# Elections

#### **`applyForMembership`**

Adds new relayer to the list of request nodes and accepts request.

```
function applyForMembership(
        address staker_addr,
        uint256 ton_pubkey,
        uint160 eth_addr,
        uint128 tokens,
        uint32 lock_time,
        uint32 code_version
    ) external override onlyUserData(staker_addr)
```

**Parameters:**

| Name          | Type    | Description                    |
| ------------- | ------- | ------------------------------ |
| staker\_addr  | address | Address of the staker applying |
| ton\_pubkey   | uint256 | Public key of ton account      |
| eth\_addr     | uint160 | Address of ethereum account    |
| tokens        | uint128 | Number of staker’s tokens      |
| lock\_time    | uint32  | Duration of locking the tokens |
| code\_version | uint32  | Code version                   |

#### **`destroy`**

Should be called after transfer of relayer data to next relayer round.

```
function destroy() external override onlyRoot
```

#### **`finish`**

Ends election if not yet ended and sends gas back to root.

```
function finish(uint32 code_version) external override onlyRoot
```

**Parameters:**

| Name          | Type   | Description             |
| ------------- | ------ | ----------------------- |
| code\_version | uint32 | Election’s version code |

#### **`sendRelaysToRelayRound`**

Sets relayers to the relayer round.

```
function sendRelaysToRelayRound(address relay_round_addr, uint32 relays_count) external override onlyRoot
```

**Parameters:**

| Name               | Type    | Description                     |
| ------------------ | ------- | ------------------------------- |
| relay\_round\_addr | address | Address of the relayer round    |
| relays\_count      | uint32  | Number of relayers in the round |

#### **`upgrade`**

Upgrades election data and sets new code.

```
function upgrade(TvmCell code, uint32 new_version, address send_gas_to) external onlyRoot
```

**Parameters:**

| Name         | Type    | Description                         |
| ------------ | ------- | ----------------------------------- |
| code         | TvmCell | Election’s platform code            |
| new\_version | uint32  | New version of election’s platform  |
| sendGasTo    | address | Address where to send remaining gas |

**Events emitted:**

* ElectionCodeUpgraded

#### **`onCodeUpgrade`**

Takes current version info and creates origin node after contract initialization.

```
function onCodeUpgrade(TvmCell upgrade_data) private
```

**Parameters:**

| Name          | Type    | Description                           |
| ------------- | ------- | ------------------------------------- |
| upgrade\_data | TvmCell | Upgraded election data in cell format |

#### **`_buildUserDataParams`**

Builds user data params.

```
function _buildUserDataParams(address user) private view returns (TvmCell)
```

**Parameters:**

| Name | Type    | Description       |
| ---- | ------- | ----------------- |
| user | address | User data address |

**Return value:**

| Type    | Description                     |
| ------- | ------------------------------- |
| TvmCell | User Data params in cell format |

#### **`_buildPlatformInitData`**

Sets initial platform data.

```
function _buildPlatformInitData(address platform_root, uint8 platform_type, TvmCell initial_data) private view returns (TvmCell)
```

**Parameters:**

| Name           | Type    | Description                          |
| -------------- | ------- | ------------------------------------ |
| platform\_root | address | Address of the platform              |
| platform\_type | uint8   | Type of the platform                 |
| initial\_data  | TvmCell | Initial platform data in cell format |

**Return value:**

| Type    | Description                           |
| ------- | ------------------------------------- |
| TvmCell | Platform initial state in cell format |


---

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