99 lines
2.1 KiB
Ruby
99 lines
2.1 KiB
Ruby
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# A wrapper class around Store that handles temporary attachment uploads
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# and provides an interface for those.
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class UploadCache
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attr_reader :id
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# Initializes a UploadCache for a given form_id.
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#
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# @example
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# cache = UploadCache.new(form_id)
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#
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# @return [UploadCache]
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def initialize(id)
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# conversion to Integer is required for proper Store#o_id comparsion
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@id = id.to_i
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end
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# Adds a Store item with the given attributes for the form_id.
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#
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# @see Store#add
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#
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# @example
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# cache = UploadCache.new(form_id)
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# store = cache.add(
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# filename: file.original_filename,
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# data: file.read,
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# preferences: {
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# 'Content-Type' => 'application/octet-stream'
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# }
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# )
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#
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# @return [Store] the created Store item
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def add(args)
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Store.add(
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args.merge(
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object: store_object,
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o_id: id,
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)
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)
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end
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# Provides all Store items associated to the form_id.
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#
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# @see Store#list
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#
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# @example
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# attachments = UploadCache.new(form_id).attachments
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#
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# @return [Array<Store>] an enumerator of Store items
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def attachments
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Store.list(
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object: store_object,
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o_id: id,
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)
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end
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# Removes all Store items associated to the form_id.
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#
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# @see Store#remove
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#
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# @example
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# UploadCache.new(form_id).destroy
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#
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def destroy
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Store.remove(
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object: store_object,
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o_id: id,
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)
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end
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# Removes all Store items associated to the form_id.
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#
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# @see Store#remove
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#
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# @example
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# UploadCache.new(form_id).remove_item(store_id)
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#
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# @raise [Exceptions::UnprocessableEntity] in cases where a Store item should get deleted that is not an UploadCache item
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#
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def remove_item(store_id = nil)
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store = Store.find(store_id)
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if store.o_id != id || store.store_object_id != store_object_id
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raise Exceptions::UnprocessableEntity, "Attempt to delete Store item #{store_id} that is not bound to UploadCache object"
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end
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Store.remove_item(store_id)
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end
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private
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def store_object
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self.class.name
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end
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def store_object_id
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Store::Object.lookup(name: store_object).id
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end
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end
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