User created Refactoring functions?

Engineering 🇬🇧
thecolonel26
2022-08-15
2023-08-09

  • thecolonel26 - 2022-08-15

    Is there any way to extend Codesys Development System with C# or Python to add your own refactoring functions?

    I would very much like to automate FB properties to automatically add a backing VAR. It is vary tedious doing that by hand.

     
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  • tvm - 2022-09-19

    Try this:
    https://help.codesys.com/webapp/_cds_struct_using_scripts;product=codesys;version=3.5.17.0

    This script will find any variable that starts with an underscore and create a property for it

    def CreateAllProperties(fbname):
    # get current project
    project = projects.primary 
    # find the function block
    fb = project.find(fbname, True)[0]
    # get the declaration text
    declaration = fb.textual_declaration
    # iterate all lines in the declaration
    for i in range(declaration.linecount):
        line = declaration.get_line(i)  # get this declaration line
        stripped = line.strip() #strip out white space in this line
        endofline = stripped.find(";")
        stripped = stripped[0:endofline]    #discards anything past the ";" (comments, etc)
        if stripped.startswith("_"):
            var = stripped.split(":")   #NOTE: this also removes initial value declarations, or puts them into the [2] index of var, which we can discard
            propname = var[0][1:]
            proptype = var[1]
            print("Creating property " + propname + " with type " + proptype)
            fb.create_property(propname, proptype)
            newprop = fb.find(propname)[0]
            getter = newprop.find("Get")[0]
            setter = newprop.find("Set")[0]            
            newprop.textual_declaration.insert(0,0,"{attribute 'monitoring':='call'}\r\n")
            getter.textual_implementation.replace(propname + ":= _" + propname + ";")
            setter.textual_implementation.replace("_" + propname + ":= " + propname + ";")
     

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  • bnewman - 2023-08-08

    Here is an updated version that works in Codesys 3.5.19.2

    That old version didn't like the line

    fb.create_property(propname, proptype)

    def CreateAllProperties(fbname):
    # get current project
    project = projects.primary 
    # find the function block
    fb = project.find(fbname, True)[0]

    # get the declaration text
    declaration = fb.textual_declaration
    # iterate all lines in the declaration
    for i in range(declaration.linecount):
        line = declaration.get_line(i)  # get this declaration line
        stripped = line.strip() # strip out white space in this line
        endofline = stripped.find(";")
        stripped = stripped[0:endofline] # discards anything past the ";" (comments, etc)
        if stripped.startswith("_"):
            var = stripped.split(":")   #NOTE: this also removes initial value declarations, or puts them into the [2] index of var, which we can discard
            membername = var[0].strip(" ")
            propname = membername.lstrip("_");
            proptype = var[1].strip(" ");
            print("Creating property \"" + propname + "\" with type " + proptype)
            fb.create_property(propname, return_type=proptype, language=None)
            print("property " + propname + " with type " + proptype + "was created!")

            newprop = fb.find(propname)[0]
            getter = newprop.find("Get")[0]
            setter = newprop.find("Set")[0]            
            #newprop.textual_declaration.insert(0,0,"{attribute 'monitoring':='call'}\r\n")
            print("Inserting to getter")
            getter.textual_implementation.replace(propname + ":= " + membername + ";")
            print("Inserting to setter")
            setter.textual_implementation.replace(membername + ":= " + propname + ";")

CreateAllProperties("*NameOfFunctionBlock*")
     
    👍
    1

  • hermsen

    hermsen - 2023-08-09

    Thank you for this snippet, I took the liberty to post repost it here;
    https://forge.codesys.com/tol/scripting/snippets/search/?q=status%3AUnlicense

     

    • bnewman - 2023-08-09

      That's fine with me
      I added a comment to that snippet with an improved version that doesn't throw an exception if the property already exists

       

      Last edit: bnewman 2023-08-10

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