How to make the field required to fill in on adding a row and on changing it?
You need to enable the Required field parameter.
When it is enabled, Totum ensures that the field does not contain an empty string "" or an empty list $#lc.
What value does the Required not pass?
"" — emptiness.
$#lc — empty list.
If fields have already been added to a simple table with empty values, can we set Required to the field?
Yes, we can. But rows containing an empty value in a mandatory field can only be recalculated by assigning a value to this field.
At what moment will an error occur if the field is left empty?
With any change affecting the recalculation of the unit of measure into which the empty mandatory field falls.
If the same in the calculation or temporary table?
In this case, the entire table will fail with an error.
If an error occurs in the calculated table in a cycle, will the cycle be recalculated?
No, it won't be.
How to set simple restrictions for the data entered into the field?
You can restrict input values using input validation format (regexp).
For example:
^\d+$ — only positive integers including 0.
^[1-9]\d*$ — only positive integers excluding 0.
^(.+@.+\..+|.{0})$ — email format validation.
What is the use of the warning settings for changes in the field?
Additional protection against accidental changes.
In reality, people learn to press OK in such windows automatically, so if you want to draw more attention to this, move the input value to linkToInput:
= : linkToInput(title: "Change Control"; html: "Warning here!"; code: "=: set(table: $#ntn; field: 'h_input_s_pinkodom' = $#input)"; refresh: true; button: "Confirm")
For this, editing is disabled for the field, and a trigger is set on click.
And add the warning to the html parameter.