def createFilter():
#this function displays all the parameters that can be added to filters
#uses 2 dicts and 1 user entry to setup the filter parameters
#returns the filter statement op(cat,val)
opDict={0:("!=",ne),1:("==",eq),2:("<",lt),3:("<=",le),4:(">=",ge),5:(">",gt)} #the operator dict (0) is the printable symbol (1) is the object
#cat: the category we filter by
#print out cat options
for key in Lift.memberDict.keys():
print "%s) %s"%(key,Lift.memberDict[key][0])
#user input for the category, selects the key for memberdict from the items in memTemp
(_cat,cat)=Lift.memberDict[optionValidate("Choose filter category",range(key+1))]
#op: The operator we use in our filtering eg: ==, >
for key in opDict.keys():
print "%s) %s"%(key,opDict[key][0])
#user input for the category, selects the key for opDict from the items in opTemp
(_op,op)=opDict[optionValidate("Choose filter category",range(key+1))]
#val: teh value we are evaluating towards
val=raw_input("%s %s "%(_cat,_op)).lower()
return condition(cat,val,op)
def expandParam(cond):
#allows the user to choose a condition to expand
for key in filter.condition.keys():
print "%s) %s"%(key,filter.condition[key][0])
choice=int(raw_input("->"))
andor={0:and_,1:or_} #what type of expansion
print "0) AND\n1) OR"
filter.expandCondition(choice,cond,andor[optionValidate("->",range(2))])
def addFilterP():
#this function displays all the parameters that can be added to filters
#returns a string "rule"
newCond=createFilter() #new filter is entered by user, if existing filters, determine if it's an "and" or an "or" filter
if filter.condition=={}: #if this is the first thignin our filter, we jsut add the case and call it a day
filter.addCondition(newCond,"")
else: #if it's not, find out how it relates to the other cases
#determine if it expands an existing option or creates a new one
choice={0:expandParam,1:addParam}
print "0) Expand Existing Parameter \n1) Add New Parameter"
choice[optionValidate("->",range(2))](newCond)
def rmvFilterP():
#function to remove a filter parameter
#display parameters that can be removed
#change conditions based on removing 1 from beginning, middle or end
#choose parameter to remove
print "Pick parameter to remove"
for key in filter.condition.keys():
print "%s) %s"%(key,filter.condition[key][0])
choice=optionValidate("->",range(len(filter.condition.keys())))
filter.hideCondition(choice)
def addParam(cond):
#adds a new parameter to our filter
andor={0:and_,1:or_}
print "0) AND\n1) OR"
filter.addCondition(cond,andor[optionValidate("->",range(2))],0)
