如何使用rails在列视图中显示“特定”数据？

In my View I have a table that contains 3 Columns (Product Name, POC, Date). I have 3 date values (est_delivery_date, actual_receive_date, actual_delivery_date) and I just need 1 of them displayed in the "Date" Column based on the following logic:In my View I have a table that contains 3 Colum