Use cases

[richiverse]

Use Case 1 - record level validation:
Say I have 2 fields. "Amount" and "Calculation Type". Amount is always a float, however when calculation type is "Percent", Amount must be bounded from 0 to 100.

Use Case 2 - table level validation:
Say I have multiple records and after grouping certain fields, no duplication can be present.

Use case 3 - Multiple coercion functions:
I need to convert a value to string, and perform a couple of other functions before validation. Any tips here?

Appreciate your help! This is probably one of the coolest python projects I've seen in a while.

[manugarri]

+1

[funkyfuture]

1. http://docs.python-cerberus.org/en/latest/customize.html
2. i don't understand the scenario
3. Proposal: custom coerce-methods #102

@manugarri, can you please elaborate?

[richiverse]

@funkyfuture

For (2):
Say I had a column with 1000 rows and I want to say that all 1000 values in this column are in a table of 25000 rows, how would I do that in cerberus?

Or

How would I determine 1 or more columns in aggregate are unique?

[nicolaiarocci]

Cerberus is only meant to validate one row against a set of rules. Not really designed for such an use case (which seems more suited for a relational database)

[richiverse]

ok thx