Created
September 23, 2011 18:35
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Modelo de disponibilidades
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class Availability < ActiveRecord::Base | |
DEFAULT_RENT = "General" | |
MINIMUM_MINUTES_DURATION = 90 | |
MINIMUN_HOURS_MARGIN = 1 | |
MINIMUN_MINUTES_SEGMENT = 15 | |
belongs_to :rent | |
belongs_to :carpark | |
validates_associated :carpark | |
validates_presence_of :start_time, :end_time | |
#validate :validate_same_day, :validate_times_order, :validate_day_margin, :validate_duration, :validate_overlaps | |
validate :validate_same_day, :validate_times_order, :validate_duration, :validate_overlaps | |
before_validation :ensure_times_not_empty | |
after_validation :check_joins | |
after_save :ensure_has_rent | |
scope :starts_after, ->(date = DateTime.now) { where(['start_time >= ?', date]) } | |
scope :ends_before, ->(date = DateTime.now) { where(['end_time <= ?', date - MINIMUN_MINUTES_SEGMENT.minutes]) } | |
scope :in_same_month, ->(date = DateTime.now) { starts_after(date.beginning_of_month).ends_before(date.end_of_month) } | |
scope :in_same_day, ->(date = DateTime.now) { starts_after(date.beginning_of_day).ends_before(date.end_of_day) } | |
scope :starts_before, ->(date = DateTime.now) { where(['start_time <= ?', date]) } | |
scope :ends_after, ->(date = DateTime.now) { where(['end_time >= ?', date - MINIMUN_MINUTES_SEGMENT.minutes]) } | |
scope :contain, ->(date = DateTime.now) { starts_before(date).ends_after(date) } | |
#scope :starts_at, ->(date = DateTime.now) { where(:start_time => date) } | |
#scope :ends_at, ->(date = DateTime.now) { where(:end_time => date) } | |
scope :not_id, ->(id) { where(['id <> ?',id.to_i]) } | |
def duration_in_seconds | |
fixed_end_time - start_time | |
end | |
def duration_in_minutes | |
duration_in_seconds / 60 | |
end | |
def duration_in_hours | |
duration_in_minutes / 60 | |
end | |
def same_day? | |
start_time.to_date.eql? end_time.to_date | |
end | |
def contain?(date) | |
start_time <= date && fixed_end_time >= date | |
end | |
def start_overlap? | |
!carpark.availabilities.in_same_day(start_time).not_id(id).starts_before(start_time).ends_after(start_time).count.zero? | |
end | |
def end_overlap? | |
!carpark.availabilities.in_same_day(start_time).not_id(id).starts_before(fixed_end_time).ends_after(fixed_end_time).count.zero? | |
end | |
def inner_overlap? | |
!carpark.availabilities.in_same_day(start_time).not_id(id).starts_before(start_time).ends_after(fixed_end_time).count.zero? | |
end | |
def wrapper_overlap? | |
!carpark.availabilities.in_same_day(start_time).not_id(id).starts_after(start_time).ends_before(fixed_end_time).count.zero? | |
end | |
def overlap? | |
start_overlap? || end_overlap? || inner_overlap? || wrapper_overlap? | |
end | |
protected | |
def ensure_times_not_empty | |
self.start_time ||= Date.today | |
self.end_time ||= Date.today | |
end | |
def ensure_has_rent | |
if self.rent.blank? | |
self.rent = self.carpark.rents.find_or_create_by_name DEFAULT_RENT | |
self.save | |
end | |
end | |
def check_joins | |
case errors.count | |
when 1 then | |
if errors.has_key? :start_overlap | |
start_join | |
errors.clear | |
elsif errors.has_key? :end_overlap | |
end_join | |
errors.clear | |
end | |
when 2 then | |
if errors.keys.sort == [:start_overlap, :end_overlap].sort || errors.keys.sort == [:start_overlap, :duration].sort | |
start_join | |
errors.clear | |
elsif errors.keys.sort == [:duration, :end_overlap].sort | |
end_join | |
errors.clear | |
end | |
when 3 then | |
if errors.keys.sort == [:start_overlap, :duration, :end_overlap].sort | |
start_join | |
errors.clear | |
end | |
end | |
return true | |
end | |
def start_join | |
overlaps = carpark.availabilities.not_id(id).contain(start_time) | |
if overlaps.any? | |
overlap = overlaps.first | |
if self.new_record? | |
overlap.end_time = end_time | |
self.destroy | |
overlap.save | |
else | |
self.start_time = overlap.start_time | |
overlap.destroy | |
self.save | |
end | |
end | |
end | |
def end_join | |
overlaps = carpark.availabilities.not_id(id).contain(fixed_end_time) | |
if overlaps.any? | |
overlap = overlaps.first | |
if self.new_record? | |
overlap.start_time = start_time | |
self.destroy | |
overlap.save | |
else | |
self.end_time = overlap.end_time | |
overlap.destroy | |
self.save | |
end | |
end | |
end | |
def validate_same_day | |
errors.add(:end_time, :not_same_day) unless same_day? | |
end | |
def validate_times_order | |
errors.add(:start_time, :start_before_end) if start_time >= fixed_end_time | |
end | |
def validate_day_margin | |
errors.add(:start_time, :invalid_margin_start) if start_time < DateTime.now + MINIMUN_HOURS_MARGIN.hours | |
end | |
def validate_duration | |
# La internacionalización de este error debe ser manual porque no es sobre un atributo real | |
errors.add(:duration, I18n.t('activerecord.errors.models.availability.invalid_duration')) if duration_in_minutes < MINIMUM_MINUTES_DURATION | |
end | |
def validate_overlaps | |
errors.add(:start_overlap, I18n.t('activerecord.errors.models.availability.start_overlap')) if start_overlap? | |
errors.add(:end_overlap, I18n.t('activerecord.errors.models.availability.end_overlap')) if end_overlap? | |
errors.add(:inner_overlap, I18n.t('activerecord.errors.models.availability.inner_overlap')) if inner_overlap? | |
errors.add(:wrapper_overlap, I18n.t('activerecord.errors.models.availability.wrapper_overlap')) if wrapper_overlap? | |
end | |
private | |
def fixed_end_time | |
end_time + MINIMUN_MINUTES_SEGMENT.minutes | |
end | |
end |
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# PUT /carparks/1 | |
# PUT /carparks/1.xml | |
def update | |
@carpark = Carpark.find(params[:id]) | |
respond_to do |format| | |
if @carpark.update_attributes(params[:carpark]) | |
format.html { redirect_to(@carpark, :notice => t('text.flash.model_updated_ok', :name => Carpark.model_name.human)) } | |
format.xml { head :ok } | |
format.js { render :text => "OK" } | |
else | |
format.html { render :action => "edit" } | |
format.xml { render :xml => @carpark.errors, :status => :unprocessable_entity } | |
format.js { render :text => @carpark.errors.full_messages, :status => :unprocessable_entity } | |
end | |
end | |
end |
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Bueno no se si se verá muy claras las validaciones del modelo :-S
Desde el update de los carparks, entran los nested attributes de las availabilities generadas desde el calendario de la vista.