Examples

Add Support for Date Find

We already created an index on the acquireDate slot; now all we have to do is notify newtApp of that slot. A QuickTime movie of this example is available.

1. Add the following slot to the newtApplication template:

dateFindSlot: 'acquireDate

2. We also need a routine that provides a one-line summary for found entries. To accomplish this, we will add a FindSoupExcerpt slot to the newtApplication template with the following contents:

func(entry, resultFrame)
begin
   local t := "";

   // set the string, t, to a value based on slots
   // from entry
   if entry.acquireDate then
      t := t && ShortDateStr(entry.acquireDate,
         kFormatDefault);
   if entry.numberInStock then
      t := t && NumberStr(entry.numberInStock);
   t := t && entry.author && entry.title;
   return t;
end;

Note:

Once we make our application stationery-based (see Chapter 11, Stationery), we won't need a FindSoupExcerpt method (the StringExtract of the dataDef will be used instead).

An online version of Programming for the Newton using Macintosh, 2nd ed. Š1996, 1994, Julie McKeehan and Neil Rhodes.

Last modified: 1 DEC 1996