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Support Article

Data page load failed due to wrong value in param pyModelName

SA-10570

Summary



A data transform LoadFirstPage mentioned as a data source in a data page D_FirstPage. The data transform is referring another data page D_SecondPage which is also has a data transform LoadSecondPage rule as data source. If the “Pass current parameter page” check-box is checked (for the LoadSecondPage) in the second data page (D_SecondPage) then at run time while the system is trying to initialize this data page (D_SecondPage) the data transform “LoadFirstPage” (mentioned in the previous data page) is getting called instead of “LoadSecondPage”. The issue is due to a wrong value is getting passed through the parameter “pyModelName”.

Error Messages



Not Applicable

Steps to Reproduce

  1. Create a data page (D_FirstPage).
  2. Define a data transform (LoadFirstPage) as a data source in the data page (D_FirstPage) rule form.
  3. Create another data page (D_SecondPage).
  4. Define another data transform (LoadSecondPage) as a data source in the second data page (D_SecondPage) rule form and check the check-box “Pass current parameter page” for the data transform.
  5. In the first data transform (LoadFirstPage) refer the second data page (D_SeconPage).
  6. Try to load the first data page (D_FirstPage).

Root Cause



The root cause of this problem is: In the Data page where you pass the current parameter page in as a data source, the new data source values were getting overridden with the existing parameter page values. 

Resolution



This issue is scheduled to be resolved in Pega 7.1.9.

Published June 12, 2015 - Updated October 8, 2020

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