amazing search on ransack

<%= search_form_for @q.present? ? @q : Requesting.ransack() do |f| %>

  <div class="field">
		<%= f.search_field :guid_cont, class: "form-control", placeholder: "Anything..." %>
	</div>

  <div class="field">
		
	</div>
  <div class="field">
  	<%= f.label :fake_requestings_lab_num_in, "Account ID" %> &nbsp; 
	  <div class="row">
			<div class='col-md-5'>
				<%= f.select(:fake_requestings_num_in, options_from_collection_for_select(Model.all, :id, :name, @q.fake_requestings_num_in),{}, {class:"selecting_a_varios_requesting", :multiple => true, style: "width: 720px"}) %>
			</div>
		</div>
	</div>

  <div class="field">
		<%= f.label :fake_requestings_agent_name, "Type" %>
	  <%= f.select(:fake_requestings_agent_name_eq, FakeRequesting.select(:agent_name).where("length(agent_name) < 30 AND created_at > ? ", 3.months.ago).distinct.collect {|m| [ m.agent_name] },{include_blank: true}, {class: "form-control"}) %>
	</div>

  <div class="field">
		<%= f.label :created_at_gteq, "Date range" %>

	  <div class="row">
			<div class='col-md-5'>
		        <div class='input-group date' id='datetimepicker6'>
								<%= f.text_field :created_at_gteq, {class: "form-control"} %>
		            <span class="input-group-addon">
		                <span class="glyphicon glyphicon-calendar"></span>
		            </span>
		        </div>
	    </div>

	    <div class='col-md-5'>
		        <div class='input-group date' id='datetimepicker7'>
								<%= f.text_field :created_at_lteq, {class: "form-control"} %>
		            <span class="input-group-addon">
		                <span class="glyphicon glyphicon-calendar"></span>
		            </span>
		        </div>
	    </div>

			<script type="text/javascript">
			    $(function () {
			        $('#datetimepicker6').datetimepicker({format: 'YYYY-MM-DD HH:mm:ss'});
			        $('#datetimepicker7').datetimepicker({
									format: 'YYYY-MM-DD HH:mm:ss',
			            useCurrent: false //Important! See issue #1075
			        });
			        $("#datetimepicker6").on("dp.change", function (e) {
			            $('#datetimepicker7').data("DateTimePicker").minDate(e.date);
			        });
			        $("#datetimepicker7").on("dp.change", function (e) {
			            $('#datetimepicker6').data("DateTimePicker").maxDate(e.date);
			        });
			    });
			</script>
		</div>
	</div>
		

  <div class="field">
		<%= f.submit class: "btn btn-primary" %> <%= link_to "Clear Search", requestings_path, class:"btn btn-default" %>
<% end %>
	</div>