Class: Dryml::TemplateEnvironment
- Inherits:
-
Object
- Object
- Dryml::TemplateEnvironment
- Includes:
- Helper
- Defined in:
- lib/dryml/template_environment.rb
Class Attribute Summary collapse
-
.compiled_local_names ⇒ Object
Returns the value of attribute compiled_local_names.
-
.load_time ⇒ Object
Returns the value of attribute load_time.
Class Method Summary collapse
Instance Method Summary collapse
- #_tag_context(attributes) ⇒ Object
- #_tag_locals(attributes, locals) ⇒ Object
- #add_classes(attributes, *classes) ⇒ Object
- #add_classes!(attributes, *classes) ⇒ Object
- #add_data_rapid(attrs, tag, options) ⇒ Object
- #add_data_rapid!(attrs, tag, options) ⇒ Object
- #attrs_for(name) ⇒ Object
- #call_part(part_node_id, part_name, *locals) ⇒ Object
- #call_polymorphic_tag(name, *args) ⇒ Object
- #call_tag_parameter(the_tag, attributes, parameters, caller_parameters, param_name) ⇒ Object
- #call_tag_parameter_with_default_content(the_tag, attributes, default_content, overriding_content_proc) ⇒ Object
- #deunderscore_attributes(attrs) ⇒ Object
- #element(name, attributes, content = nil, escape = true, empty = false, &block) ⇒ Object
- #find_form_field_path(object) ⇒ Object
- #find_polymorphic_tag(name, call_type = nil) ⇒ Object
-
#initialize(view = nil) ⇒ TemplateEnvironment
constructor
A new instance of TemplateEnvironment.
- #merge_attrs(attrs, overriding_attrs) ⇒ Object
- #merge_parameter_hashes(given_parameters, overriding_parameters) ⇒ Object
-
#merge_tag_parameter(general_proc, overriding_proc) ⇒ Object
This method is used where ‘param’ is declared on a tag that is itself a parameter tag.
- #method_missing(name, *args, &b) ⇒ Object
- #new_context ⇒ Object
- #new_field_context(field_path, new_this = nil) ⇒ Object
- #new_object_context(new_this) ⇒ Object
- #override_and_call_tag(the_tag, general_attributes, general_parameters, overriding_attributes, overriding_parameters) ⇒ Object
- #parse_for_type(attributes) ⇒ Object
- #part_contexts_storage_uncoded ⇒ Object
- #path_for_form_field ⇒ Object
- #refresh_part(encoded_context, session, dom_id) ⇒ Object
- #register_form_field(name) ⇒ Object
- #remove_classes!(attributes, *remove_classes) ⇒ Object
- #render_tag(tag_name, attributes) ⇒ Object
- #repeat_attribute(string_or_array) ⇒ Object
- #scope ⇒ Object
- #session ⇒ Object
- #this_field_reflection ⇒ Object
- #this_key=(key) ⇒ Object
-
#this_type ⇒ Object
The type of this, or when this is nil, the type that would be expected in the current field.
- #typed_id(object = nil, attribute = nil) ⇒ Object
- #with_form_context(form_this = this, form_field_path = [form_this.class.name.underscore]) ⇒ Object
- #with_part_context(context, &block) ⇒ Object
- #yield_output_buffer ⇒ Object
Methods included from Helper
#context_map, #create_part_id, #first_item?, #last_item?, #param_name_for, #param_name_for_this, #param_name_for_this_parent
Constructor Details
#initialize(view = nil) ⇒ TemplateEnvironment
Returns a new instance of TemplateEnvironment.
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# File 'lib/dryml/template_environment.rb', line 28 def initialize(view=nil) unless view.nil? @view = view @_erb_binding = binding @_part_contexts = {} @_scoped_variables = ScopedVariables.new @_polymorphic_tag_cache = {} # Make sure the "assigns" from the controller are available (instance variables) if view view.assigns.each do |key, value| instance_variable_set("@#{key}", value) end # copy view instance variables over view.instance_variables.each do |iv| instance_variable_set(iv, view.instance_variable_get(iv)) end # Rails 4 hack. Our method_missing hack doesn't get these because they're already (imporperly) defined. Not sure why self.assets_prefix = view.assets_prefix self.assets_environment = view.assets_environment self.assets_manifest = view.assets_manifest self.digest_assets = view.digest_assets end end end |
Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(name, *args, &b) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 645 def method_missing(name, *args, &b) if @view @view.send(name, *args, &b) else raise NoMethodError, name.to_s end end |
Class Attribute Details
.compiled_local_names ⇒ Object
Returns the value of attribute compiled_local_names.
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# File 'lib/dryml/template_environment.rb', line 9 def compiled_local_names @compiled_local_names end |
.load_time ⇒ Object
Returns the value of attribute load_time.
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# File 'lib/dryml/template_environment.rb', line 9 def load_time @load_time end |
Class Method Details
._register_tag_attrs(tag_name, attrs) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 12 def _register_tag_attrs(tag_name, attrs) @tag_attrs ||= {} @tag_attrs[tag_name] = attrs end |
.inherited(subclass) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 6 def inherited(subclass) subclass.compiled_local_names = [] end |
.tag_attrs ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 18 def tag_attrs @tag_attrs ||= {} end |
Instance Method Details
#_tag_context(attributes) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 380 def _tag_context(attributes) with = attributes[:with] field = attributes[:field] if with && field new_object_context(with) { new_field_context(field) { yield } } elsif field new_field_context(field) { yield } elsif attributes.has_key?(:with) new_object_context(with) { yield } else new_context { yield } end end |
#_tag_locals(attributes, locals) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 414 def _tag_locals(attributes, locals) attributes = attributes.symbolize_keys #ensure with and field are not in attributes attributes.delete(:with) attributes.delete(:field) # declared attributes don't appear in the attributes hash stripped_attributes = HashWithIndifferentAccess.new.update(attributes) locals.each {|a| stripped_attributes.delete(a.to_sym) } # Return locals declared as local variables (attrs="...") locals.map {|a| attributes[a.to_sym]} + [stripped_attributes] end |
#add_classes(attributes, *classes) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 124 def add_classes(attributes, *classes) add_classes!(HashWithIndifferentAccess.new(attributes), classes) end |
#add_classes!(attributes, *classes) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 117 def add_classes!(attributes, *classes) classes = classes.flatten.select{|x|x} current = attributes[:class] attributes[:class] = (current ? current.split + classes : classes).uniq.join(' ') attributes end |
#add_data_rapid(attrs, tag, options) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 141 def add_data_rapid(attrs, tag, ) add_data_rapid!(HashWithIndifferentAccess.new(attrs), tag, ) end |
#add_data_rapid!(attrs, tag, options) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 135 def add_data_rapid!(attrs, tag, ) data_rapid = ActiveSupport::JSON.decode(attrs["data_rapid"] || "{}") attrs["data_rapid"] = data_rapid.update(tag => ).to_json attrs end |
#attrs_for(name) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 108 def attrs_for(name) self.class.tag_attrs[name.to_sym] end |
#call_part(part_node_id, part_name, *locals) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 184 def call_part(part_node_id, part_name, *locals) res = '' new_context do @_part_contexts[part_node_id] = PartContext.for_call(part_name, self, locals) res = send("#{part_name}_part", *locals) end res end |
#call_polymorphic_tag(name, *args) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 236 def call_polymorphic_tag(name, *args) name = name.to_s.gsub('-', '_') type = args.first.is_a?(Class) ? args.shift : nil attributes, parameters = args tag = find_polymorphic_tag(name, type) if tag != name send(tag, attributes || {}, parameters || {}) else block_given? ? yield : nil end end |
#call_tag_parameter(the_tag, attributes, parameters, caller_parameters, param_name) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 450 def call_tag_parameter(the_tag, attributes, parameters, caller_parameters, param_name) overriding_proc = caller_parameters[param_name] replacing_proc = caller_parameters[:"#{param_name}_replacement"] unless param_name == the_tag || param_name == :default classes = attributes[:class] param_class = param_name.to_s.gsub('_', '-') attributes[:class] = if classes classes =~ /\b#{param_class}\b/ ? classes : "#{classes} #{param_class}" else param_class end end if param_name == :default && overriding_proc && overriding_proc.arity>0 # :default content is handled specially call_tag_parameter_with_default_content(the_tag, attributes, parameters[:default], overriding_proc) elsif replacing_proc # The caller is replacing this parameter. Don't call the tag # at all, just the overriding proc, but pass the restorable # tag as a parameter to the overriding proc tag_restore = proc do |restore_attrs, restore_params| # Call the replaced tag with the attributes and parameters # as given in the original tag definition, and with the # specialisation given on the 'restore' call if overriding_proc overriding_attributes, overriding_parameters = overriding_proc.call restore_attrs = overriding_attributes.merge(restore_attrs) restore_params = overriding_parameters.merge(restore_params) end override_and_call_tag(the_tag, attributes, parameters, restore_attrs, restore_params) end replacing_proc.call(tag_restore) else overriding_attributes, overriding_parameters = overriding_proc._?.call override_and_call_tag(the_tag, attributes, parameters, overriding_attributes, overriding_parameters) end end |
#call_tag_parameter_with_default_content(the_tag, attributes, default_content, overriding_content_proc) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 429 def call_tag_parameter_with_default_content(the_tag, attributes, default_content, overriding_content_proc) if the_tag.is_one_of?(String, Symbol) && the_tag.to_s.in?(Dryml.) body = if overriding_content_proc new_context { overriding_content_proc.call(proc { default_content._?.call(nil) }) } elsif default_content new_context { default_content.call(nil) } else nil end element(the_tag, attributes, body) else d = if overriding_content_proc proc { |default| overriding_content_proc.call(proc { default_content._?.call(default) }) } else proc { |default| default_content._?.call(default) } end send(the_tag, attributes, { :default => d }) end end |
#deunderscore_attributes(attrs) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 113 def deunderscore_attributes(attrs) HashWithIndifferentAccess[attrs.map{ |attr, value| [attr.to_s.gsub('_', '-'), value]}] end |
#element(name, attributes, content = nil, escape = true, empty = false, &block) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 606 def element(name, attributes, content=nil, escape = true, empty = false, &block) unless attributes.blank? attrs = [] if escape attributes.each do |key, value| next unless value key = key.to_s.gsub("_", "-") value = if ActionView::Helpers::TagHelper::BOOLEAN_ATTRIBUTES.include?(key) key else # escape once value.to_s.gsub(/[\"><]|&(?!([a-zA-Z]+|(#\d+));)/) { |special| ERB::Util::HTML_ESCAPE[special] } end attrs << %(#{key}="#{value}") end else attrs = .map do |key, value| key = key.to_s.gsub("_", "-") %(#{key}="#{value}") end end attr_string = " #{attrs.sort * ' '}" unless attrs.empty? end content = capture { new_context &block } if block_given? if empty "<#{name}#{attr_string}#{scope.xmldoctype ? ' /' : ''}>".html_safe else "<#{name}#{attr_string}>".html_safe + content + "</#{name}>".html_safe end end |
#find_form_field_path(object) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 360 def find_form_field_path(object) back = [] while object path = @_form_field_paths_by_object[object] if path path = path + back unless back.empty? return path end if object.respond_to? :origin back.unshift object.origin_attribute object = object.origin else return nil end end end |
#find_polymorphic_tag(name, call_type = nil) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 250 def find_polymorphic_tag(name, call_type=nil) call_type ||= (this.respond_to?(:member_class) && this.member_class) || this_type begin found = nil while true # ActiveSupport::TimeWithZone.name would return 'Time' # so we add an exception to pick the right datetime type type_name = ( call_type == ActiveSupport::TimeWithZone ? 'datetime' : call_type.name.to_s).underscore.gsub('/', '__') if respond_to?(poly_name = "#{name}__for_#{type_name}") found = poly_name break else if call_type == Object found = name break else call_type = call_type.superclass end end end found end end |
#merge_attrs(attrs, overriding_attrs) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 145 def merge_attrs(attrs, overriding_attrs) attrs = {}.update(attrs) return attrs if overriding_attrs.nil? attrs = attrs.with_indifferent_access unless attrs.is_a?(HashWithIndifferentAccess) classes = overriding_attrs[:class] add_classes!(attrs, *classes.split) if classes remove_classes!(attrs, *(overriding_attrs[:remove_class].split)) if overriding_attrs[:remove_class] if (data_rapid = overriding_attrs["data_rapid"]) attrs["data_rapid"]=ActiveSupport::JSON.decode(attrs["data_rapid"] || "{}"). update(ActiveSupport::JSON.decode(data_rapid)).to_json end attrs.update(overriding_attrs - [:class, :data_rapid]) end |
#merge_parameter_hashes(given_parameters, overriding_parameters) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 580 def merge_parameter_hashes(given_parameters, overriding_parameters) to_merge = given_parameters.keys & overriding_parameters.keys no_merge = overriding_parameters.keys - to_merge result = given_parameters.dup no_merge.each { |k| result[k] = overriding_parameters[k] } to_merge.each { |k| result[k] = merge_tag_parameter(given_parameters[k], overriding_parameters[k])} result end |
#merge_tag_parameter(general_proc, overriding_proc) ⇒ Object
This method is used where ‘param’ is declared on a tag that is itself a parameter tag. Takes two procs that each return a pair of hashes (attributes and parameters). Returns a single proc that also returns a pair of hashes - the merged atributes and parameters.
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# File 'lib/dryml/template_environment.rb', line 542 def merge_tag_parameter(general_proc, overriding_proc) if overriding_proc.nil? general_proc else if overriding_proc.arity == 1 # The override is a replace parameter - just pass it on overriding_proc else proc do overriding_attrs, overriding_parameters = overriding_proc.call general_attrs, general_parameters = general_proc.call attrs = merge_attrs(general_attrs, overriding_attrs) overriding_default = overriding_parameters.delete(:default) params = merge_parameter_hashes(general_parameters, overriding_parameters) # The overrider should provide its :default as the new # 'default_content' if overriding_default params[:default] = if general_parameters[:default] proc do |default| overriding_default.call(proc { new_context { concat(general_parameters[:default].call(default)) } } ) end else proc do |default| overriding_default.call(default) end end end [attrs, params] end end end end |
#new_context ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 288 def new_context ctx = [ @_this, @_this_parent, @_this_field, @_this_type, @_form_field_path, @_form_field_paths_by_object ] @_this_type = nil res = nil outer_res = @view.with_output_buffer { res = yield } Rails.logger.error("new_context: #{caller.first}") if !outer_res.blank? && outer_res.to_s != res.to_s @_this, @_this_parent, @_this_field, @_this_type, @_form_field_path, @_form_field_paths_by_object = ctx res.to_s end |
#new_field_context(field_path, new_this = nil) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 335 def new_field_context(field_path, new_this=nil) new_context do path = if field_path.is_a? String field_path.split('.') else Array(field_path) end if new_this raise ArgumentError, "invlaid context change" unless path.length == 1 @_this_parent, @_this_field, @_this = this, path.first, new_this else parent, field, obj = Dryml.get_field_path(this, path) @_this, @_this_parent, @_this_field = obj, parent, field end if @_form_field_path @_form_field_path += path @_form_field_paths_by_object[@_this] = @_form_field_path end yield end end |
#new_object_context(new_this) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 306 def new_object_context(new_this) new_context do if new_this.respond_to?(:origin) refl = (new_this.origin && new_this.origin_attribute.is_a?(Symbol) && new_this.origin.class.respond_to?(:reflections) && new_this.origin.class.reflections[new_this.origin_attribute]) if refl.nil? || refl.macro==:belongs_to || refl.macro==:has_one @_this_parent, @_this_field = new_this.origin, new_this.origin_attribute else # See bug #989 for more discussion. The commented out # section is more 'correct', but it is expensive and since # nobody really ran into this before, setting to nil seems # more appropriate. @_this_parent, @_this_field = nil, nil #@_this_parent = new_this.origin.send(new_this.origin_attribute) #@_this_field = @_this_parent.index(new_this) || @_this_parent.length end else @_this_parent, @_this_field = [nil, nil] end @_this = new_this # We might have lost track of where 'this' is relative to the form_this # check if this or this_parent are objects we've seen before in this form @_form_field_path = find_form_field_path(new_this) if @_form_field_path yield end end |
#override_and_call_tag(the_tag, general_attributes, general_parameters, overriding_attributes, overriding_parameters) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 496 def override_and_call_tag(the_tag, general_attributes, general_parameters, overriding_attributes, overriding_parameters) attributes = overriding_attributes ? merge_attrs(general_attributes, overriding_attributes) : general_attributes if overriding_parameters overriding_default_content = overriding_parameters.delete(:default) parameters = general_parameters.merge(overriding_parameters) else parameters = general_parameters end default_content = parameters[:default] if the_tag.is_one_of?(String, Symbol) && the_tag.to_s.in?(Dryml.) body = if overriding_default_content new_context { overriding_default_content.call(proc { default_content.call(nil) if default_content }) } elsif default_content new_context { default_content.call(nil) } else nil end element(the_tag, attributes, body) else if default_content || overriding_default_content d = if overriding_default_content proc { |default| overriding_default_content.call(proc { default_content.call(default) if default_content }) } else proc { |default| default_content.call(default) if default_content } end parameters = parameters.merge(:default => d) end if the_tag.is_one_of?(String, Symbol) # It's a defined DRYML tag send(the_tag, attributes, parameters) else # It's a proc - restoring a replaced parameter the_tag.call(attributes, parameters) end end end |
#parse_for_type(attributes) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 221 def parse_for_type(attributes) t = attributes[:for_type] if t.nil? nil elsif t.is_a?(Class) t elsif t =~ /^[A-Z]/ t.constantize elsif t =~ /^[a-z]/ && defined?(HoboFields.to_class) HoboFields.to_class(t) else nil end end |
#part_contexts_storage_uncoded ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 592 def part_contexts_storage_uncoded PartContext.client_side_storage_uncoded(@_part_contexts, session) end |
#path_for_form_field ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 62 def path_for_form_field @_form_field_path.nil? and raise Dryml::DrymlException, "DRYML cannot provide the correct form-field name here (this_field = #{this_field.inspect}, this = #{this.inspect})" @_form_field_path end |
#refresh_part(encoded_context, session, dom_id) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 194 def refresh_part(encoded_context, session, dom_id) context = Dryml::PartContext.for_refresh(encoded_context, @this, session) with_part_context(context) do send("#{context.part_name}_part", *context.locals) end end |
#register_form_field(name) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 409 def register_form_field(name) scope.form_field_names << name end |
#remove_classes!(attributes, *remove_classes) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 128 def remove_classes!(attributes, *remove_classes) if attributes[:class] attributes[:class] = (attributes[:class].split - remove_classes).join(' ') end attributes end |
#render_tag(tag_name, attributes) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 596 def render_tag(tag_name, attributes) method_name = tag_name.to_s.gsub('-', '_') if respond_to?(method_name) send(method_name, attributes).strip else false end end |
#repeat_attribute(string_or_array) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 275 def repeat_attribute(string_or_array) res = nil if string_or_array.instance_of?(String) new_field_context(string_or_array) do res = context_map { yield } end else res = context_map(string_or_array) { yield } end res.safe_join end |
#scope ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 161 def scope @_scoped_variables end |
#session ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 640 def session @view ? @view.session : {} end |
#this_field_reflection ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 102 def this_field_reflection this.try.proxy_association._?.reflection || (this_parent && this_field && this_parent.class.respond_to?(:reflections) && this_parent.class.reflections[this_field.to_sym]) end |
#this_key=(key) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 69 def this_key=(key) @_this_key = key end |
#this_type ⇒ Object
The type of this, or when this is nil, the type that would be expected in the current field
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# File 'lib/dryml/template_environment.rb', line 75 def this_type @_this_type ||= if this == false || this == true Hobo::Boolean elsif this this.class elsif this_parent && this_field && (parent_class = this_parent.class).respond_to?(:attr_type) type = parent_class.attr_type(this_field) if type.is_a?(ActiveRecord::Reflection::AssociationReflection) reflection = type if reflection.macro == :has_many Array elsif reflection.[:polymorphic] # All we know is that it will be some active-record type ActiveRecord::Base else reflection.klass end else type end else # Nothing to go on at all Object end end |
#typed_id(object = nil, attribute = nil) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 166 def typed_id(object=nil, attribute=nil) if object.nil? # nothing passed -- use context if this_parent && this_field && !this_parent.respond_to?(:member_class) object, attribute = this_parent, this_field else object = this end end id = if (!object.is_a?(ActiveRecord::Relation) && typed_id = object.try.typed_id) typed_id else "this" end attribute ? "#{id}:#{attribute}" : id end |
#with_form_context(form_this = this, form_field_path = [form_this.class.name.underscore]) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 396 def with_form_context(form_this=this, form_field_path=[form_this.class.name.underscore]) ctx = [@_form_this, @_form_field_path, @_form_field_paths_by_object] @_form_this = form_this @_form_field_path = form_field_path @_form_field_paths_by_object = { form_this => form_field_path } res = scope.new_scope :in_form => true, :form_field_names => [] do yield end @_form_this, @_form_field_path, @_form_field_paths_by_object = ctx res end |
#with_part_context(context, &block) ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 203 def with_part_context(context, &block) this, this_field = context.this, context.this_field b = if context.form_field_path proc { with_form_context(:unknown, context.form_field_path, &block) } else block end if this && this_field new_object_context(this) { new_field_context(this_field, &b) } elsif this new_object_context(this, &b) else new_context(&b) end end |
#yield_output_buffer ⇒ Object
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# File 'lib/dryml/template_environment.rb', line 299 def yield_output_buffer res = nil @view.with_output_buffer { res = yield } res.to_s end |