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Issues (15)

app/views.py (1 issue)

Code
1 
import random
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from flask import render_template, url_for, redirect

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from pymongo import MongoClient

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from . import app

            


            
                                                                                                            
                            
            
                                    
            
            

                
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base = 'mongodb://localhost:21017'

            


            
                                                                                                            
                            
            
                                    
            
            

                
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client = MongoClient(base)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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db = client["facemash"]

            


            
                                                                                                            
                            
            
                                    
            
            

                
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@app.route('/')

            


            
                                                                                                            
                            
            
                                    
            
            

                
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def index():

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    f = db.data.find_one({"id": random.randint(1, db.data.count())})

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    s = db.data.find_one({"id": random.randint(1, db.data.count())})

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    if f == s:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        s = db.data.find_one({"id": random.randint(1, db.data.count())})

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    return render_template('index.html', first=str(f["id"]), second=str(s["id"]))

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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@app.route('/vote/<v>')

            


            
                                                        
            
                                    
            
            

                
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def vote(v):

            


            
                                                        
            
                                    
            
            

                
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    vote = db.data.find_one({"id": int(v)})["vote"] + 1

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
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vote is re-defining a name which is already available in the outer-scope (previously defined on line 24).
                                                                                                                                                    

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
It is generally a bad practice to shadow variables from the outer-scope. In most
cases, this is done unintentionally and might lead to unexpected behavior:


param = 5

class Foo:
    def __init__(self, param):   # "param" would be flagged here
        self.param = param





                        

                                                    

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    db.data.update({"id": int(v)}, {"$set": {"vote": vote}})

            


            
                                                        
            
                                    
            
            

                
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    return redirect(url_for('index'), 302)

            


            
                                                        
            
                                    
            
            

                
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