Class: Contentful::Importer::ContentfulModelToJson

Inherits:
Object
  • Object
show all
Defined in:
lib/contentful/importer/converters/contentful_model_to_json.rb

Constant Summary collapse

FIELD_TYPE = 
%w( Link Array )

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(settings) ⇒ ContentfulModelToJson

Returns a new instance of ContentfulModelToJson.



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 10

def initialize(settings)
  @config = settings
  @logger = Logger.new(STDOUT)
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 6

def config
  @config
end

#content_types ⇒ Object (readonly)

Returns the value of attribute content_types.



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 6

def content_types
  @content_types
end

#converted_model_dir ⇒ Object (readonly)

Returns the value of attribute converted_model_dir.



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 6

def converted_model_dir
  @converted_model_dir
end

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 6

def logger
  @logger
end

Instance Method Details

#content_type_name(content_type) ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 69

def content_type_name(content_type)
  I18n.transliterate(content_type).underscore.tr(' ', '_')
end

#convert_to_import_form ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 26

def convert_to_import_form
  set_content_model_parameters
  logger.info 'Converting Contentful model to Contentful import structure...'
  File.open(converted_model_dir, 'w') { |file| file.write({}) }
  content_type_file = JSON.parse(File.read(content_types))['items']
  content_type_file.each do |content_type|
    parsed_content_type = {
        id: content_type['sys']['id'],
        name: content_type['name'],
        description: content_type['description'],
        displayField: content_type['displayField'],
        fields: create_content_type_fields(content_type)
    }
    import_form = JSON.parse(File.read(converted_model_dir))
    File.open(converted_model_dir, 'w') do |file|
      file.write(JSON.pretty_generate(import_form.merge!(content_type['name'] => parsed_content_type)))
    end
  end
  logger.info "Done! Contentful import structure file saved in #{converted_model_dir}"
end

#create_content_type_fields(content_type) ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 47

def create_content_type_fields(content_type)
  content_type['fields'].each_with_object({}) do |(field, _value), results|
    id = link_id(field)
    results[id] = case field['type']
                    when 'Link'
                      {id: field['id'], type: field['linkType'], link: 'Link'}
                    when 'Array'
                      {id: field['id'], type: field['type'], link_type: field['items']['linkType'], link: field['items']['type']}
                    else
                      field['type']
                  end
  end
end

#create_content_type_json ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 15

def create_content_type_json
  contentful_structure = load_contentful_structure_file
  logger.info 'Create JSON files with content types structure...'
  contentful_structure.each do |content_type, values|
    content_type_name = content_type_name(content_type)
    create_directory(config.collections_dir)
    ContentTypesStructureCreator.new(config).create_content_type_json_file(content_type_name, values)
  end
  logger.info 'Done!'
end

#create_directory(path) ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 73

def create_directory(path)
  FileUtils.mkdir_p(path) unless File.directory?(path)
end

#create_empty_contentful_structure_file ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 88

def create_empty_contentful_structure_file
  File.open(config.config['contentful_structure_dir'], 'w') { |file| file.write({}) }
  load_existing_contentful_structure_file
end

#file_exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 84

def file_exists?
  File.exists?(config.config['contentful_structure_dir'])
end

#link_id(field) ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 61

def link_id(field)
  if FIELD_TYPE.include? field['type']
    field['name'].capitalize
  else
    field['id']
  end
end

#load_contentful_structure_file ⇒ Object

If contentful_structure JSON file exists, it will load the file. If not, it will automatically create an empty file. This file is required to convert contentful model to contentful import structure.



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 79

def load_contentful_structure_file
  fail ArgumentError, 'Set PATH for contentful structure JSON file. View README' if config.config['contentful_structure_dir'].nil?
  file_exists? ? load_existing_contentful_structure_file : create_empty_contentful_structure_file
end

#load_existing_contentful_structure_file ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 93

def load_existing_contentful_structure_file
  JSON.parse(File.read(config.config['contentful_structure_dir']), symbolize_names: true).with_indifferent_access
end

#set_content_model_parameters ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 97

def set_content_model_parameters
  validate_content_model_files
  @converted_model_dir = config.config['converted_model_dir']
  @content_types = config.config['content_model_json']
end

#validate_content_model_files ⇒ Object 



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# File 'lib/contentful/importer/converters/contentful_model_to_json.rb', line 103

def validate_content_model_files
  fail ArgumentError, 'Set PATH for content model JSON file. View README' if config.config['content_model_json'].nil?
  fail ArgumentError, 'Set PATH where converted content model file will be saved. View README' if config.config['converted_model_dir'].nil?
end