String does not contain

Input

value

Validate that value does not contain 'xyz'

validation:

stringDoesNotContain

Ensure string field does not contain specified substring

source:value

parameters

substring

Substring that the field must not contain

Output

result
Pass
Pass
Pass
String field "value" contains unwanted substring "xyz"
String field "value" contains unwanted substring "xyz"
String field "value" contains unwanted substring "xyz"

* Sample inputs run locally in your browser using the same operation logic as Fontana Flow.
Results are illustrative, not connected to a workflow.

Ensure string field does not contain specified substring.

Parameters

• substring (Substring, string, optional) — Substring that the field must not contain. Default: "".

Field selection

• source — Field whose values this operation reads. Use a single field name, a comma-separated list of plain field paths (cash_flow_type, currency) from the multi-select UI, or a regex via Pattern mode. Omit to apply to all fields on the row.
• target — Optional output field. When omitted, the source field is updated in place. Hidden when more than one named source field is selected.

JSON Configuration

{
  "id": "op-stringDoesNotContain",
  "type": "validation",
  "action": "stringDoesNotContain",
  "params": {
    "substring": "xyz"
  },
  "testInputs": [
    "safe text",
    "clean row",
    "allowed value",
    "has xyz inside",
    "prefix xyz",
    "xyz suffix"
  ]
}

Related

• required