Then, in a split second, I find myself lying in the middle of the street, with my glasses lying three feet away from me. I was biking my way back home thinking to myself the infamous "I am rich, bitch!". Everything went really smoothly (aside from the weather being a little sketchy). So, the first thing I did this morning was grab my bike and set off to the bank to deposit the check into my account. I was really thrilled yesterday after receiving my first paycheck. I'll use MySQL as my database in this example, but the concept applies to any database system.Ĭontinue reading “Adding Formula Fields to a Database with Ruby on Rails” » Author Posted on JCategories Web Tags database, mysql, ror, sql, Web 6 Comments on Adding Formula Fields to a Database with Ruby on Rails Tossed Off My Bike Let's go ahead and create our rails project called teacherexample. In this example, we imagine a teacher wanting to store his students' assignment marks. I'll show you how through a trivial example. If you're using Ruby on Rails for your project, there's a very simple solution you can implement. However, if you are doing calculations on vast amounts of data, having part of this data pre-calculated in a formula field can give you a solid performance boost. You must keep track of updating this value on your own when using the database.īut, this begs the question, why would I want to have a formula field? Can't I just do all my calculations when I am fetching my data with a SQL query? Sure, you can. Unfortunately, there is no standard way of embedding this into the SQL definition of a table. net, C, essential grid, grid, gridcontrol, gridgroupingcontrol, syncfusion 1 Comment on Filtering and Multicolumn Sorting in Syncfusion’s Grid Control Adding Formula Fields to a Database with Ruby on RailsĮvery now and then you might encounter a situation where you need to have a database column that has a value based on a formula consisting of values of other columns. I've been in touch with the folks at Syncfusion and finally reached the following workarounds.Ĭontinue reading “Filtering and Multicolumn Sorting in Syncfusion’s Grid Control” » Author Posted on JCategories C#. Unfortunately, this was very inconvenient for me as the application I worked on is well established and replacing the standard GridControl with the GridGroupingControl would require a tremendous amount of effort. Instead, Syncfusion offers another control, called the GridGroupingControl that have these features. However, as it turns out, the grid does not support filtering or multicolumn sorting out of the box. Last week I was working with a C# application that used Syncfusion's standard grid control and I was trying to add filtering and multicolumn sorting to the grid.
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