Juan Rodriguez
cebdfb35d7
- store and redirect urls without protocol - update README - increment counter with SQL COALESCE - add linksHelper - update tests
35 lines
856 B
Ruby
35 lines
856 B
Ruby
# frozen_string_literal: true
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class Link < ApplicationRecord
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validates :url, presence: true
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validates :slug, uniqueness: true
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validates :url,
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format: {
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with: %r{\A(https?://)?(www\.)?([a-zA-Z0-9_-]+\.)+[a-zA-Z]{2,}(\.[a-zA-Z]{2,})?([/?#][^\s]*)?\z}i,
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message: 'must be a valid URL'
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}
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validates :url, length: { within: 3..30_000, on: :create, message: 'max length is 30000' }
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before_validation :generate_slug
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def parsed_url
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"https://#{url}"
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end
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def generate_slug(attempts = 0)
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return if slug.present? || attempts == 3
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# Number of combinations 62P6
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generated_slug = SecureRandom.alphanumeric(6)
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if Link.exists?(slug: generated_slug)
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generate_slug(attempts + 1)
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else
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self.slug = generated_slug
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end
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end
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belongs_to :user, optional: true
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end
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