Class: Iformat

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/iformat.rb

Constant Summary collapse

SIZES = 
['keep', 'limit', 'force']
GRAVITY = 
['CenterGravity', 'NorthWestGravity', 'NorthGravity', 'NorthEastGravity', 'WestGravity', 'EastGravity', 'SouthWestGravity', 'SouthGravity', 'SouthEastGravity']

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.[](fmt) ⇒ Object 



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# File 'app/models/iformat.rb', line 11

def [](fmt)
  Thread.current[:visitor].site.iformats[fmt]
end

.formats_for_site(site_id, as_hash = true) ⇒ Object 



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# File 'app/models/iformat.rb', line 41

def formats_for_site(site_id, as_hash = true)
  formats = Zena::Use::ImageBuilder::DEFAULT_FORMATS.dup

  site_formats = {}
  last_update = nil

  self.find(:all, :conditions=>["site_id = ?", site_id]).each do |f|
    last_update  = f.updated_at if !last_update || f.updated_at > last_update
    if as_hash
      site_formats[f.name] = f.as_hash
    else
      site_formats[f.name] = f
    end
  end

  formats.merge!(site_formats)
  formats[:updated_at] = last_update
  formats
end

.list ⇒ Object 



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# File 'app/models/iformat.rb', line 15

def list
  res = []
  Thread.current[:visitor].site.iformats.merge(formats_for_site(visitor.site.id, false)).each do |k,v|
    next if k == :updated_at || k.nil?
    if v.kind_of?(Iformat)
      res << v
    else
      res << Iformat.new_from_default(k)
    end
  end
  res.sort do |a,b|
    if a.size == 'keep'
      b.size == 0 ? a[:name] <=> b[:name] : 1
    elsif b.size == 'keep'
      -1
    else
      sz = (a.width.to_f * a.height.to_f) <=> (b.width.to_f * b.height.to_f)
      if sz == 0
        a[:name] <=> b[:name]
      else
        sz
      end
    end
  end
end

.new_from_default(key) ⇒ Object 



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# File 'app/models/iformat.rb', line 61

def new_from_default(key)
  return nil unless default = Zena::Use::ImageBuilder::DEFAULT_FORMATS[key]
  obj = self.new
  default.each do |k,v|
    next if k == :hash_id
    if k == :popup && v.kind_of?(Hash)
      v = v.dup
      obj.popup = "#{v.delete(:name)} #{v.to_json}"
    else
      obj.send("#{k}=", v.to_s)
    end
  end
  obj
end

Instance Method Details

#as_hash ⇒ Object

:size=>:force, :width=>280, :height=>120, :gravity=>Magick::NorthGravity



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# File 'app/models/iformat.rb', line 78

def as_hash
  if self[:popup]
    if self[:popup] =~ /^(\w+?)\s*\((.*)\)/
      popup = {:name => $1}
      show = $2.split(',').map(&:strip)
      options = {}
      popup[:show] = show.map do |k|
        if k == 'link'
          options['title'] = 'link'
          'title'
        else
          k
        end
      end
      popup[:options] = options
    elsif self[:popup] =~ /^(\w+?)\s*(\{.*\})\s*$/
      popup = {:name => $1}
      options = JSON.load($2) rescue {}
      unless popup[:show] = options.delete('show')
        popup[:show] = options.keys.sort do |a,b|
          # keep sort order
          self[:popup].index(a) <=> self[:popup].index(b)
        end
        popup[:options] = {}
        options.each do |k,v|
          next if v == true
          popup[:options][k] = v
        end
      end
    else
      popup = {
        :name    => self[:popup],
        :options => {'title' => 'link'},
        :show    => ['navigation','title','summary']
      }
    end
  else
    popup = nil
  end

  h = {
    :name    => self[:name],
    :size    => size.to_sym,
    :width   => width,
    :height  => height,
    :gravity => eval("Magick::#{gravity}"),
  }
  h.merge!(:hash_id => Zena::Use::ImageBuilder.hash_id(h))
  h.merge!(:popup => popup) if popup
  h
end

#gravity ⇒ Object 



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# File 'app/models/iformat.rb', line 148

def gravity
  GRAVITY[self[:gravity].to_i]
end

#gravity=(str) ⇒ Object 



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# File 'app/models/iformat.rb', line 152

def gravity=(str)
  self[:gravity] = GRAVITY.index(str)
end

#hash_id ⇒ Object

This is a unique identifier used to cache images with format: image30_pv.jpg#+ format.hash_id



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# File 'app/models/iformat.rb', line 132

def hash_id
  Zena::Use::ImageBuilder.hash_id(self.as_hash)
end

#popup_name ⇒ Object 



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# File 'app/models/iformat.rb', line 140

def popup_name
  popup ? popup[/^(.*?)(\s|$)/,1] : ''
end

#pseudo_id ⇒ Object 



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# File 'app/models/iformat.rb', line 156

def pseudo_id
  new_record? ? name : id
end

#size ⇒ Object 



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# File 'app/models/iformat.rb', line 136

def size
  SIZES[self[:size].to_i]
end

#size=(str) ⇒ Object 



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# File 'app/models/iformat.rb', line 144

def size=(str)
  self[:size] = SIZES.index(str.to_s)
end