I have a list like this:
List tripIds = new ArrayList()
def sql = Sql.newInstance("jdbc:mysql://localhost:3306/steer", "root", "", "com.mysql.jdbc.Driver")
sql.eachRow("SELECT trip.id from trip JOIN department WHERE organization_id = trip.client_id AND department.id = 1") {
println "Gromit likes ${it.id}"
tripIds << it.id
}
On printing tripids gives me value:
[1,2,3,4,5,6,]
I want to convert this list to simple string like:
1,2,3,4,5,6
How can I do this?
Use join
, e.g.,
tripIds.join(", ")
Tangential
If you want to create a list from another list you generally want something like map
or collect
as opposed to manually creating a list and appending to it, e.g. (untested):
def sql = Sql.newInstance("jdbc:mysql://localhost:3306/steer", "root", "", "com.mysql.jdbc.Driver")
def tripIds = sql.map { it.id }
Or if you only care about the resulting string:
def tripIds = sql.map { it.id }.join(", ")