Hello,
I'm trying to develop a quick tool to perform a definition query on a group layer based on the users input (Field, Value in Field, and Group Layer). I did some searching around and came up with the script that I have below. Originally I set the field, value, and group parameters directly equal to a particular value and the code worked perfectly. But now I want the user to be able to enter the field and value they want to perform the definition query with as well as which group layer to use. Every time I run the tool it says that "field" is undefined which means some how my parameters are not being returned. Is there some syntax that I'm missing or do I have any of the parameters set up incorrectly. I'm just starting to learn python so any help is welcome.
Thanks.
import arcpy
#Variables to form defintion query
def getParameterInfo(self):
field = arcpy.Parameter(
displayName="Field",
name="field",
datatype="Any Value",
parameterType="Required",
direction="Input")
value = arcpy.Parameter(
displayName="Value in Field",
name="value",
datatype="Any Value",
parameterType="Required",
direction="Input")
group = arcpy.Parameter(
displayName="Group Layer Name",
name="group",
datatype="Group Layer",
parameterType="Required",
direction="Input")
params = [field, value, group]
return params
#concatenate query syntax
queryStr = str(field) + "=" + str(value)
#Specify the MXD project (CURRENT), dataframe (Layers)
mxd = arcpy.mapping.MapDocument("CURRENT")
df = arcpy.mapping.ListDataFrames(mxd, "Layers")[0]
#Apply defintion query to specified layer group (Test)
for lyr in arcpy.mapping.ListLayers(mxd, group, df)[0]:
if lyr.supports("DEFINITIONQUERY"):
lyr.definitionQuery = queryStr
arcpy.RefreshActiveView()
