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Contents
require 'filesize'
class Image::Base < Kuppayam::ApplicationRecord
# Constants
UPLOAD_LIMIT = 1048576 # this is in bytes which is equivalent to 1 megabyte
INSTRUCTIONS = [
"the filename should be in .jpg / .jpeg or .png format",
"the image dimensions are smaller than <strong>750 x 368 Pixels</strong>, (Portrait Format). (most cameras and camera phones will produce images bigger than this)",
"the file size is less than 20 Kb, or bigger than <strong>1 MB</strong>"
]
self.table_name = "images"
self.inheritance_column = :image_type
attr_accessor :crop_x, :crop_y, :crop_w, :crop_h
# Validations
validates :image, :presence => true
validates :imageable, :presence => true
validate :check_file_size
# Associations
belongs_to :imageable, :polymorphic => true #, optional: false
# Callbacks
after_save :crop_image
# ------------------
# Class Methods
# ------------------
# ------------------
# Instance Methods
# ------------------
def crop_image
image.recreate_versions! if crop_x.present?
end
def check_file_size
if image && image.file && image.file.size.to_f > self.class::UPLOAD_LIMIT
errors.add(:image, "You cannot upload an image greater than #{Filesize.from(self.class::UPLOAD_LIMIT.to_s+ " b").pretty}")
end
end
def display_name
"#{id} - #{self.class.name.split('::').last.titleize}"
end
end
Version data entries
8 entries across 8 versions & 1 rubygems