PyQGIS script processing: 'unicode' object has no attribute 'getFeatures'

Question

I'm beginner. I try to use a code that works to create a script processing. The code creates folder and subfolder using the value os a column. This is then processing script

import os
##Crea folder and subfolder=name
##Vector=group
##layer=vector
##idx=field layer
##path=folder

#layer = iface.activeLayer()
#idx = layer.fieldNameIndex('NAME')  
#path = "D:\\GIS\\_Temp\\"


for feat in layer.getFeatures():
    attrs = feat.attributes()
    if not os.path.exists(path + attrs[idx]):
        os.makedirs(path + attrs[idx])


for feat in layer.getFeatures():
    attrs = feat.attributes()
    foto=os.path.join(attrs[idx], attrs[idx]+"_foto")
#    foto= attrs[idx]+'\\'+attrs[idx]+'_foto'
    if not os.path.exists(path + foto):
        os.makedirs(path + foto)
    else:
        continue    

for feat in layer.getFeatures():
    attrs = feat.attributes()
    doc= os.path.join(attrs[idx], attrs[idx]+"_documenti")
    if not os.path.exists(path + doc):
        os.makedirs(path + doc)
    else:
        continue       

for feat in layer.getFeatures():
    attrs = feat.attributes()
    vid= os.path.join(attrs[idx], attrs[idx]+"_video")
    if not os.path.exists(path + vid):
        os.makedirs(path + vid)
    else:
        continue

but It returns this error: 'unicode' object has no attribute 'getFeatures' . and I don't understand what the problem is.

Answer 1

Made some tweaks but I tested the first part of your code which worked:

##Create folder and subfolder=name
##Layer=vector
##Field=field Layer
##Path=folder

import os
layer = processing.getObject(Layer)
idx = layer.fieldNameIndex(Field)
path = Path + "/"

for feat in layer.getFeatures():
    attrs = feat.attributes()
    if not os.path.exists(path + attrs[idx]):
        os.makedirs(path + attrs[idx])

You can try adding the rest of your code to the script and see if it works.