README

This README would normally document whatever steps are necessary to get the application up and running.

Things you may want to cover:

Ruby version
System dependencies
Configuration
Database creation
Database initialization
How to run the test suite
Services (job queues, cache servers, search engines, etc.)
Deployment instructions
...

create project

rails new blogger -d mysql

create models with migrations

rails g model User name:string email:string password_digest:string

the above command generate a model User and also a migartion file with fields name,email and password_digest .
for create table we have to migrate database.

rake db:migrate

create database entries using seeds

seeds are use for create entries in database. for enteries we have to create a seed which tends to a perticular class with activerecods. for example

User.create(
		:name = "name",
		:email = "email@example.com",
		:password_digest = "password"
	)

for create enter use the bellow command

rake db:seed

Routes

get 'profile', to: 'pages#show' # it means  /profile is the route which redirect to pages#show page

install packges

install bootstarp-sass => add package in gem file with version.

gem 'bootstrap-sass', '~> 3.3.5'
gem 'bcrypt', '~> 3.1.7'

it was looking for 3.3.o version than we have to bundle install for update dependencies.

Errors

ActiveRecord::NoDatabaseError => this is due to database isn't found. for create database use the command mentioned below.

rake db:create

the above command create database

debugging

abort checkemail.inspect

figaro

it allows us to use env varieables for install it .

bundle exec figaro install

Send Mail using Mailer

step1 Directory config/enviroments/development.rb and config.action_mailer.raise_delivery_errors = false change this to true.
step2 Append code at the end of the file.

 config.action_mailer.delivery_method = :smtp  # this tells thats we are using smtp for set mails

# this is the basic configuration for mail send via smtp
 config.action_mailer.smtp_settings = {
     address:              'smtp.gmail.com',
     port:                 587,
     domain:               'example.com',
     user_name:             ENV['gmail_username'], # these are set as enviroment variables
     password:              ENV['gmail_password'],
     authentication:       'plain'
  }

 config.action_mailer.default_url_options = {host: "localhost:3000"}

step3 Create rails mailer

rails g mailer <mailer_name>  <method_name>

It creates some files

Image Upload using active storage

 rails active_storage:install

It create a migration file

  rails db:migrate

set relationship in models

	has_one_attached:image

Add file field in our form

<div class="form-group" >
  <%= label_tag :image %>
  <%= f.file_field :image , class: "form-conmtrol"  %>
</div>

set permission for image in Controller

	params.require(:user).permit(:name,:email,:password,:im age)

preview Image

image_tag obj.image

migration

add field to existing table

rails generate migration add_fieldname_to_tablename fieldname:string

rake db:migrate

vaibhavbuccha/Blogger_App_rails