Class: Attachment

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

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#temp_file ⇒ Object

Returns the value of attribute temp_file.



13
14
15
 
# File 'app/models/attachment.rb', line 13

def temp_file
  @temp_file
end

Class Method Details

.find_live_by_file_path(file_path) ⇒ Object 



130
131
132
 
# File 'app/models/attachment.rb', line 130

def self.find_live_by_file_path(file_path)
  Attachment.published.not_archived.first(:conditions => {:file_path => file_path})
end

.storage_location ⇒ Object

—– Class Methods ———————————————————



122
123
124
 
# File 'app/models/attachment.rb', line 122

def self.storage_location
  @storage_location ||= File.join(Rails.root, "/tmp/uploads")
end

.storage_location=(storage_location) ⇒ Object 



126
127
128
 
# File 'app/models/attachment.rb', line 126

def self.storage_location=(storage_location)
  @storage_location = storage_location
end

Instance Method Details

#clear_ivars ⇒ Object 



114
115
116
117
118
 
# File 'app/models/attachment.rb', line 114

def clear_ivars
  @temp_file = nil
  @section = nil
  @section_id = nil
end

#dirty! ⇒ Object

Forces this record to be changed, even if nothing has changed This is necessary if just the section.id has changed, for example



172
173
174
175
 
# File 'app/models/attachment.rb', line 172

def dirty!
  # Seems like a hack, is there a better way?
  self.updated_at = Time.now
end

#extract_file_extension_from_file_name ⇒ Object 



58
59
60
61
62
 
# File 'app/models/attachment.rb', line 58

def extract_file_extension_from_file_name
  if file_name && file_name['.']
    self.file_extension = file_name.split('.').last.to_s.downcase
  end
end

#extract_file_size_from_temp_file ⇒ Object 



70
71
72
73
74
 
# File 'app/models/attachment.rb', line 70

def extract_file_size_from_temp_file
  unless temp_file.blank?
    self.file_size = temp_file.size
  end
end

#extract_file_type_from_temp_file ⇒ Object 



64
65
66
67
68
 
# File 'app/models/attachment.rb', line 64

def extract_file_type_from_temp_file
  unless temp_file.blank?
    self.file_type = temp_file.content_type
  end
end

#file_name ⇒ Object

—– Instance Methods ——————————————————



136
137
138
 
# File 'app/models/attachment.rb', line 136

def file_name
  file_path ? file_path.split('/').last : nil
end

#full_file_location ⇒ Object 



166
167
168
 
# File 'app/models/attachment.rb', line 166

def full_file_location
  File.join(Attachment.storage_location, file_location)
end

#hack ⇒ Object 



87
88
89
 
# File 'app/models/attachment.rb', line 87

def hack
   section_id = -1
end

#icon ⇒ Object 



144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
 
# File 'app/models/attachment.rb', line 144

def icon
  {
      :doc => %w[doc],
      :gif => %w[gif jpg jpeg png tiff bmp],
      :htm => %w[htm html],
      :pdf => %w[pdf],
      :ppt => %w[ppt],
      :swf => %w[swf],
      :txt => %w[txt],
      :xls => %w[xls],
      :xml => %w[xml],
      :zip => %w[zip rar tar gz tgz]
  }.each do |icon, extensions|
    return icon if extensions.include?(file_extension.to_s)
  end
  :file
end

#make_dirty_if_temp_file ⇒ Object

—– Callbacks Methods —————————————————–



48
49
50
 
# File 'app/models/attachment.rb', line 48

def make_dirty_if_temp_file
  dirty! if temp_file
end

#name ⇒ Object 



140
141
142
 
# File 'app/models/attachment.rb', line 140

def name
  file_name
end

#prepend_file_path_with_slash ⇒ Object 



52
53
54
55
56
 
# File 'app/models/attachment.rb', line 52

def prepend_file_path_with_slash
  unless file_path.blank?
    self.file_path = "/#{file_path}" unless file_path =~ /^\//
  end
end

#process_section ⇒ Object 



90
91
92
93
94
95
96
97
 
# File 'app/models/attachment.rb', line 90

def process_section
  #logger.info "processing section, section_id => #{section_id}, section_node => #{section_node.inspect}"
  if section_node && !section_node.new_record? && section_node.section_id != section_id
    section_node.move_to_end(Section.find(section_id))
  else
    build_section_node(:node => self, :section_id => section_id)
  end
end

#public? ⇒ Boolean

Returns:

  • (Boolean) 


162
163
164
 
# File 'app/models/attachment.rb', line 162

def public?
  section ? section.public? : false
end

#set_file_location ⇒ Object

The file will be stored on disk at Attachment.storage_location/year/month/day/sha1 The sha1 is a 40 character hash based on the original_filename of the file uploaded and the current time



80
81
82
83
84
85
 
# File 'app/models/attachment.rb', line 80

def set_file_location
  unless temp_file.blank?
    sha1 = Digest::SHA1.hexdigest("#{temp_file.original_filename}#{Time.now.to_f}")
    self.file_location = "#{Time.now.strftime("%Y/%m/%d")}/#{sha1}"
  end
end

#write_temp_file_to_storage_location ⇒ Object 



99
100
101
102
103
104
105
106
107
108
109
110
111
112
 
# File 'app/models/attachment.rb', line 99

def write_temp_file_to_storage_location
  unless temp_file.blank?
    FileUtils.mkdir_p File.dirname(full_file_location)
    if temp_file.local_path
      FileUtils.copy temp_file.local_path, full_file_location
    else
      open(full_file_location, 'w') {|f| f << temp_file.read }
    end
    
    if Cms.attachment_file_permission
      FileUtils.chmod Cms.attachment_file_permission, full_file_location
    end
  end
end