Did you override the dirty_? def?
Derek
On Tue, Jul 28, 2009 at 3:09 PM, Peter Robinett <pe...@bubblefoundry.com>wrote:
>
> Sorry to bump this, but does anyone have any idea why my mac column is
> not being saved to the database, despite the save method returning
> true?
>
> On Jul 22, 9:19 am, Peter Robinett <pe...@bubblefoundry.com> wrote:
> > Because it's unique across systems and maps directly to hardware I'm
> > tracking. But thanks for the equations!
> >
> > Peter
> >
> > On Jul 21, 7:20 pm, jon <jonhoff...@gmail.com> wrote:
> >
> > > This doesn't address your question, so I'll apologize in advance, but
> > > why do you want to use a mac address as a primary key? Also, a mac
> > > address represents six bytes, why not pack into a long? This probably
> > > isn't the most efficient or prettiest way:
> >
> > > def macToLong(mac: String) = java.lang.Long.parseLong(mac.replace
> > > (":",""),16)
> >
> > > def longToMac(mac: Long) = (0 to 5).reverse.map( i => (mac & ((0xff)
> > > << (i * 8).asInstanceOf[Long])) >> (i * 8)).
> > > map( l => String.format("%02x",l.asInstanceOf[Object])).mkString
> > > (":")
> >
> > > println( longToMac(macToLong("00:1d:c9:00:04:9f")))
> >
> > > On Jul 21, 4:19 pm, Peter Robinett <pe...@bubblefoundry.com> wrote:
> >
> > > > I should add that I believe this is because the field isn't being
> > > > marked as dirty and so isn't saved. This is in MappedField:
> > > > def dirty_? = !dbPrimaryKey_? && _dirty_?
> >
> > > > How would I overload it in my object mac definition?
> >
> > > > Thanks,
> > > > Peter
> >
> > > > On Jul 21, 12:30 pm, Peter Robinett <pe...@bubblefoundry.com> wrote:
> >
> > > > > Thanks Derek, but unfortunately it only works halfway: I am able to
> > > > > set MAC address of my new Node and save it (returning true) and my
> > > > > MySQL database row is created, but the mac column is null.
> >
> > > > > Peter
> >
> > > > > On Jul 21, 7:58 am, Derek Chen-Becker <dchenbec...@gmail.com>
> wrote:
> >
> > > > > > I think that this should work, but I haven't tested it:
> >
> > > > > > class Node extends KeyedMapper[String, Node] {
> > > > > > def getSingleton = Node
> > > > > > /* MAC address as primary key */
> > > > > > def primaryKeyField = mac
> > > > > > object mac extends MappedStringIndex(this, 17) {
> > > > > > override def writePermission_? = true
> > > > > > override def dbDisplay_? = true
> > > > > > }
> >
> > > > > > }
> >
> > > > > > Note that primaryKey_? is already set to true in
> MappedStringIndex.
> > > > > > writePermission_? is set to false by default...
> >
> > > > > > Derek
> >
> > > > > > On Mon, Jul 20, 2009 at 7:30 PM, Peter Robinett <
> pe...@bubblefoundry.com>wrote:
> >
> > > > > > > Hi all,
> >
> > > > > > > I'm using Mapper with MAC addresses as my primary keys:
> > > > > > > class Node extends KeyedMapper[String, Node] {
> > > > > > > def getSingleton = Node
> > > > > > > /* MAC address as primary key */
> > > > > > > def primaryKeyField = mac
> > > > > > > object mac extends MappedStringIndex(this, 17) {
> > > > > > > override def dbPrimaryKey_? = true
> > > > > > > override def dbDisplay_? = true
> > > > > > > }
> > > > > > > }
> >
> > > > > > > Unfortunately, if I try to create a new Node and assign a MAC
> address,
> > > > > > > I get an error saying that I don't have permission:
> > > > > > > scala> Node.create.mac("00:1d:c9:00:04:9f")
> > > > > > > java.lang.Exception: Do not have permissions to set this field
> > > > > > > at
> net.liftweb.mapper.MappedField$class.set(MappedField.scala:425)
> > > > > > > at
> net.liftweb.mapper.MappedString.set(MappedString.scala:38)
> > > > > > > at
> net.liftweb.mapper.MappedString$$anonfun$apply$6.apply
> > > > > > > (MappedString.scala:121)
> > > > > > > at
> net.liftweb.mapper.MappedString$$anonfun$apply$6.apply
> > > > > > > (MappedString.scala:121)
> > > > > > > at net.liftweb.util.Full.f...
> >
> > > > > > > How do I go about creating a new Node with the mac address –
> the
> > > > > > > primary key – of my choosing?
> >
> > > > > > > Thanks,
> > > > > > > Peter Robinett
> >
>
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