Class: Jekyll::Contentful::Mappers::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/jekyll-contentful-data-import/mappers/base.rb

Overview

Base Mapper Class

Logic for mapping entries into simplified serialized representations

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(entry, config) ⇒ Base

Returns a new instance of Base.



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 25

def initialize(entry, config)
  @entry = entry
  @config = config
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 23

def config
  @config
end

#entry ⇒ Object (readonly)

Returns the value of attribute entry.



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 23

def entry
  @entry
end

Class Method Details

.mapper_for(entry, config) ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 11

def self.mapper_for(entry, config)
  ct = entry.content_type

  mapper_name = config.fetch(
    'content_types', {}
  ).fetch(
    ct.id, ::Jekyll::Contentful::Mappers::Base.to_s
  )

  Module.const_get(mapper_name).new(entry, config)
end

Instance Method Details

#map ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 40

def map
  result = { 'sys' => map_entry_metadata }

  fields = multiple_locales? ? entry.fields_with_locales : entry.fields

  fields.each do |k, v|
    name, value = map_field(k, v, multiple_locales?)
    result[name] = value
  end

  result
end

#map_array(array, locale) ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 148

def map_array(array, locale)
  array.map { |element| map_value(element, locale) }
end

#map_asset(asset, locale = nil) ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 105

def map_asset(asset, locale = nil)
  if locale
    file = asset.fields(locale)[:file]
    file_url = file.nil? ? '' : file.url

    return {
      'sys' => map_asset_metadata(asset),
      'title' => asset.fields(locale)[:title],
      'description' => asset.fields(locale)[:description],
      'url' => file_url
    }
  end

  file = asset.file
  file_url = file.nil? ? '' : file.url

  {
    'sys' => map_asset_metadata(asset),
    'title' => asset.title,
    'description' => asset.description,
    'url' => file_url
  }
end

#map_asset_metadata(asset) ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 97

def map_asset_metadata(asset)
  {
    'id' => asset.id,
    'created_at' => asset.sys.fetch(:created_at, nil),
    'updated_at' => asset.sys.fetch(:updated_at, nil)
  }
end

#map_entry(child) ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 129

def map_entry(child)
  self.class.mapper_for(child, config).map
end

#map_entry_metadata ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 30

def map_entry_metadata
  content_type = entry.sys.fetch(:content_type, nil)
  {
    'id' => entry.sys.fetch(:id, nil),
    'created_at' => entry.sys.fetch(:created_at, nil),
    'updated_at' => entry.sys.fetch(:updated_at, nil),
    'content_type_id' => content_type.nil? ? nil : content_type.id
  }
end

#map_field(field_name, field_value, multiple_locales = false) ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 57

def map_field(field_name, field_value, multiple_locales = false)
  value_mapping = nil

  if multiple_locales
    value_mapping = {}
    field_value.each do |locale, value|
      value_mapping[locale.to_s] = map_value(value, locale.to_s)
    end
  else
    value_mapping = map_value(field_value)
  end

  [field_name.to_s, value_mapping]
end

#map_link(link) ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 140

def map_link(link)
  {
    'sys' => {
      'id' => link.id
    }
  }
end

#map_location(location) ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 133

def map_location(location)
  {
    'lat' => location.latitude,
    'lon' => location.longitude
  }
end

#map_value(value, locale = nil) ⇒ Object 



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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 72

def map_value(value, locale = nil)
  case value
  when ::Contentful::Asset
    map_asset(value, locale)
  when ::Contentful::Location
    map_location(value)
  when ::Contentful::Link
    map_link(value)
  when ::Contentful::Entry
    map_entry(value)
  when ::Array
    map_array(value, locale)
  when ::Symbol
    value.to_s
  when ::Hash
    result = {}
    value.each do |k, v|
      result[k.to_s] = map_value(v, locale)
    end
    result
  else
    value
  end
end

#multiple_locales? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jekyll-contentful-data-import/mappers/base.rb', line 53

def multiple_locales?
  config.fetch('cda_query', {}).fetch('locale', nil) == '*'
end