module TheMerger

Constants

VERSION

Public Instance Methods

field_selection() click to toggle source

View Helper method (Optional)

Selection box with fields from your model and an insert button

# File lib/the_merger.rb, line 58
def field_selection
  body = select_tag :field, options_for_select(fields)
  body += button_tag "Insert", class: "insert_field"
  content_tag(:div, body, class: "merge_field")
end

fields() click to toggle source

Return all the fields from your configured model except created_at, updated_at & id

# File lib/the_merger.rb, line 67
def fields
  model.attribute_names.reject{|x| %w[created_at updated_at id].include?(x)}
end

mail_merge(opts={}) click to toggle source

Merge the fields into the body and send emails

Options;

from
subject
body
group  (optional subset of users)
single (optional single user)

# File lib/the_merger.rb, line 20
def mail_merge(opts={})

  # Go through and get the collection to merge & send.
  if opts[:group]               # Subset
    results = opts[:group]
  elsif opts[:single]           # Single
    results = [opts[:single]]
  else                          # ALL entries in model
    results = model.all
  end
  
  # Go through all results, merge & send.
  results.each {|user| merge_and_send(opts[:from], opts[:subject], opts[:body].dup, user)}
end

merge_and_send(from,subject,body,user) click to toggle source

# File lib/the_merger.rb, line 35
def merge_and_send(from,subject,body,user)
  # Merge fields for this user into the body
  body = merge_fields(body, user)
  
  # Send the emails
  TheMerger::Mailer.batch_mail(from, subject, body, user).deliver
end

merge_fields(body,user) click to toggle source

Replace fields which are in square brackets with data from the chosen model.

# File lib/the_merger.rb, line 46
def merge_fields(body,user)
  fields.each do |field|
    body = body.gsub!("[#{field}]", user.send(field).to_s) || body
  end
  body
end

Private Instance Methods

model() click to toggle source

# File lib/the_merger.rb, line 73
def model
  if File.exists?(path = "#{Rails.root}/config/the_merger.yml")
    conf=YAML::load(IO.read(path))
    conf["merge_model"].constantize
  else
    User
  end
end