Class: Redmine::Plugin

Inherits:
Object
  • Object
show all
Defined in:
lib/redmine/plugin.rb

Overview

Base class for Redmine plugins. Plugins are registered using the register class method that acts as the public constructor.

Redmine::Plugin.register :example do
  name 'Example plugin'
  author 'John Smith'
  description 'This is an example plugin for Redmine'
  version '0.0.1'
  settings :default => {'foo'=>'bar'}, :partial => 'settings/settings'
end

Plugin attributes

settings is an optional attribute that let the plugin be configurable. It must be a hash with the following keys:

  • :default: default value for the plugin settings

  • :partial: path of the configuration partial view, relative to the plugin app/views directory

Example:

settings :default => {'foo'=>'bar'}, :partial => 'settings/settings'

In this example, the settings partial will be found here in the plugin directory: app/views/settings/_settings.rhtml.

When rendered, the plugin settings value is available as the local variable settings

Defined Under Namespace

Classes: Migrator

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(id) ⇒ Plugin

Returns a new instance of Plugin.


161
162
163
 
# File 'lib/redmine/plugin.rb', line 161

def initialize(id)
  @id = id.to_sym
end

Class Attribute Details

.registered_plugins ⇒ Object (readonly)

Returns the value of attribute registered_plugins


56
57
58
 
# File 'lib/redmine/plugin.rb', line 56

def registered_plugins
  @registered_plugins
end

Instance Attribute Details

#id ⇒ Object (readonly)

Returns the value of attribute id


70
71
72
 
# File 'lib/redmine/plugin.rb', line 70

def id
  @id
end

Class Method Details

.all ⇒ Object

Returns an array of all registered plugins


116
117
118
 
# File 'lib/redmine/plugin.rb', line 116

def self.all
  registered_plugins.values.sort
end

.clear ⇒ Object

Clears the registered plugins hash It doesn't unload installed plugins


128
129
130
 
# File 'lib/redmine/plugin.rb', line 128

def self.clear
  @registered_plugins = {}
end

.def_field(*names) ⇒ Object 


59
60
61
62
63
64
65
66
67
 
# File 'lib/redmine/plugin.rb', line 59

def def_field(*names)
  class_eval do
    names.each do |name|
      define_method(name) do |*args|
        args.empty? ? instance_variable_get("@#{name}") : instance_variable_set("@#{name}", *args)
      end
    end
  end
end

.find(id) ⇒ Object

Finds a plugin by its id Returns a PluginNotFound exception if the plugin doesn't exist


122
123
124
 
# File 'lib/redmine/plugin.rb', line 122

def self.find(id)
  registered_plugins[id.to_sym] || raise(PluginNotFound)
end

.installed?(id) ⇒ Boolean

Checks if a plugin is installed

Parameters:

  • id (String) —

    name of the plugin

Returns:

  • (Boolean) 

141
142
143
 
# File 'lib/redmine/plugin.rb', line 141

def self.installed?(id)
  registered_plugins[id.to_sym].present?
end

.load ⇒ Object 


145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
 
# File 'lib/redmine/plugin.rb', line 145

def self.load
  Dir.glob(File.join(self.directory, '*')).sort.each do |directory|
    if File.directory?(directory)
      lib = File.join(directory, "lib")
      if File.directory?(lib)
        $:.unshift lib
        ActiveSupport::Dependencies.autoload_paths += [lib]
      end
      initializer = File.join(directory, "init.rb")
      if File.file?(initializer)
        require initializer
      end
    end
  end
end

.migrate(name = nil, version = nil) ⇒ Object

Migrates all plugins or a single plugin to a given version Exemples:

Plugin.migrate
Plugin.migrate('sample_plugin')
Plugin.migrate('sample_plugin', 1)


455
456
457
458
459
460
461
462
463
 
# File 'lib/redmine/plugin.rb', line 455

def self.migrate(name=nil, version=nil)
  if name.present?
    find(name).migrate(version)
  else
    all.each do |plugin|
      plugin.migrate
    end
  end
end

.mirror_assets(name = nil) ⇒ Object

Mirrors assets from one or all plugins to public/plugin_assets


416
417
418
419
420
421
422
423
424
 
# File 'lib/redmine/plugin.rb', line 416

def self.mirror_assets(name=nil)
  if name.present?
    find(name).mirror_assets
  else
    all.each do |plugin|
      plugin.mirror_assets
    end
  end
end

.register(id, &block) ⇒ Object

Plugin constructor


73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
 
# File 'lib/redmine/plugin.rb', line 73

def self.register(id, &block)
  p = new(id)
  p.instance_eval(&block)

  # Set a default name if it was not provided during registration
  p.name(id.to_s.humanize) if p.name.nil?  # Set a default directory if it was not provided during registration

  p.directory(File.join(self.directory, id.to_s)) if p.directory.nil?

  # Adds plugin locales if any
  # YAML translation files should be found under <plugin>/config/locales/
  Rails.application.config.i18n.load_path += Dir.glob(File.join(p.directory, 'config', 'locales', '*.yml'))

  # Prepends the app/views directory of the plugin to the view path
  view_path = File.join(p.directory, 'app', 'views')
  if File.directory?(view_path)
    ActionController::Base.prepend_view_path(view_path)
    ActionMailer::Base.prepend_view_path(view_path)
  end

  # Adds the app/{controllers,helpers,models} directories of the plugin to the autoload path
  Dir.glob File.expand_path(File.join(p.directory, 'app', '{controllers,helpers,models}')) do |dir|
    ActiveSupport::Dependencies.autoload_paths += [dir]
  end

  # Defines plugin setting if present
  if p.settings
    Setting.define_plugin_setting p
  end

  # Warn for potential settings[:partial] collisions
  if p.configurable?
    partial = p.settings[:partial]
    if @used_partials[partial]
      Rails.logger.warn "WARNING: settings partial '#{partial}' is declared in '#{p.id}' plugin but it is already used by plugin '#{@used_partials[partial]}'. Only one settings view will be used. You may want to contact those plugins authors to fix this."
    end
    @used_partials[partial] = p.id
  end

  registered_plugins[id] = p
end

.unregister(id) ⇒ Object

Removes a plugin from the registered plugins It doesn't unload the plugin


134
135
136
 
# File 'lib/redmine/plugin.rb', line 134

def self.unregister(id)
  @registered_plugins.delete(id)
end

Instance Method Details

#<=>(plugin) ⇒ Object 


177
178
179
 
# File 'lib/redmine/plugin.rb', line 177

def <=>(plugin)
  self.id.to_s <=> plugin.id.to_s
end

#activity_provider(*args) ⇒ Object

Registers an activity provider.

Options:

  • :class_name - one or more model(s) that provide these events (inferred from event_type by default)

  • :default - setting this option to false will make the events not displayed by default

A model can provide several activity event types.

Examples:

register :news
register :scrums, :class_name => 'Meeting'
register :issues, :class_name => ['Issue', 'Journal']

Retrieving events: Associated model(s) must implement the find_events class method. ActiveRecord models can use acts_as_activity_provider as a way to implement this class method.

The following call should return all the scrum events visible by current user that occurred in the 5 last days:

Meeting.find_events('scrums', User.current, 5.days.ago, Date.today)
Meeting.find_events('scrums', User.current, 5.days.ago, Date.today, :project => foo) # events for project foo only

Note that :view_scrums permission is required to view these events in the activity view.


355
356
357
 
# File 'lib/redmine/plugin.rb', line 355

def activity_provider(*args)
  Redmine::Activity.register(*args)
end

#assets_directory ⇒ Object 


173
174
175
 
# File 'lib/redmine/plugin.rb', line 173

def assets_directory
  File.join(directory, 'assets')
end

#configurable? ⇒ Boolean

Returns true if the plugin can be configured.

Returns:

  • (Boolean) 

370
371
372
 
# File 'lib/redmine/plugin.rb', line 370

def configurable?
  settings && settings.is_a?(Hash) && !settings[:partial].blank?
end

#delete_menu_item(menu, item) ⇒ Object

Removes item from the given menu.


284
285
286
 
# File 'lib/redmine/plugin.rb', line 284

def delete_menu_item(menu, item)
  Redmine::MenuManager.map(menu).delete(item)
end

#latest_migration ⇒ Object

Returns the version number of the latest migration for this plugin. Returns nil if this plugin has no migrations.


433
434
435
 
# File 'lib/redmine/plugin.rb', line 433

def latest_migration
  migrations.last
end

#menu(menu, item, url, options = {}) ⇒ Object Also known as: add_menu_item

Adds an item to the given menu. The id parameter (equals to the project id) is automatically added to the url.

menu :project_menu, :plugin_example, { :controller => 'example', :action => 'say_hello' }, :caption => 'Sample'

name parameter can be: :top_menu, :account_menu, :application_menu or :project_menu


278
279
280
 
# File 'lib/redmine/plugin.rb', line 278

def menu(menu, item, url, options={})
  Redmine::MenuManager.map(menu).push(item, url, options)
end

#migrate(version = nil) ⇒ Object

Migrate this plugin to the given version


444
445
446
447
 
# File 'lib/redmine/plugin.rb', line 444

def migrate(version = nil)
  puts "Migrating #{id} (#{name})..."
  Redmine::Plugin::Migrator.migrate_plugin(self, version)
end

#migration_directory ⇒ Object

The directory containing this plugin's migrations (plugin/db/migrate)


427
428
429
 
# File 'lib/redmine/plugin.rb', line 427

def migration_directory
  File.join(Rails.root, 'plugins', id.to_s, 'db', 'migrate')
end

#migrations ⇒ Object

Returns the version numbers of all migrations for this plugin.


438
439
440
441
 
# File 'lib/redmine/plugin.rb', line 438

def migrations
  migrations = Dir[migration_directory+"/*.rb"]
  migrations.map { |p| File.basename(p).match(/0*(\d+)\_/)[1].to_i }.sort
end

#mirror_assets ⇒ Object 


374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
 
# File 'lib/redmine/plugin.rb', line 374

def mirror_assets
  source = assets_directory
  destination = public_directory
  return unless File.directory?(source)

  source_files = Dir[source + "/**/*"]
  source_dirs = source_files.select { |d| File.directory?(d) }
  source_files -= source_dirs

  unless source_files.empty?
    base_target_dir = File.join(destination, File.dirname(source_files.first).gsub(source, ''))
    begin
      FileUtils.mkdir_p(base_target_dir)
    rescue Exception => e
      raise "Could not create directory #{base_target_dir}: " + e.message
    end
  end

  source_dirs.each do |dir|
    # strip down these paths so we have simple, relative paths we can
    # add to the destination
    target_dir = File.join(destination, dir.gsub(source, ''))
    begin
      FileUtils.mkdir_p(target_dir)
    rescue Exception => e
      raise "Could not create directory #{target_dir}: " + e.message
    end
  end

  source_files.each do |file|
    begin
      target = File.join(destination, file.gsub(source, ''))
      unless File.exist?(target) && FileUtils.identical?(file, target)
        FileUtils.cp(file, target)
      end
    rescue Exception => e
      raise "Could not copy #{file} to #{target}: " + e.message
    end
  end
end

#permission(name, actions, options = {}) ⇒ Object

Defines a permission called name for the given actions.

The actions argument is a hash with controllers as keys and actions as values (a single value or an array):

permission :destroy_contacts, { :contacts => :destroy }
permission :view_contacts, { :contacts => [:index, :show] }

The options argument is a hash that accept the following keys:

  • :public => the permission is public if set to true (implicitly given to any user)

  • :require => can be set to one of the following values to restrict users the permission can be given to: :loggedin, :member

  • :read => set it to true so that the permission is still granted on closed projects

Examples

# A permission that is implicitly given to any user
# This permission won't appear on the Roles & Permissions setup screen
permission :say_hello, { :example => :say_hello }, :public => true, :read => true

# A permission that can be given to any user
permission :say_hello, { :example => :say_hello }

# A permission that can be given to registered users only
permission :say_hello, { :example => :say_hello }, :require => :loggedin

# A permission that can be given to project members only
permission :say_hello, { :example => :say_hello }, :require => :member


312
313
314
315
316
317
318
 
# File 'lib/redmine/plugin.rb', line 312

def permission(name, actions, options = {})
  if @project_module
    Redmine::AccessControl.map {|map| map.project_module(@project_module) {|map|map.permission(name, actions, options)}}
  else
    Redmine::AccessControl.map {|map| map.permission(name, actions, options)}
  end
end

#project_module(name, &block) ⇒ Object

Defines a project module, that can be enabled/disabled for each project. Permissions defined inside block will be bind to the module.

project_module :things do
  permission :view_contacts, { :contacts => [:list, :show] }, :public => true
  permission :destroy_contacts, { :contacts => :destroy }
end


327
328
329
330
331
 
# File 'lib/redmine/plugin.rb', line 327

def project_module(name, &block)
  @project_module = name
  self.instance_eval(&block)
  @project_module = nil
end

#public_directory ⇒ Object 


165
166
167
 
# File 'lib/redmine/plugin.rb', line 165

def public_directory
  File.join(self.class.public_directory, id.to_s)
end

#requires_redmine(arg) ⇒ Object

Sets a requirement on Redmine version Raises a PluginRequirementError exception if the requirement is not met

Examples

# Requires Redmine 0.7.3 or higher
requires_redmine :version_or_higher => '0.7.3'
requires_redmine '0.7.3'

# Requires Redmine 0.7.x or higher
requires_redmine '0.7'

# Requires a specific Redmine version
requires_redmine :version => '0.7.3'              # 0.7.3 only
requires_redmine :version => '0.7'                # 0.7.x
requires_redmine :version => ['0.7.3', '0.8.0']   # 0.7.3 or 0.8.0

# Requires a Redmine version within a range
requires_redmine :version => '0.7.3'..'0.9.1'     # >= 0.7.3 and <= 0.9.1
requires_redmine :version => '0.7'..'0.9'         # >= 0.7.x and <= 0.9.x


200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
 
# File 'lib/redmine/plugin.rb', line 200

def requires_redmine(arg)
  arg = { :version_or_higher => arg } unless arg.is_a?(Hash)
  arg.assert_valid_keys(:version, :version_or_higher)

  current = Redmine::VERSION.to_a
  arg.each do |k, req|
    case k
    when :version_or_higher
      raise ArgumentError.new(":version_or_higher accepts a version string only") unless req.is_a?(String)
      unless compare_versions(req, current) <= 0
        raise PluginRequirementError.new("#{id} plugin requires Redmine #{req} or higher but current is #{current.join('.')}")
      end
    when :version
      req = [req] if req.is_a?(String)
      if req.is_a?(Array)
        unless req.detect {|ver| compare_versions(ver, current) == 0}
          raise PluginRequirementError.new("#{id} plugin requires one the following Redmine versions: #{req.join(', ')} but current is #{current.join('.')}")
        end
      elsif req.is_a?(Range)
        unless compare_versions(req.first, current) <= 0 && compare_versions(req.last, current) >= 0
          raise PluginRequirementError.new("#{id} plugin requires a Redmine version between #{req.first} and #{req.last} but current is #{current.join('.')}")
        end
      else
        raise ArgumentError.new(":version option accepts a version string, an array or a range of versions")
      end
    end
  end
  true
end

#requires_redmine_plugin(plugin_name, arg) ⇒ Object

Sets a requirement on a Redmine plugin version Raises a PluginRequirementError exception if the requirement is not met

Examples

# Requires a plugin named :foo version 0.7.3 or higher
requires_redmine_plugin :foo, :version_or_higher => '0.7.3'
requires_redmine_plugin :foo, '0.7.3'

# Requires a specific version of a Redmine plugin
requires_redmine_plugin :foo, :version => '0.7.3'              # 0.7.3 only
requires_redmine_plugin :foo, :version => ['0.7.3', '0.8.0']   # 0.7.3 or 0.8.0


247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
 
# File 'lib/redmine/plugin.rb', line 247

def requires_redmine_plugin(plugin_name, arg)
  arg = { :version_or_higher => arg } unless arg.is_a?(Hash)
  arg.assert_valid_keys(:version, :version_or_higher)

  plugin = Plugin.find(plugin_name)
  current = plugin.version.split('.').collect(&:to_i)

  arg.each do |k, v|
    v = [] << v unless v.is_a?(Array)
    versions = v.collect {|s| s.split('.').collect(&:to_i)}
    case k
    when :version_or_higher
      raise ArgumentError.new("wrong number of versions (#{versions.size} for 1)") unless versions.size == 1
      unless (current <=> versions.first) >= 0
        raise PluginRequirementError.new("#{id} plugin requires the #{plugin_name} plugin #{v} or higher but current is #{current.join('.')}")
      end
    when :version
      unless versions.include?(current.slice(0,3))
        raise PluginRequirementError.new("#{id} plugin requires one the following versions of #{plugin_name}: #{v.join(', ')} but current is #{current.join('.')}")
      end
    end
  end
  true
end

#to_param ⇒ Object 


169
170
171
 
# File 'lib/redmine/plugin.rb', line 169

def to_param
  id
end

#wiki_format_provider(name, formatter, helper) ⇒ Object

Registers a wiki formatter.

Parameters:

  • name - human-readable name

  • formatter - formatter class, which should have an instance method to_html

  • helper - helper module, which will be included by wiki pages


365
366
367
 
# File 'lib/redmine/plugin.rb', line 365

def wiki_format_provider(name, formatter, helper)
  Redmine::WikiFormatting.register(name, formatter, helper)
end