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How to use existingConnection method in fMBT

Best Python code snippet using fMBT_python

genome.py

Source:genome.py

1import random2from NEAT.NEAT_implementation.Genotype.connection import Connection3from NEAT.NEAT_implementation.Genotype.node import Node4class Genome:5    def __init__(self):6        self.connections = []7        self.nodes = []8        self.nodeIds = set()9        self.innovationNumbers = set()10        self.fitness = None11        self.adjustedFitness = None12        self.species = None13    def addConnectionMutation(self):14        possibleInputs = [n.id for n in self.nodes if n.type != 'output']15        possibleOutputs = [n.id for n in self.nodes if n.type != 'input' and n.type != 'bias']16        if len(possibleOutputs) is not 0 and len(possibleInputs) is not 0:17            inputNodeId = random.choice(possibleInputs)18            outputNodeId = random.choice(possibleOutputs)19            if self.checkValidConnection(inputNodeId, outputNodeId):20                self.addConnection(inputNodeId, outputNodeId)21    def addNodeMutation(self):22        newNode = self.addNode('hidden')23        existingConnection = self.getRandomConnection()24        self.addConnection(existingConnection.inputNodeId, newNode.id, weight=1)25        self.addConnection(newNode.id, existingConnection.outputNodeId, weight=existingConnection.weight)26        existingConnection.active = False27    def countExcessGenes(self, other):28        excessGeneCounter = 029        innovationNumberMaximum = max(other.innovationNumbers)30        for connection in self.connections:31            if connection.innovationNumber > innovationNumberMaximum:32                excessGeneCounter += 133        nodeIdMaximum = max([node.id for node in other.nodes])34        for node in self.nodes:35            if node.id > nodeIdMaximum:36                excessGeneCounter += 137        return excessGeneCounter38    def countDisjointGenes(self, other):39        disjointgeneCounter = 040        innovationNumberMaximum = max(other.innovationNumbers)41        for connection in self.connections:42            if connection.innovationNumber <= innovationNumberMaximum:43                if other.getConnection(connection.innovationNumber) is None:44                    disjointgeneCounter += 145        nodeIdMaximum = max([node.id for node in other.nodes])46        for node in self.nodes:47            if node.id <= nodeIdMaximum:48                if other.getNode(node.id) is None:49                    disjointgeneCounter += 150        return disjointgeneCounter51    def getConnection(self, innovationNumber):52        for connection in self.connections:53            if connection.innovationNumber == innovationNumber:54                return connection55        return None56    def getNode(self, nodeId):57        for node in self.nodes:58            if node.id == nodeId:59                return node60        return None61    def getAverageWeightDifference(self, other):62        weightDifference = 0.063        weightNumber = 0.064        for connection in self.connections:65            matchingConnection = other.getConnection(connection.innovationNumber)66            if matchingConnection is not None:67                weightDifference += float(connection.weight) - float(matchingConnection.weight)68                weightNumber += 169        if weightNumber == 0.0:70            weightNumber = 1.071        return weightDifference / weightNumber72    def getNodeInputIds(self, nodeId):73        nodeInputIds = []74        for connection in self.connections:75            if (connection.outputNodeId == nodeId) and connection.active:76                nodeInputIds.append(connection.inputNodeId)77        return nodeInputIds78    def addConnection(self, inputNodeId, outputNodeId, active=True, weight=None):79        newConnection = Connection(inputNodeId, outputNodeId, active)80        if weight is not None:81            newConnection.setWeight(float(weight))82        self.connections.append(newConnection)83        self.nodeIds.add(inputNodeId)84        self.nodeIds.add(outputNodeId)85        self.innovationNumbers.add(newConnection.innovationNumber)86    def addNode(self, nodeType):87        nodeId = len(self.nodes)88        node = Node(nodeId, nodeType)89        self.nodes.append(node)90        return node91    def addConnectionCopy(self, copy):92        newConnection = Connection(copy.inputNodeId, copy.outputNodeId, copy.active)93        newConnection.setWeight(float(copy.weight))94        newConnection.setInnovationNumber(copy.innovationNumber)95        self.connections.append(newConnection)96        self.nodeIds.add(copy.inputNodeId)97        self.nodeIds.add(copy.outputNodeId)98        self.innovationNumbers.add(newConnection.innovationNumber)99    def addNodeCopy(self, copy):100        self.nodes.append(Node(copy.id, copy.type))101    def getInputConnections(self, nodeId):102        connections = []103        for connection in self.connections:104            if (connection.outputNodeId == nodeId) and connection.active:105                connections.append(connection)106        return connections107    def getRandomNodeId(self):108        return random.choice(list(self.nodeIds))109    def getRandomConnection(self):110        return random.choice(self.connections)111    def getOutputConnections(self, nodeId):112        connections = []113        for connection in self.connections:114            if (connection.inputNodeId == nodeId) and connection.active:115                connections.append(connection)116        return connections117    def checkCyclicity(self, inputNodeId, outputNodeId):118        if inputNodeId == outputNodeId:119            return True120        visited = {outputNodeId}121        while True:122            counter = 0123            for connection in self.connections:124                if connection.inputNodeId in visited and connection.outputNodeId not in visited:125                    if connection.outputNodeId == inputNodeId:126                        return True127                    else:128                        visited.add(connection.outputNodeId)129                        counter += 1130            if counter == 0:131                return False132    def checkValidConnection(self, inputNodeId, outputNodeId):133        isThereCycle = self.checkCyclicity(inputNodeId, outputNodeId)134        exists = self.checkExistence(inputNodeId, outputNodeId)135        return (not isThereCycle) and (not exists)136    def checkExistence(self, inputNodeId, outputNodeId):137        for connection in self.connections:138            if (connection.inputNodeId == inputNodeId) and (connection.outputNodeId == outputNodeId):139                return True140            elif (connection.inputNodeId == outputNodeId) and (connection.outputNodeId == inputNodeId):141                return True142        return False143    def getOutputNodes(self, node, nodes):144        outputNodeIds = [connection.outputNodeId for connection in self.connections if (connection.inputNodeId == node.id) and connection.active]145        return [outputNode for outputNode in nodes if outputNode.id in outputNodeIds]146    def orderNodesByValue(self, nodeValues):147        nodes = [nodeValue.referenceNode for nodeValue in nodeValues]148        visited = set()149        ordered = []150        for node in nodes:151            if node not in visited:152                self.innerOrdering(node, nodes, ordered, visited)153        orderedNodeValues = []154        for node in ordered:155            for nodeValue in nodeValues:156                if nodeValue.referenceNode == node:157                    orderedNodeValues.append(nodeValue)158                    break159        return orderedNodeValues160    def innerOrdering(self, node, nodes, ordered, visited):161        visited.add(node)162        for outputNode in self.getOutputNodes(node, nodes):163            if outputNode not in visited:164                self.innerOrdering(outputNode, nodes, ordered, visited)...

views.py

Source:views.py

1import random2import string3from django.contrib.auth.decorators import login_required4from django.shortcuts import render, get_object_or_404, redirect5from django.http import HttpResponse, JsonResponse, HttpResponseForbidden, HttpResponseRedirect, HttpResponseBadRequest6from .models import Connection, Token7from django.views.decorators.csrf import csrf_exempt8from django.views.decorators.http import require_POST9from django.contrib.auth import login, authenticate, logout10from django.contrib.auth.models import User11from django.core.exceptions import PermissionDenied12from django.urls import reverse13# import the logging library14import logging15# Get an instance of a logger16logger = logging.getLogger(__name__)17def index(request):18    return render(request, 'index.html')19def login_form(request):20    return render(request, 'login.html', {'incorrect_login': False})21def register_form(request):22    return render(request, 'register.html', {'incorrect_login': False})23def do_logout(request):24    logout(request)25    return HttpResponseRedirect(reverse('index'))26def incorrect_login_form(request):27    return render(request, 'login.html', {'incorrect_login': True})28def incorrect_register_form(request):29    return render(request, 'register.html', {'incorrect_login': True})30def do_login(request):31    if 'username' in request.POST and 'password' in request.POST:32        username = request.POST['username']33        password = request.POST['password']34        user = authenticate(request, username=username, password=password)35        if user is not None:36            login(request, user)37            createToken(user)38            return HttpResponseRedirect(reverse('main_friends'))39        else:40            return HttpResponseRedirect(reverse('incorrect_login_form'))41    else:42        return HttpResponseBadRequest("request must contain username and password")43def do_register(request):44    if 'username' in request.POST and 'password' in request.POST and 'email' in request.POST:45        username = request.POST['username']46        password = request.POST['password']47        email = request.POST['email']48        user = User.objects.create_user(username, email, password)49        logger.info("created user")50        logger.info(user)51        user = authenticate(request, username=username, password=password)52        if user is not None:53            login(request, user)54            createToken(user)55            return HttpResponseRedirect(reverse('main_friends'))56        else:57            return HttpResponseRedirect(reverse('incorrect_register_form'))58    else:59        return HttpResponseBadRequest("request must contain username and password")60@login_required61def main_friends(request):62    return render(request, 'main_friends.html')63@login_required64def main_upload(request):65    return render(request, 'main_upload.html', {'token': fetchToken(request.user)})66@login_required67def main_photos(request):68    return render(request, 'main_photos.html', {'token': fetchToken(request.user)})69@login_required70def get_friends(request):71    users = User.objects.all()72    usersParsed = []73    for user in users:74        connection = Connection.objects.filter(follower=request.user).filter(following=user.id)75        if connection:76            usersParsed.append({'username': user.username, 'id': user.id, 'follows': True})77        else:78            usersParsed.append({'username': user.username, 'id': user.id, 'follows': False})79    return JsonResponse({'users': list(usersParsed)})80@login_required81@csrf_exempt82def follow(request):83    if 'id' not in request.POST:84        raise PermissionDenied85    following = User.objects.get(id=request.POST['id'])86    existingConnection = Connection.objects.filter(follower=request.user).filter(following=following)87    if existingConnection.count() == 0:88        Connection.objects.create(follower=request.user, following=following)89    else:90        existingConnection.delete()91    return HttpResponse()92@csrf_exempt93def get_followings_request(request):94    logger.info("before")95    if 'HTTP_AUTHENTICATION' not in request.META:96        raise PermissionDenied97    logger.info("after")98    user = fetchUser(request.META['HTTP_AUTHENTICATION'])99    connections = Connection.objects.filter(follower=user)100    followingsParsed = []101    for connection in connections:102        followingsParsed.append({'id': connection.following.id, 'username': connection.following.username})103    return JsonResponse({ 'userId': user.id, 'friends': list(followingsParsed) })104def createToken(user):105    alreadyExistingToken = Token.objects.filter(user=user)106    alreadyExistingToken.delete()107    tokenString = str(user.id) + '-' + ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(50))108    Token.objects.create(user=user, token=tokenString)109def fetchToken(user):110    return Token.objects.filter(user=user).first().token111def fetchUser(token):...

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