67 lines
2.7 KiB
Ruby
67 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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module ActionText
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module Attribute
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extend ActiveSupport::Concern
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class_methods do
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# Provides access to a dependent RichText model that holds the body and attachments for a single named rich text attribute.
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# This dependent attribute is lazily instantiated and will be auto-saved when it's been changed. Example:
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#
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# class Message < ActiveRecord::Base
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# has_rich_text :content
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# end
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#
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# message = Message.create!(content: "<h1>Funny times!</h1>")
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# message.content? #=> true
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# message.content.to_s # => "<h1>Funny times!</h1>"
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# message.content.to_plain_text # => "Funny times!"
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#
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# The dependent RichText model will also automatically process attachments links as sent via the Trix-powered editor.
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# These attachments are associated with the RichText model using Active Storage.
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#
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# If you wish to preload the dependent RichText model, you can use the named scope:
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#
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# Message.all.with_rich_text_content # Avoids N+1 queries when you just want the body, not the attachments.
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# Message.all.with_rich_text_content_and_embeds # Avoids N+1 queries when you just want the body and attachments.
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# Message.all.with_all_rich_text # Loads all rich text associations.
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#
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# ==== Options
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#
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# * <tt>:encrypted</tt> - Pass true to encrypt the rich text attribute. The encryption will be non-deterministic. See
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# +ActiveRecord::Encryption::EncryptableRecord.encrypts+. Default: false.
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def has_rich_text(name, encrypted: false)
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class_eval <<-CODE, __FILE__, __LINE__ + 1
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def #{name}
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rich_text_#{name} || build_rich_text_#{name}
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end
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def #{name}?
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rich_text_#{name}.present?
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end
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def #{name}=(body)
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self.#{name}.body = body
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end
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CODE
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rich_text_class_name = encrypted ? "ActionText::EncryptedRichText" : "ActionText::RichText"
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has_one :"rich_text_#{name}", -> { where(name: name) },
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class_name: rich_text_class_name, as: :record, inverse_of: :record, autosave: true, dependent: :destroy
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scope :"with_rich_text_#{name}", -> { includes("rich_text_#{name}") }
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scope :"with_rich_text_#{name}_and_embeds", -> { includes("rich_text_#{name}": { embeds_attachments: :blob }) }
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end
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# Eager load all dependent RichText models in bulk.
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def with_all_rich_text
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eager_load(rich_text_association_names)
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end
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def rich_text_association_names
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reflect_on_all_associations(:has_one).collect(&:name).select { |n| n.start_with?("rich_text_") }
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end
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end
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end
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end
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