Class: Mxrb::Semantic::AddEntityPlan

Inherits:
Object
  • Object
show all
Defined in:
lib/mxrb/semantic/domain_mutator.rb

Overview

Plan that adds a new entity to a module's domain model.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(project:, module_name:, domain_unit_id:, entity_def:) ⇒ AddEntityPlan

Returns a new instance of AddEntityPlan.



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# File 'lib/mxrb/semantic/domain_mutator.rb', line 176

def initialize(project:, module_name:, domain_unit_id:, entity_def:)
  @project        = project
  @module_name    = module_name
  @domain_unit_id = domain_unit_id
  @entity_def     = entity_def
  @applied        = false
  @changes = ["add entity #{module_name}.#{entity_def[:name]}"].freeze
end

Instance Attribute Details

#changes ⇒ Object (readonly)

Returns the value of attribute changes.



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# File 'lib/mxrb/semantic/domain_mutator.rb', line 174

def changes
  @changes
end

#entity_def ⇒ Object (readonly)

Returns the value of attribute entity_def.



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# File 'lib/mxrb/semantic/domain_mutator.rb', line 174

def entity_def
  @entity_def
end

#module_name ⇒ Object (readonly)

Returns the value of attribute module_name.



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# File 'lib/mxrb/semantic/domain_mutator.rb', line 174

def module_name
  @module_name
end

Instance Method Details

#applied? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mxrb/semantic/domain_mutator.rb', line 186

def applied? = @applied

#apply! ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/mxrb/semantic/domain_mutator.rb', line 188

def apply!
  raise ArgumentError, "plan was already applied" if @applied

  @project.mpr.transaction do
    raw = @project.raw_unit(@domain_unit_id)
    raise ArgumentError, "domain model unit not found" unless raw

    doc      = @project.parse_bson(raw)
    entities = DomainMutator.extract_entities(doc)
    existing_names = entities.map { (_1["name"] || _1["Name"]).to_s }
    raise ArgumentError, "entity #{@entity_def[:name]} already exists in #{@module_name}" \
      if existing_names.include?(@entity_def[:name].to_s)

    entity                    = Model::Entity.new
    entity.id                 = SecureRandom.uuid
    entity.name               = @entity_def[:name].to_s
    entity.qualified_name     = "#{@module_name}.#{@entity_def[:name]}"
    entity.documentation      = @entity_def.fetch(:documentation, "").to_s
    entity.data_storage_guid  = SecureRandom.uuid
    entity.export_level       = "Hidden"
    entity.persistable        = !@entity_def[:non_persistent]
    entity.location           = { x: (entities.size % 4) * 220, y: (entities.size / 4) * 160 }
    entity.access_rules       = []

    attrs = Array(@entity_def[:attributes]).map.with_index do |attr_def, i|
      a                   = Model::Attribute.new
      a.id                = SecureRandom.uuid
      a.name              = attr_def[:name].to_s
      a.documentation     = attr_def.fetch(:documentation, "").to_s
      a.type              = attr_def.fetch(:type, :string).to_sym
      a.default_value     = attr_def[:default]&.to_s || ""
      a.data_storage_guid = SecureRandom.uuid
      a.export_level      = "Hidden"
      a
    end
    entity.instance_variable_set(:@attributes, attrs)

    entities_key = DomainMutator.entities_key(doc)
    doc[entities_key] = IO::BsonCodec.build_array(entities + [entity.to_bson])
    @project.mpr.update_unit(@domain_unit_id, doc)
  end

  @project.refresh!
  @applied = true
  self
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mxrb/semantic/domain_mutator.rb', line 185

def empty?   = false