我正在尝试创建一个链接列表,该链接在链接中采用供应商名称,并使用该供应商名称导出数据。我知道我现在在模型中输入的内容是错误的,我只是不确定如何正确传递供应商......抱歉,如果这很模糊,这是我到目前为止的代码:
控制器
def export_supplier
@software = Software.find_supplier
software = CSV.generate do |csv|
# for the headers of the csv file
csv << ["Quantity", "Item Number", "Item Description"]
# the chosen rows from the database
@software.each do |s|
csv << [s.amount, s.productcode, s.description]
end
end
send_data(software, :type => 'text/csv', :filename => 'software.csv')
end
视图
<% @softwares.each do |l| %>
<li>
<%= link_to "#{l.supplier}", :controller =>'softwares', :action => 'export_supplier'%>
</li>
<% end %>
型
def self.find_supplier
find_by_sql("SELECT s.productcode, s.description, CAST(SUM(l.amount) as UNSIGNED) AS amount
FROM softwares s
LEFT JOIN licenses l ON s.id=l.software_id
WHERE s.supplier = #{l.supplier} AND l.amount > 0
GROUP BY s.supplier, s.vendor, s.title, s.edition")
end
<%= link_to "#{l.supplier}", :controller =>'softwares', :action => 'export_supplier',:supplierid=>l.supplier.id%>
or
如果路由是成员路由
<%= link_to "#{l.supplier}", export_supplier_software_path(software,:supplier_id=>l.supplier.id%>)
如果路由是收集路由
<%= link_to "#{l.supplier}", export_supplier_softwares_path(:supplier_id=>l.supplier.id%>)