Sanjay Mysoremutt – Software Designer

Grails is pretty fast to get up and running. We mainly need to be clear about one main thing, the domain model. The primary task is to identify the entities in the system as domain classes, and then elaborate on them adding properties. Then define the relationships between them.

Once this is done, we get a ready-made application to start with. Now to really play around with this application, it helps to add some test data. This is also useful to do some initial testing of our domain model, before we add controller logic to it.

Using the CSVReader class outlined here earlier, its easy to add some test data.

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Here’s a useful class that reads a CSV file and returns each row of values. Its based on some regular expressions I found on the net (unfortunately URL got lost, but its a fairly straightforward one to fine). Call back functions to make it a convenient way to read the input CSV file.

// create the object with the input path
def csv = new CsvFileReader(inputFilePath))

//  define a closure that handles each row of data
//  returned as a map of column name (defined by header row)
csv.forEachRow () {
print (it['ColumnName']) }

Here’s the entire code…
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