> Does TW have methods for reading/writing to custom fields?
store.getValue(tiddler,fieldName)
* returns stored string value for the given fieldname
* returns undefined if fieldname does not exist
store.setValue(tiddler,fieldName,value)
* sets the value of the given field of the tiddler to the value
* fieldnames are case sensitive
* all values are converted and stored as strings
* use a value of null or undefined to remove the field.
* setting a namespace[1] to undefined removes all fields of that
namespace
[1] custom tiddler fields allow for "grouping" fields into
"namespaces" by adding a "spacename." prefix before the fieldname,
like this:
store.setValue("SomeTiddler","somespace.foo","...");
store.setValue("SomeTiddler","somespace.bar","...");
store.setValue("SomeTiddler","somespace.baz","...");
The above code creates three custom fields, all starting with the same
"namespace" prefix.
For most uses, fieldnames that have a namespace prefix are handled the
same as other fields... the prefix is treat as just another part of
the fieldname. However, in addition to simply setting/clearing values
by referencing the individual custom fields one at a time, like this:
store.setValue("SomeTiddler","somespace.foo",null);
store.setValue("SomeTiddler","somespace.bar",null);
store.setValue("SomeTiddler","somespace.baz",null);
you can also use store.setValue(...) to clear an entire namespace in
one call, like this:
store.setValue("SomeTiddler","somespace",null);
enjoy,
-e
Eric Shulman
TiddlyTools / ELS Design Studios
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