I'm using describe functions to retrieve a DescribeFieldResult. Now on an Object I have two fields: one is a formula and the other is a rollup-summary. How can I differentiate between these two "types"?

I found already, that both have isCalulate=true but that is not enough to tell them apart.

Any ideas?


You can tell because when you describe a Rollup Summary Field, its describe returns null when you call getCalculatedFormula(), unlike a Formula Field.

system.assertEquals(null, rollupDescribe.getCalculatedFormula());
system.assertNotEquals(null, formulaDescribe.getCalculatedFormula());
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  • Theorycrafting. Heh, I like that. – Adrian Larson Aug 4 '17 at 19:38
  • Thanks guys, that works perfectly. Might there be a way to find out about what is being rolled-up, like which field on which child object? – Uwe Heim Aug 4 '17 at 19:40
  • @UweHeim Pretty sure you're SOL there unless you want to break out one of the APIs. Even then I'm not sure what you would actually retrieve. – Adrian Larson Aug 4 '17 at 19:42

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