallejo

# Autoload `lib` directory.
# Inside config/application.rb
config.autoload_paths << Rails.root.join('lib')

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# Adding  a column to users model. 
rails g migration add_email_to_users email:string

# Reverting a migration.
rake db:migrate:down VERSION=3846656238

# Drop a table.
rails g migration DropProducts

PabloVallejo

<snippet>
    <content><![CDATA[base(this, '${1:method}'${2});${0}]]></content>
    <tabTrigger>base</tabTrigger>
    <scope>source.js</scope>
    <description>Base method call</description>
</snippet>

PabloVallejo

# views.py
class UserProfileUpdate(LoginRequiredMixin, UpdateView):
    
    # ...

    # Pass current user to form through `initial`
    def get_form_kwargs(self, **kwargs):
        kwargs = super(UserProfileUpdate, self).get_form_kwargs(**kwargs)
        kwargs['initial']['user']=self.request.user
        return kwargs

PabloVallejo

# -*- coding: utf-8 -*-
from django import forms

from crispy_forms.helper import FormHelper
from crispy_forms.layout import Layout, Div, Submit, HTML, Button, Row, Field
from crispy_forms.bootstrap import AppendedText, PrependedText, FormActions


class MessageForm(forms.Form):
    text_input = forms.CharField()