Class: Baza::ModelCustom

Inherits:
Object
  • Object
show all
Defined in:
lib/baza/model_custom.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data, _args) ⇒ ModelCustom

Returns a new instance of ModelCustom.



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# File 'lib/baza/model_custom.rb', line 86

def initialize(data, _args)
  if data.is_a?(Hash)
    @data = Knj::ArrayExt.hash_sym(data)
    @id = id
  else
    @id = data
    reload
  end
end

Class Method Details

.add(d) ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 69

def self.add(d)
  @events.call(:add, d)
end

.classname ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 65

def self.classname
  name.split("::").last
end

.datarow_init(d) ⇒ Object

Initializes variables on the class from objects.



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# File 'lib/baza/model_custom.rb', line 10

def self.datarow_init(d)
  @@ob = d.ob
  @@db = d.db
end

.events ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 53

def self.events
  unless @events
    @events = Knj::Event_handler.new
    @events.add_event(name: :add, connections_max: 1)
    @events.add_event(name: :update, connections_max: 1)
    @events.add_event(name: :data_from_id, connections_max: 1)
    @events.add_event(name: :delete, connections_max: 1)
  end

  @events
end

.has_one(arr) ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 15

def self.has_one(arr)
  arr.each do |val|
    methodname = nil
    colname = nil
    classname = nil

    if val.is_a?(Symbol)
      classname = val
      methodname = val.to_s.downcase.to_sym
      colname = "#{val.to_s.downcase}_id".to_sym
    elsif val.is_a?(Array)
      classname, colname, methodname = *val
    elsif val.is_a?(Hash)
      classname = val[:class]
      colname = val[:col]
      methodname = val[:method]
    else
      raise "Unknown argument-type: '#{arr.class.name}'."
    end

    methodname = classname.to_s.downcase unless methodname
    colname = "#{classname.to_s.downcase}_id".to_sym unless colname

    define_method(methodname) do
      return @@ob.get_try(self, colname, classname)
    end

    methodname_html = "#{methodname}_html".to_sym
    define_method(methodname_html) do |*args|
      obj = send(methodname)
      return @@ob.events.call(:no_html, classname) unless obj

      raise "Class '#{classname}' does not have a 'html'-method." unless obj.respond_to?(:html)
      return obj.html(*args)
    end
  end
end

.table ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 73

def self.table
  name.split("::").last
end

Instance Method Details

#[](key) ⇒ Object

Returns a key from the hash that this object is holding or raises an error if it doesnt exist.



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# File 'lib/baza/model_custom.rb', line 111

def [](key)
  raise "No data spawned on object." unless @data
  raise "No such key: '#{key}'. Available keys are: '#{@data.keys.sort.join(", ")}'." unless @data.key?(key)
  @data[key]
end

#delete ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 140

def delete
  self.class.events.call(:delete, Knj::Hash_methods.new(object: self))
end

#deleted? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/baza/model_custom.rb', line 77

def deleted?
  return true unless @data
  false
end

#destroy ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 144

def destroy
  @data = nil
end

#each(&args) ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 148

def each(&args)
  @data.each(&args)
end

#id ⇒ Object

Returns the ID of the object.



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# File 'lib/baza/model_custom.rb', line 118

def id
  self[:id]
end

#is_knj? ⇒ Boolean

Used to determine if this is a knj-datarow-object.

Returns:

  • (Boolean) 


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# File 'lib/baza/model_custom.rb', line 5

def is_knj?
  true
end

#name ⇒ Object Also known as: title

Returns the name of the object, which can be taken from various data or various defined methods.



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# File 'lib/baza/model_custom.rb', line 123

def name
  if @data.key?(:title)
    return @data[:title]
  elsif @data.key?(:name)
    return @data[:name]
  end

  obj_methods = self.class.instance_methods(false)
  [:name, :title].each do |method_name|
    return method(method_name).call if obj_methods.index(method_name)
  end

  raise "Couldnt figure out the title/name of the object on class #{self.class.name}."
end

#reload ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 96

def reload
  raise "No 'data_from_id'-event connected to class." unless self.class.events.connected?(:data_from_id)
  data = self.class.events.call(:data_from_id, Knj::Hash_methods.new(id: @id))
  raise "No data was received from the event: 'data_from_id'." unless data
  raise "Data expected to be a hash but wasnt: '#{data.class.name}'." unless data.is_a?(Hash)
  @data = Knj::ArrayExt.hash_sym(data)
end

#table ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 82

def table
  self.class.table
end

#to_hash ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 152

def to_hash
  @data.clone
end

#update(data) ⇒ Object 



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# File 'lib/baza/model_custom.rb', line 104

def update(data)
  ret = self.class.events.call(:update, Knj::Hash_methods.new(object: self, data: data))
  reload
  ret
end