Class: Postwave::Post

Inherits:
Object
  • Object
show all
Includes:
BlogUtilities
Defined in:
lib/postwave/post.rb

Constant Summary collapse

KNOWN_FIELDS = 
%w(title date tags title_slug body draft)
REQUIRED_FIELDS = 
%w(title date)
MEATADATA_DELIMTER = 
"---"
@@markdown = 
Redcarpet::Markdown.new(Redcarpet::Render::HTML, fenced_code_blocks: true)

Constants included from BlogUtilities

BlogUtilities::CONFIG_FILE_NAME, BlogUtilities::INDEX_FILE_NAME, BlogUtilities::META_DIR, BlogUtilities::POSTS_DIR, BlogUtilities::RSS_FILE_NAME, BlogUtilities::SUMMARY_FILE_NAME, BlogUtilities::TAGS_DIR

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from BlogUtilities

#config_values, #directory_paths, #file_paths, #find_missing_paths, #is_set_up?

Constructor Details

#initialize(file_name, field_content = {}) ⇒ Post

Returns a new instance of Post.



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# File 'lib/postwave/post.rb', line 61

def initialize(file_name, field_content = {})
  @file_name = file_name

  field_content.each do |field, value|
    instance_variable_set("@#{field}", value) unless self.instance_variables.include?("@#{field}".to_sym)
    self.class.send(:attr_reader, field) unless self.public_methods.include?(field.to_sym)
  end
end

Instance Attribute Details

#file_name ⇒ Object

Returns the value of attribute file_name.



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# File 'lib/postwave/post.rb', line 12

def file_name
  @file_name
end

Class Method Details

.new_from_file_path(path) ⇒ Object 



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# File 'lib/postwave/post.rb', line 16

def self.new_from_file_path(path)
  metadata_delimter_count = 0
  body_buffer_count = 0
  field_content = { "body" => "" }

  File.readlines(path).each do |line|
    clean_line = line.strip
    if clean_line == MEATADATA_DELIMTER
      metadata_delimter_count += 1
      next
    end

    if metadata_delimter_count == 0
      next
    elsif metadata_delimter_count == 1
      field, value = clean_line.split(":", 2).map(&:strip)
      field_content[field] = value
    else
      if body_buffer_count == 0
        body_buffer_count += 1
        next if clean_line.empty?
      end

      field_content["body"] += "#{line}"
    end
  end

  # turn "date" into a Time object
  field_content["date"] = Time.parse(field_content["date"])

  # turn "tags" into an array
  if field_content["tags"]
    field_content["tags"] = field_content["tags"].split(",").map do |tag|
      tag.downcase.strip.gsub(' ', '-').gsub(/[^\w-]/, '')
    end
  end

  # turn "draft" into boolean
  if field_content["draft"]
    field_content["draft"] = field_content["draft"].downcase == "true"
  end

  self.new(path, field_content)
end

Instance Method Details

#body_html ⇒ Object 



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# File 'lib/postwave/post.rb', line 82

def body_html
  @@markdown.render(@body)
end

#generated_file_name ⇒ Object 



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# File 'lib/postwave/post.rb', line 86

def generated_file_name
  # YYYY-MM-DD-slug-from-title.md
  "#{@date.to_s[..9]}-#{slug}.md"
end

#slug ⇒ Object 



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# File 'lib/postwave/post.rb', line 74

def slug
  @slug ||= @title_slug
end

#slug=(new_slug) ⇒ Object 



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# File 'lib/postwave/post.rb', line 78

def slug=(new_slug)
  @slug = new_slug
end

#title_slug ⇒ Object 



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# File 'lib/postwave/post.rb', line 70

def title_slug
  @title_slug ||= @title.downcase.strip.gsub(' ', '-').gsub(/[^\w-]/, '')
end

#update_file_name! ⇒ Object 



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# File 'lib/postwave/post.rb', line 91

def update_file_name!
  desired_file_name = generated_file_name
  return false if @file_name == desired_file_name

  File.rename(@file_name, File.join(Dir.pwd, POSTS_DIR, desired_file_name))
  @file_name = desired_file_name
end