Class: WatermelonDbSync::SyncPush

Inherits:
Sync
  • Object
show all
Defined in:
lib/watermelon_db_sync/sync_push.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Sync

last_global_seqs, next_global_seqs

Constructor Details

#initialize(params) ⇒ SyncPush 



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# File 'lib/watermelon_db_sync/sync_push.rb', line 6

def initialize(params)
  @models = WatermelonDbSync.configuration.sync_models
  @params = params
  @data = {last_global_seqs:0}
  @push_id = rand(1..1_000_000_000)
end

Instance Attribute Details

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/watermelon_db_sync/sync_push.rb', line 4

def data
  @data
end

#models ⇒ Object

Returns the value of attribute models.



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# File 'lib/watermelon_db_sync/sync_push.rb', line 4

def models
  @models
end

#params ⇒ Object

Returns the value of attribute params.



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# File 'lib/watermelon_db_sync/sync_push.rb', line 4

def params
  @params
end

Instance Method Details

#except_data(data) ⇒ Object 



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# File 'lib/watermelon_db_sync/sync_push.rb', line 79

def except_data(data)
  data.except("version", "version_created", "created_at_server", "updated_at_server", "deleted_at_server", "push_id", "_status", "_changed")
end

#has_conflict_version? ⇒ Boolean 



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# File 'lib/watermelon_db_sync/sync_push.rb', line 83

def has_conflict_version?
    conflict = false
    @models.each do |model|
    
    #keep original object @params
    params = Marshal.load(Marshal.dump(@params))
    table = params[model.tableize]
    if (params.keys.include? eval(model).table_name)
      collect_ids = table["created"]

      if table["updated"].present?
        updated = table["updated"]
        collect_ids.concat(updated)
      end

      collect_ids = collect_ids&.map{|d|d["id"]}
      collect_ids.concat(table["deleted"]) if table["deleted"].present? 
      conflict = eval(model).with_deleted
                          .where(id: collect_ids)
                          .where("version_created > #{@params["last_pulled_version"]} OR version > #{@params["last_pulled_version"]}").exists?
    end
      break if conflict
    end
    return conflict
end

#push ⇒ Object 



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# File 'lib/watermelon_db_sync/sync_push.rb', line 13

def push
  begin
      if has_conflict_version?
        @data[:error_code] = "WDBS2"
        raise StandardError.new("the data has a conflict version, please pull first")
      else
        ActiveRecord::Base.transaction do
          @models.each do |model|
            self.submit_records!(model) if @params.keys.include? eval(model).table_name
          end
            @data[:success] = true
            sync_pull = SyncPull.new(last_pulled_version: @params["last_pulled_version"], push_id: @push_id)
            sync_pull.pull
            @data[:response] = sync_pull.data[:response]
            @data[:last_global_seqs] = sync_pull.data[:last_global_seqs]
        end
      end
  rescue StandardError => e
    @data[:success] = false
    @data[:message] = e.message
  end
end

#submit_records!(model) ⇒ Object 



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# File 'lib/watermelon_db_sync/sync_push.rb', line 37

def submit_records!(model)
  table = @params[model.tableize]
  table["created"]&.each do |data|
    data = except_data(data)
    data["push_id"] = @push_id

    find_or_new = eval(model).find(data["id"]) rescue nil
    if find_or_new.blank?
      find_or_new = eval(model).new(data)
      find_or_new.id = data["id"]
      find_or_new.created_at = data["created_at"]
      find_or_new.updated_at = data["updated_at"]
      find_or_new.save!
    else
      find_or_new.update!(data)
    end
  end

  table["updated"]&.each do |data|
    data = except_data(data)
    data["push_id"] = @push_id

    find_record = eval(model).find(data["id"]) rescue nil

    if find_record.nil? && eval(model).only_deleted.find(data["id"])
      @data[:error_code] = "WDBS1"
      raise StandardError.new("id=#{data["id"]} of the #{model} was deleted, please pull first")
    end
    find_record.update!(data.except("id"))
  end

  table["deleted"]&.each do |data|
    find_record = eval(model).find(data) rescue nil

    if find_record.present?
      find_record.update_column(:push_id, @push_id)
      find_record.destroy
    end
  end
  
end