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c5e67726fd
This is a major change to draft internals. Previously there were quite a few cases where the draft system would say "draft saved", when in fact we just skipped saving. This commit ensures the draft system deals with draft ownership handover in a predictable way. For example: - Window 1 editing draft - Window 2 editing same draft at the same time Previously we would allow window 1 and 2 to just fight on the same draft each window overwriting the same draft over an over. This commit introduces an ownership concept where either window 1 or 2 win and user is prompted on the loser window to reload screen to correct the issue This also corrects edge cases where a user could have multiple browser windows open and posts in 1 window, later to post in the second window. Previously drafts would break in the second window, this corrects it.
76 lines
2.2 KiB
Ruby
76 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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class DraftController < ApplicationController
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requires_login
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skip_before_action :check_xhr, :preload_json
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def show
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seq = params[:sequence] || DraftSequence.current(current_user, params[:draft_key])
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render json: { draft: Draft.get(current_user, params[:draft_key], seq), draft_sequence: seq }
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end
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def update
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sequence =
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begin
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Draft.set(
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current_user,
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params[:draft_key],
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params[:sequence].to_i,
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params[:data],
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params[:owner]
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)
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rescue Draft::OutOfSequence
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begin
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if !Draft.exists?(user_id: current_user.id, draft_key: params[:draft_key])
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Draft.set(
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current_user,
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params[:draft_key],
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DraftSequence.current(current_user, params[:draft_key]),
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params[:data],
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params[:owner]
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)
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else
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raise Draft::OutOfSequence
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end
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rescue Draft::OutOfSequence
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render_json_error I18n.t('draft.sequence_conflict_error.title'),
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status: 409,
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extras: {
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description: I18n.t('draft.sequence_conflict_error.description')
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}
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return
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end
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end
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json = success_json.merge(draft_sequence: sequence)
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if data = JSON::parse(params[:data])
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# this is a bit of a kludge we need to remove (all the parsing) too many special cases here
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# we need to catch action edit and action editSharedDraft
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if data["postId"].present? && data["originalText"].present? && data["action"].to_s.start_with?("edit")
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post = Post.find_by(id: data["postId"])
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if post && post.raw != data["originalText"]
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conflict_user = BasicUserSerializer.new(post.last_editor, root: false)
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render json: json.merge(conflict_user: conflict_user)
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return
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end
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end
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end
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render json: json
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end
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def destroy
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begin
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Draft.clear(current_user, params[:draft_key], params[:sequence].to_i)
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rescue Draft::OutOfSequence
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# nothing really we can do here, if try clearing a draft that is not ours, just skip it.
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end
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render json: success_json
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end
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end
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