Class: DataShift::SpreeHelper::ImageLoader

Inherits:
DataShift::SpreeBaseLoader show all
Defined in:
lib/loaders/spree/image_loader.rb

Overview

Very specific Image Loading for existing Products in Spree.

Requirements : A CSV or Excel file which has 2+ columns

1)  Identifies a Product via Name or SKU column
2+) The full path(s) to the Images to attach to Product from column 1

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from DataShift::SpreeBaseLoader

#add_images

Constructor Details

#initialize(image = nil, options = {}) ⇒ ImageLoader

Returns a new instance of ImageLoader.



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# File 'lib/loaders/spree/image_loader.rb', line 21

def initialize(image = nil, options = {})
  
  super( DataShift::SpreeHelper::get_spree_class('Image'), true, image, options )
   
  unless(MethodDictionary.for?(@@product_klass))
    MethodDictionary.find_operators( @@product_klass )
    MethodDictionary.build_method_details( @@product_klass )
  end
  
  unless(MethodDictionary.for?(@@variant_klass))
    MethodDictionary.find_operators( @@variant_klass )
    MethodDictionary.build_method_details( @@variant_klass )
  end
    
  puts "Attachment Class is #{SpreeHelper::product_attachment_klazz}" if(@verbose)
end

Class Method Details

.acceptable_path_headers ⇒ Object 



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# File 'lib/loaders/spree/image_loader.rb', line 54

def self.acceptable_path_headers
  @@path_headers ||= ['attachment', 'images', 'path']
end

Instance Method Details

#perform_load(file_name, opts = {}) ⇒ Object 



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# File 'lib/loaders/spree/image_loader.rb', line 45

def perform_load( file_name, opts = {} )
  options = opts.dup
  
  # force inclusion means add headers to operator list even not present on Image
  options[:include_all] = true

  super(file_name, options)
end

#process ⇒ Object

Called from associated perform_xxxx_load



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# File 'lib/loaders/spree/image_loader.rb', line 60

def process()
  
  # TODO - current relies on correct order - i.e lookup column must come before attachment
  
  @@path_headers ||= ['attachment', 'images', 'path']
     
  operator = @current_method_detail.operator
  
  if(current_value && ImageLoader::acceptable_path_headers.include?(operator) )
   
    add_images( @load_object ) if(@load_object)
    
  elsif(current_value && @current_method_detail.operator )    
    
    # find the db record to assign our Image usually expect either SKU (Variant) or Name (product)
    if( MethodDictionary::find_method_detail_if_column(@@product_klass, operator) )
      @load_object = get_record_by(@@product_klass, operator, current_value)
      
    elsif( MethodDictionary::find_method_detail_if_column(@@variant_klass, operator) )
      puts "Find VARIANT with  #{operator} == #{current_value}"
      @load_object = get_record_by(@@variant_klass, operator, current_value)
    else
      raise "No Spree class can be searched for by #{operator}"
    end  
    
    unless(@load_object)
      puts "WARNING: Could not find a record where #{operator} == #{current_value}"
      return
    else
      puts "Image Attachment on record #{@load_object.inspect}"
    end
       
  end
  
end

#reset(object = nil) ⇒ Object

Load object not an Image - need to look it up via Name or SKU



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# File 'lib/loaders/spree/image_loader.rb', line 39

def reset( object = nil)
  super(object)
  
  @load_object = nil
end