for ( j=0, jLen=oColumn.asSorting.length ; j<jLen ; j++ )
在数据表的第 6706 行...
我几乎一字不差地复制了有关该主题的railscast 。所以oColumn
是未定义的。互联网告诉我,我需要拥有<thead>
和<th>
价值观......
看法:
<table id="companyBoxList" class="display" data-source="<%= comp_boxes_path(format: "json") %>"
<thead>
<tr>
<th>uid</th>
<th>length</th>
<th>width</th>
<th>height</th>
<th>weight</th>
<th>trips</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
这是新课程的副本。同样,几乎复制了 railscast
box_database.rb
class BoxesDatatable
delegate :params, :h, :link_to, :number_to_currency, to: :@view
def initialize(view)
@view = view
end
def as_json(options = {})
{
sEcho: params[:sEcho].to_i,
iTotalRecords: Box.count,
iTotalDisplayRecords: boxes.count,
aaData: data
}
end
private
def data
boxes.map do |box|
[
box.uid,
box.length,
box.width,
box.height,
box.weight,
box.trips
]
end
end
def boxes
@boxes ||= fetch_boxes
end
def fetch_boxes
boxes = Box.order("#{sort_column} #{sort_direction}")
boxes = boxes.page(page).per(per_page)
if params[:sSearch].present?
boxes = boxes.where("uid like :search or trips like :search", search: "%#{params[:sSearch]}%")
end
boxes
end
def page
params[:iDisplayStart].to_i/per_page + 1
end
def per_page
params[:iDisplayLength].to_i > 0 ? params[:iDisplayLength].to_i : 10
end
def sort_column
columns = %w[uid length width height weight trips]
columns[params[:iSortCol_0].to_i]
end
def sort_direction
params[:sSortDir_0] == "desc" ? "desc" : "asc"
end
end
javascript(咖啡):
jQuery ->
$('#companyBoxList').dataTable
sPaginationType: "full_numbers"
bJQueryUI: true
bProcessing: true
bServerSide: true
sAjaxSource: $('#companyBoxList').data('source')
通过添加"aoColumns": [null, null, null, null, null, null]
. 但是,这会使标题无效,这违背了目的。这表明读取的标题存在问题,而不是 json,因为数据返回得很好。
想法?