Method: WandoGrids#wando_grid_in_json

Defined in:
lib/wando_grid.rb

#wando_grid_in_json(params, object, option, toLoadData) ⇒ Object

构造JSON格式的Grid记录



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# File 'lib/wando_grid.rb', line 20

def wando_grid_in_json(params, object, option, toLoadData)
  unless toLoadData
    return [], []
  end

  order = "updated_at DESC"
  unless params[:sort].nil?
    JSON.parse(params[:sort]).each do |k|
      if object.column_names.include?(k["property"])
        order = k["property"].to_s + " " + k["direction"].to_s
      else
        order = 'id' + ' ' + k["direction"].to_s
      end
    end
  end

  default_options = {
                      :order  => params[:order],
                      :offset => params[:offeset].to_i,
                      :start  => params[:start].to_i || 0,
                      :limit  => params[:limit].to_i || 20
                    }
  fields, column_name, result = [], [], []

  relations = JSON.parse(params[:columnsConfig])
  relations.each do |o ,e|
    fields << e
    column_name << o
  end

  column_name.push("id")
  offset = default_options[:offeset].to_i + default_options[:start].to_i
  records = object.where(option)
                  .order(order)
                  .limit(params[:limit])
                  .offset(offset)
                  .search(build_filter_options(object, params[:filter]))
                  .result(:distinct => true)
                  .provide(*column_name)

  records.each do |r|
    result << Hash[r.map {|k, v| [relations[k], v] }]
  end

  return object.where(option), result
end