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NemanjaMilosevic · Feb 12, 2018 · 11fe655 · 11fe655
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diff --git a/README.md b/README.md
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 # DAVE
-Decentralized Autonomous Voting Engine 
+Decentralized Autonomous Voting Engine/Environment 
diff --git a/Voting.sol b/Voting.sol
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+pragma solidity ^0.4.18;
+// specify compiler version
+
+contract Voting {
+  /* mapping field below is equivalent to an associative array or hash.
+  The key of the mapping is candidate name stored as type bytes32 and value is
+  an unsigned integer to store the vote count
+  */
+
+  mapping (bytes32 => uint8) public votesReceived;
+
+  /* Solidity doesn't let you pass in an array of strings in the constructor (yet).
+  We will use an array of bytes32 instead to store the list of candidates
+  */
+
+  bytes32[] public candidateList;
+
+  /* This is the constructor which will be called once when you
+  deploy the contract to the blockchain. When we deploy the contract,
+  we will pass an array of candidates who will be contesting in the election
+  */
+  function Voting(bytes32[] candidateNames) public {
+    candidateList = candidateNames;
+  }
+
+  // This function returns the total votes a candidate has received so far
+  function totalVotesFor(bytes32 candidate) view public returns (uint8) {
+    require(validCandidate(candidate));
+    return votesReceived[candidate];
+  }
+
+  // This function increments the vote count for the specified candidate. This
+  // is equivalent to casting a vote
+  function voteForCandidate(bytes32 candidate) public {
+    require(validCandidate(candidate));
+    votesReceived[candidate] += 1;
+  }
+
+  function validCandidate(bytes32 candidate) view public returns (bool) {
+    for(uint i = 0; i < candidateList.length; i++) {
+      if (candidateList[i] == candidate) {
+        return true;
+      }
+    }
+    return false;
+  }
+}
diff --git a/index.html b/index.html
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+<!DOCTYPE html>
+<html>
+<head>
+  <title>Hello World DApp</title>
+  <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700' rel='stylesheet' type='text/css'>
+  <link href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css' rel='stylesheet' type='text/css'>
+</head>
+<body class="container">
+  <h1>A Simple Hello World Voting Application</h1>
+  <div class="table-responsive">
+    <table class="table table-bordered">
+      <thead>
+        <tr>
+          <th>Candidate</th>
+          <th>Votes</th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr>
+          <td>Rama</td>
+          <td id="candidate-1"></td>
+        </tr>
+        <tr>
+          <td>Nick</td>
+          <td id="candidate-2"></td>
+        </tr>
+        <tr>
+          <td>Jose</td>
+          <td id="candidate-3"></td>
+        </tr>
+      </tbody>
+    </table>
+  </div>
+  <input type="text" id="candidate" />
+  <a href="#" onclick="voteForCandidate()" class="btn btn-primary">Vote</a>
+</body>
+<script src="https://cdn.rawgit.com/ethereum/web3.js/develop/dist/web3.js"></script>
+<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"></script>
+<script src="./index.js"></script>
+</html>
diff --git a/index.js b/index.js
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+web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
+abi = JSON.parse('[{"constant":false,"inputs":[{"name":"candidate","type":"bytes32"}],"name":"totalVotesFor","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"candidate","type":"bytes32"}],"name":"validCandidate","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"bytes32"}],"name":"votesReceived","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"x","type":"bytes32"}],"name":"bytes32ToString","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"candidateList","outputs":[{"name":"","type":"bytes32"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"candidate","type":"bytes32"}],"name":"voteForCandidate","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"contractOwner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"inputs":[{"name":"candidateNames","type":"bytes32[]"}],"payable":false,"type":"constructor"}]')
+VotingContract = web3.eth.contract(abi);
+// In your nodejs console, execute contractInstance.address to get the address at which the contract is deployed and change the line below to use your deployed address
+contractInstance = VotingContract.at('0xd08b893984b42966581ce311f65128e252bf1e3a');
+candidates = {"Rama": "candidate-1", "Nick": "candidate-2", "Jose": "candidate-3"}
+
+function voteForCandidate() {
+  candidateName = $("#candidate").val();
+  contractInstance.voteForCandidate(candidateName, {from: web3.eth.accounts[0]}, function() {
+    let div_id = candidates[candidateName];
+    $("#" + div_id).html(contractInstance.totalVotesFor.call(candidateName).toString());
+  });
+}
+
+$(document).ready(function() {
+  candidateNames = Object.keys(candidates);
+  for (var i = 0; i < candidateNames.length; i++) {
+    let name = candidateNames[i];
+    let val = contractInstance.totalVotesFor.call(name).toString()
+    $("#" + candidates[name]).html(val);
+  }
+});
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diff --git a/node_modules/acorn-dynamic-import/CHANGELOG.md b/node_modules/acorn-dynamic-import/CHANGELOG.md
diff --git a/node_modules/acorn-dynamic-import/LICENSE b/node_modules/acorn-dynamic-import/LICENSE
diff --git a/node_modules/acorn-dynamic-import/README.md b/node_modules/acorn-dynamic-import/README.md
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