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getformula.py
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getformula.py
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# -*- coding: utf-8 -*-
"""Request handler of the module."""
import pywikibot
from collections import defaultdict
from SPARQLWrapper import SPARQLWrapper, JSON
import xmltodict
formula=defaultdict(list)
def get_formula(sub,lang="en"):
"""
Get subject number and language
Return value of defining formula property:P2534
"""
try:
subject= str(sub)
site = pywikibot.Site(lang, "wikipedia")
page = pywikibot.Page(site,subject)
item = pywikibot.ItemPage.fromPage(page)
subn=str(item).replace("[[wikidata:",'').replace("]]",'')
# Get the claim dictionary
item_dict = item.get()
clm_dict = item_dict["claims"]
# Get the defining formula property:P2534
for clm in clm_dict["P2534"]:
key=clm.getTarget()
return key
except:
s="System could not find the formula for %s . If you know the formula \
you can set the defining formula property <a href='https://www.wikidata.org/wiki/P2534' target='_blank'>P2534</a> in %s \
<a href='https://www.wikidata.org/wiki/%s' target='_blank'>%s</a>" % (sub,sub,subn,sub)
return s
'''
try:
for clm in clm_dict["P527"]:
#c=clm.getTarget()
json=clm.toJSON()
#print(json)
#print(json['qualifiers']['P2534'][0]['datavalue']['value'])
formula[key].append(json['qualifiers']['P2534'][0]['datavalue']['value'])
return formula
except:
return key
'''
def get_formula_geometry(sub,pred,subject,predicate):
"""
Get subject and predicate number
Return value of has quality property : P1552
"""
subn=str(sub).replace("[[wikidata:",'').replace("]]",'')
predn=str(pred).replace("[[wikidata:",'').replace("]]",'')
item_dict = sub.get()
clm_dict = item_dict["claims"]
try:
#get the has quality property:P1552
for clm in clm_dict["P1552"]:
c=clm.getTarget()
if c == pred:
c=clm.toJSON()
return (c['qualifiers']['P2534'][0]['datavalue']['value'])
else:
s="System could not find the formula for %s . If you know the formula \
you can set the has quality property <a href='https://www.wikidata.org/wiki/P1552' target='_blank'> P1552 </a> \
in <a href='https://www.wikidata.org/wiki/%s' target='_blank'> %s </a> for <a href='https://www.wikidata.org/wiki/%s' target='_blank'> %s </a>" % (subject,subn,subject,predn,predicate)
return s
except:
s="System could not find the formula for <a href='https://www.wikidata.org/wiki/%s' target='_blank'> %s </a> " % (subn,subject)
return s
def get_formula_sparql(sub,pred):
"""
Get subject and predicate number
return formula
"""
#subn=str(sub).replace("[[wikidata:",'').replace("]]",'')
#predn=str(pred).replace("[[wikidata:",'').replace("]]",'')
sparql = SPARQLWrapper("https://query.wikidata.org/sparql")
try:
q="""
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT ?qid ?qformula WHERE {
?qid wdt:P527 wd:%s.
?qid wdt:P527 wd:%s.
?qid wdt:P2534 ?qformula.
}"""%(sub,pred)
sparql.setQuery(q)
sparql.setReturnFormat(JSON)
results = sparql.query().convert()
for result in results["results"]["bindings"]:
#print(result["p"]["value"]) + " " + result["w"]["value"]
a=result["qformula"]["value"]
result = xmltodict.parse(a)
return (result['math']['semantics']['annotation']['#text'])
except:
s="System could not find the formula for <a> %s </a> and <a> %s </a>" % (sub,pred)
return s
Hindigeolist=['क्षेत्रफल', 'आयतन' ,'समुद्र तट से ऊंचाई', 'लम्बाई','विकर्ण','सतह क्षेत्र','लंबाई']
def get_item_number(subject,predicate,lang="en"):
"""
Get subject, predicate and language
Return formula
"""
try:
usub=str(subject)
upred=str(predicate)
site = pywikibot.Site(lang, "wikipedia")
subjecti= pywikibot.Page(site,usub)
sitem = pywikibot.ItemPage.fromPage(subjecti)
predicatei= pywikibot.Page(site, upred)
pitem = pywikibot.ItemPage.fromPage(predicatei)
subn=str(sitem).replace("[[wikidata:",'').replace("]]",'')
predn=str(pitem).replace("[[wikidata:",'').replace("]]",'')
if(lang=="en"):
return get_formula_geometry(sitem,pitem,usub,upred)
if upred in Hindigeolist:
return get_formula_geometry(sitem, pitem,usub,upred)
else:
return get_formula_sparql(subn,predn)
except:
s="System could not find the item <a> %s </a>" % (usub)
return s
geometry=['surface area','volume','area','radius of circle','altitude','diagonal','medians','inradius','circumradius','length']
formulalist=['formula','equation','mathematical formula']
def predicate(predicate,subject):
if predicate in geometry:
return get_item_number(subject,predicate)
elif predicate in formulalist:
return get_formula(subject)
else:
s="System could not find the item <a> %s </a> for <a> %s </a> " % (predicate,subject)
return s
class FormulaRequestHandler:
def __init__(self, request):
self.request = request
def answer(self):
request=self.request
formula=predicate(request.predicate.value,request.subject.value)
return formula
class HindiRequestHandler:
def __init__(self, language,subject,predicate):
self.language = language
self.subject=subject
self.predicate=predicate
def answer(self):
Hindiformulalist=['गणितीय सूत्र','सूत्र','फार्मूला']
if self.predicate in Hindiformulalist:
return get_formula(self.subject,self.language)
else:
return get_item_number(self.subject,self.predicate,self.language)