The provided code defines a static function named `LoadDeductionType`. Here's...

August 29, 2025 at 07:24 PM

static LoadDeductionType() {
                if (!Data.IsNullOrEmpty("Deduction_type__")) {
                    const deductionType = Data.GetValue("Deduction_type__");
                    const companyCode = Data.GetValue("Company_code__");
                    DeductionTypes.GetManager().SetCurrentType(deductionType);
                    return DeductionTypes.GetManager().InitCache()
                        .Then(() => {
                        Variable.SetValueAsString("FieldsToHideOnClaim", DeductionTypes.Current.FieldsToHideStr());
                        Variable.SetValueAsString("LineItemVisible", DeductionTypes.Current.IsLineVisible() ? "1" : "0");
                        const checkObject = Lib.Deductions.Checks.GetEnabledChecks();
                        const standardChecks = Lib.Deductions.Checks.GetStandardChecks();
                        const customChecks = Sys.Helpers.TryCallFunction("Lib.Deductions.Customization.Checks.GetCustomChecks");
                        ValidationFunctions.FillLineCheck(standardChecks, checkObject);
                        ValidationFunctions.FillLineCheck(customChecks, checkObject);
                        hiddenFields = DeductionTypes.Current.FieldsToHide();
                        return Sys.Helpers.Promise.Resolve();
                    }).Catch((errorMessage) => {
                        Log.Error("Error : " + errorMessage);
                        Process.PreventApproval();
                    });
                }
                return Sys.Helpers.Promise.Resolve();
            }

The provided code defines a static function named LoadDeductionType. Here's a breakdown of what the function does:

Check if Deduction_type__ is empty:
- It checks if the Deduction_type__ field or data is empty. This is done using Data.IsNullOrEmpty("Deduction_type__").
- If it is empty, the function does not proceed and resolves a promise immediately with return Sys.Helpers.Promise.Resolve().
Retrieve values if Deduction_type__ exists:
- If the Deduction_type__ exists (not null or empty), the function retrieves its value (stored in deductionType) and the company code (companyCode) using the Data.GetValue method.
Set up the deduction type in the manager:
- The retrieved deductionType is passed to the DeductionTypes.GetManager().SetCurrentType() method, which sets the current deduction type for further processing.
Initialize a cache asynchronously:
- The function then calls DeductionTypes.GetManager().InitCache() to initialize some form of cache using the manager. This function appears to return a promise, enabling further processing in the then block once the cache is successfully initialized.
Modify variables and perform operations within the then block:
- After successfully initializing the cache:
  - The FieldsToHideOnClaim and LineItemVisible fields are set using the current deduction type’s properties (FieldsToHideStr() and IsLineVisible()).
  - It retrieves enabled checks (checkObject), standard checks, and custom checks using specific library functions (Lib.Deductions.Checks) and a customizable function (Lib.Deductions.Customization.Checks.GetCustomChecks).
  - It invokes ValidationFunctions.FillLineCheck to populate validation checks for both the standard and custom checks.
  - A field called hiddenFields is populated using DeductionTypes.Current.FieldsToHide().
Error handling with a catch block:
- If an error occurs during the asynchronous operation (e.g., cache initialization or subsequent steps), the catch block logs the error (Log.Error) and calls Process.PreventApproval() to halt further approval or processing.
Final fallback:
- If the initial check for Deduction_type__ fails (i.e., it is null or empty), or after handling errors, the function resolves the promise to indicate the end of the operation.

Summary of What This Code Does:

This function is part of a broader system for managing "deduction types." It initializes and caches the current deduction type, updates various fields or variables based on its properties, configures validation checks, handles any errors, and halts processing if needed. It is designed to ensure the system's internal state aligns with the selected deduction type and handles failures gracefully for asynchronous operations.

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