Class: PdfTemplator::Reader

Inherits:
Object
  • Object
show all
Defined in:
lib/pdf_templator/reader.rb

Constant Summary collapse

FieldsMismatchError = 
Class.new ArgumentError

Instance Method Summary collapse

Constructor Details

#initialize(content:, header: nil, footer: nil) ⇒ type

Create a new Template Reader } }

Parameters:

  • content (String) —

    Content of the template

  • header=nil (Hash) —

    { center: ‘TEXT’, font_name: ‘NAME’, font_size: SIZE, left: ‘TEXT’, right: ‘TEXT’, spacing: REAL, line: true, content: ‘HTML CONTENT ALREADY RENDERED’

  • footer=nil (Hash) —

    { center: ‘TEXT’, font_name: ‘NAME’, font_size: SIZE, left: ‘TEXT’, right: ‘TEXT’, spacing: REAL, line: true, content: ‘HTML CONTENT ALREADY RENDERED’

See Also:



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# File 'lib/pdf_templator/reader.rb', line 35

def initialize(content:, header: nil, footer: nil)
  @content = content
  @header = header
  @footer = footer
end

Instance Method Details

#fields ⇒ Hash

Get all the <field>s of the template. }

Returns:

  • (Hash) —

    { type: text|number|money|date, value: ‘The value of the field’, name: ‘the_name_of_the_field’



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# File 'lib/pdf_templator/reader.rb', line 47

def fields
  return @fields if @fields
  @fields = {}
  nokogiri_fields.each do |field|
    name = field.attr('name').downcase.gsub(/ |-/, '_')
    type = field.attr('type')
    args = extract_args(field)
    value = field.text
    @fields[name.to_sym] = { type: type, value: value, name: name, args: args }
  end
  @fields
end

#fields_array ⇒ Object 



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# File 'lib/pdf_templator/reader.rb', line 60

def fields_array
  @fields_array ||= fields.map { |_, element| element }
end

#missing_fields(fields) ⇒ Object 



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# File 'lib/pdf_templator/reader.rb', line 106

def missing_fields(fields)
  a = fields_array.map { |field| field[:name] }
  b = fields if fields.is_a?(Array)
  b ||= fields.keys
  a - b
end

#replace_fields(fields) ⇒ Object 



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# File 'lib/pdf_templator/reader.rb', line 86

def replace_fields(fields)
  fields.each do |k, v|
    k = k.downcase.gsub(/ |-/, '_')
    field_selector = "field[name=#{k}]"
    doc.css(field_selector).each do |field|
      new_node = doc.create_element('span')
      args = extract_args(field)
      new_node.add_child(format_content(field.attr('type'), args, v))
      field.replace(new_node)
    end
  end
end

#valid_fields?(fields) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pdf_templator/reader.rb', line 99

def valid_fields?(fields)
  a = fields_array.map { |field| field[:name] }
  b = fields if fields.is_a?(Array)
  b ||= fields.keys
  a.sort == b.sort
end

#write(fields) ⇒ String

Write a PDF with the fields, The type of the field will be taken from the original field.

fecha: 'The content of the field'

Parameters:

  • fields (Hash) —

    with format

Returns:

  • (String) —

    String of the PDF



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# File 'lib/pdf_templator/reader.rb', line 73

def write(fields)
  fields = clean_fields(fields)

  fail FieldsMismatchError, "Missing fields #{missing_fields(fields)}" unless valid_fields?(fields)
  build_doc && replace_fields(fields)
  WickedPdf.new.pdf_from_string(
    doc.to_html,
    encoding: 'UTF-8',
    footer: @footer,
    dpi: 300,
  )
end