File Name Validation

Question

Hi, everyone! I have a problem, I'm designing an interface where you can attach a file but the file must have a nomenclature. 
 Example: INVENTARIO (always) PRESENT MONTH PRESENT YEAR 
 INVENTARIO DIC 2023 
 But I tried with the follow code: a!localVariables(
 local!var: {
 "ENERO",
 "FEB"
 },
 local!var2;
 {
 a!fileUploadField(
 saveInto: local!var2,
 value: local!var2,
 label: "File Upload",
 labelPosition: "ABOVE",
 validations: {
 if(
 fv!files.name = {"INVENTARIO" & upper(tostring(datetext(today(), "MMM"))) & upper(tostring(datetext(today(), "YYYY")))},
 {
 "Ingrese un documento nombrad correctamente."
 ),
 }
 )
 }
) 
 
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Mike Schmitt · Accepted Answer

Cool, glad to help. 
 One final thing to add, this is a good example for why I like abstracting certain things like this (like assembling of the validation string) into local variables - it makes it a lot easier to see, understand, and troubleshoot (and re-use if necessary).

Mike Schmitt · Answer

You might want to edit this and sort out whatever funny stuff occurred to its formatting when you pasted it in here, because at present it's basically unreadable.

Mike Schmitt · Answer

that's better. i'm not sure i understand the issue though. are you just saying the validation doesn't work? 
 one thing I do notice is that you seem to have spaces in your preferred naming convention ("inventario dic 2023") but the string you're checking the filename against does not have any spaces built in. 
 That is, this code: 
 ""INVENTARIO" & upper(tostring(datetext(today(), "MMM"))) & upper(tostring(datetext(today(), "YYYY")))" 
 would output "INVENTARIODEC2023", not "INVENTARIO DEC 2023".

Mike Schmitt · Answer

Instead you can try this: 
 a!localVariables(
 local!var2,
 
 {
 a!fileUploadField(
 saveInto: local!var2,
 value: local!var2,
 label: "File Upload",
 labelPosition: "ABOVE",
 validations: {
 if(
 fv!files.name = "INVENTARIO " & upper(tostring(datetext(today(), "MMM"))) & " " & upper(tostring(datetext(today(), "YYYY"))),
 "Ingrese un documento nombrad correctamente.",
 {}
 )
 }
 )
 }
) 
 Note how this has been updated 
 "INVENTARIO " & upper(tostring(datetext(today(), "MMM"))) & " " & upper(tostring(datetext(today(), "YYYY"))) 
 and presumably returns the value you actually wanted:

File Name Validation

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