Class: Engine2::Action

Inherits:
BasicObject
Defined in:
lib/engine2/action.rb

Class Attribute Summary collapse

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent, name, meta_class, assets) ⇒ Action

Returns a new instance of Action.



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# File 'lib/engine2/action.rb', line 13

def initialize parent, name, meta_class, assets
    Action.count += 1
    @number = Action.count
    @parent = parent
    @name = name
    @meta = meta_class.new(self, assets)
    @actions = {}
end

Class Attribute Details

.count ⇒ Object

Returns the value of attribute count.



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# File 'lib/engine2/action.rb', line 10

def count
  @count
end

Instance Attribute Details

#actions ⇒ Object (readonly)

Returns the value of attribute actions.



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# File 'lib/engine2/action.rb', line 6

def actions
  @actions
end

#meta_proc ⇒ Object (readonly)

Returns the value of attribute meta_proc.



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# File 'lib/engine2/action.rb', line 7

def meta_proc
  @meta_proc
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/engine2/action.rb', line 6

def name
  @name
end

#number ⇒ Object (readonly)

Returns the value of attribute number.



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# File 'lib/engine2/action.rb', line 6

def number
  @number
end

#parent ⇒ Object (readonly)

Returns the value of attribute parent.



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# File 'lib/engine2/action.rb', line 6

def parent
  @parent
end

#recheck_access ⇒ Object (readonly)

Returns the value of attribute recheck_access.



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# File 'lib/engine2/action.rb', line 6

def recheck_access
  @recheck_access
end

Instance Method Details

#*(&blk) ⇒ Object 



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# File 'lib/engine2/action.rb', line 22

def * &blk
    if blk
        ::Kernel.raise E2Error.new("Meta #{name} with proc already defined for action #{self.inspect}") if @meta_proc
        @meta_proc = blk
    end
    @meta
end

#[](name) ⇒ Object 



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# File 'lib/engine2/action.rb', line 83

def [] name
    @actions[name]
end

#access!(&blk) ⇒ Object 



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# File 'lib/engine2/action.rb', line 30

def access! &blk
    ::Kernel.raise E2Error.new("Access for action #{name} already defined") if @access_block
    @access_block = blk
end

#access_forbidden! ⇒ Object 



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# File 'lib/engine2/action.rb', line 35

def access_forbidden!
    access! &ACCESS_FORBIDDEN
end

#access_info(handler) ⇒ Object 



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# File 'lib/engine2/action.rb', line 107

def access_info handler
    @actions.inject({}) do |h, (name, a)|
        h[name] = a.check_access!(handler)
        h
    end
end

#actions_info(handler) ⇒ Object 



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# File 'lib/engine2/action.rb', line 87

def actions_info handler
    info = actions.inject({}) do |h, (name, a)|
        meta = a.*
        h[name] = {
            meta_type: meta.meta_type,
            method: meta.http_method,
            number: a.number,
            access: recheck_access ? nil : a.check_access!(handler),
            recheck_access: a.recheck_access,
            terminal: a.actions.empty?,
            meta: !meta.get.empty?,
            invokable: meta.invokable
        }
        h
    end

    info.first[1][:default] = true unless actions.empty?
    info
end

#check_access!(handler) ⇒ Object 



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# File 'lib/engine2/action.rb', line 39

def check_access! handler
	!@access_block || @access_block.(handler)
end

#define_action(name, meta_class = DummyMeta, assets = {}, &blk) ⇒ Object 



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# File 'lib/engine2/action.rb', line 49

def define_action name, meta_class = DummyMeta, assets = {}, &blk
    ::Kernel.raise E2Error.new("Action #{name} already defined") if @actions[name]
    action = @actions[name] = Action.new(self, name, meta_class, assets)
    action.*.pre_run
    define_singleton_method! name do |&ablk| # forbidden list
        action.instance_eval(&ablk) if ablk
        action
    end
    action.instance_eval(&blk) if blk
    action.*.action_defined
    action
end

#define_action_bundle(name, *actions) ⇒ Object 



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# File 'lib/engine2/action.rb', line 67

def define_action_bundle name, *actions
    define_singleton_method!(name) do |&blk|
        if blk
            actions.each{|a|__send__(a, &blk)} # if @actions[action] ?
        else
            ActionBundle.new(self, actions)
        end
    end
end

#define_singleton_method!(name, &blk) ⇒ Object 



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# File 'lib/engine2/action.rb', line 77

def define_singleton_method! name, &blk
    class << self;self;end.instance_eval do # __realclass__
        define_method name, &blk
    end
end

#each_action(&blk) ⇒ Object 



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# File 'lib/engine2/action.rb', line 118

def each_action &blk
    # no self
    @actions.each_pair do |n, a|
        a.each_action(&blk) if yield a
    end
end

#inspect ⇒ Object 



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# File 'lib/engine2/action.rb', line 138

def inspect
    "Action: #{@name}, meta: #{@meta.class}, meta_type: #{@meta.meta_type}"
end

#recheck_access! ⇒ Object 



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# File 'lib/engine2/action.rb', line 114

def recheck_access!
    @recheck_access = true
end

#run_scheme(name, *args, &blk) ⇒ Object 



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# File 'lib/engine2/action.rb', line 43

def run_scheme name, *args, &blk
    result = instance_exec(*args, &SCHEMES[name])
    result.instance_eval(&blk) if blk
    result
end

#setup_action_tree ⇒ Object 



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# File 'lib/engine2/action.rb', line 142

def setup_action_tree
    time = ::Time.now

    model_actions = {}
    each_action do |action|
        if model = action.*.assets[:model]
            model_name = model.name.to_sym
            model.synchronize_type_info
            model_actions[model_name] = action.to_a_rec{|a| !a.*.assets[:assoc]}
            action.run_scheme(model_name) if SCHEMES.schemes[model_name]
            false
        else
            true
        end
    end

    each_action do |action|
        meta = action.*
        model = meta.assets[:model]
        assoc = meta.assets[:assoc]
        if model && assoc
            if source_actions = model_actions[model.name.to_sym]
                source_action = source_actions.select{|sa| sa.meta_proc && sa.*.class >= meta.class}
                # source_action = source_actions.select{|sa| sa.meta_proc && meta.class <= sa.*.class}
                unless source_action.empty?
                    # raise E2Error.new("Multiple meta candidates for #{action.inspect} found in '#{source_action.inspect}'") if source_action.size > 1
                    # puts "#{action.inspect} => #{source_action.inspect}\n"
                    meta.instance_eval(&source_action.first.meta_proc)
                end
            end
        end

        meta.instance_eval(&action.meta_proc) if action.meta_proc
        true
    end

    each_action do |action|
        action.*.post_run
        action.*.freeze_meta
        true
    end

    ::Kernel::puts "ACTIONS: #{Action.count}, Time: #{::Time.now - time}"
    # verify_action_usage
end

#to_a_rec(root = true, result = [], &blk) ⇒ Object

optimize



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# File 'lib/engine2/action.rb', line 125

def to_a_rec root = true, result = [], &blk # optimize
    if root && (yield self)
        result << self
        @actions.each_pair do |n, a|
            if yield a
                result << a
                a.to_a_rec(false, result, &blk)
            end
        end
    end
    result
end

#undefine_action(name) ⇒ Object 



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# File 'lib/engine2/action.rb', line 62

def undefine_action name
    ::Kernel.raise E2Error.new("No action #{name} defined") unless @actions[name]
    @actions.delete(name)
end

#verify_action_usage ⇒ Object 



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# File 'lib/engine2/action.rb', line 188

def verify_action_usage
    t = ::Time.now
    each_action do |action|
        meta = action.*
        model = meta.assets[:model]
        if model
            model.one_to_many_associations.each do |a|
            end
            true
        else
            true
        end

    end
    ::Kernel::puts "VERIFY #{::Time.now - t}"
end