Contract Factories2019 Community Moderator ElectionWhat is the BigMap container and why does it...
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Contract Factories
Contract Factories
2019 Community Moderator ElectionWhat is the BigMap container and why does it matter?Parameter passed when calling CONTRACT in michelsonA contract calling another contractGet a returned value when calling a Michelson contractHow can I deploy a Michelson smart contract?Is there a way to call a function inside a contract from a function in another contract?
Has there been any research into how a contract factory might be made in Michelson/Liquidity?
To elaborate, in Solidity a contract factory might look like:
pragma solidity ^0.4.8;
contract Bakery {
// index of created contracts
address[] public contracts;
// useful to know the row count in contracts index
function getContractCount()
public
constant
returns(uint contractCount)
{
return contracts.length;
}
// deploy a new contract
function newCookie()
public
returns(address newContract)
{
Cookie c = new Cookie();
contracts.push(c);
return c;
}
}
contract Cookie {
// suppose the deployed contract has a purpose
function getFlavor()
public
constant
returns (string flavor)
{
return "mmm ... chocolate chip";
}
}
(referenced from https://ethereum.stackexchange.com/questions/13415/deploy-contract-from-contract-in-solidity)
This is a powerful feature in DAPP development, as it allows you to build an object oriented structure for your DAPP where requests can create new contracts. It is a well established design pattern, so what would the equivalent be in the Tezos ecosystem?
michelson
asked 4 hours ago
RobRob
2885
add a comment |
Has there been any research into how a contract factory might be made in Michelson/Liquidity?
To elaborate, in Solidity a contract factory might look like:
pragma solidity ^0.4.8;
contract Bakery {
// index of created contracts
address[] public contracts;
// useful to know the row count in contracts index
function getContractCount()
public
constant
returns(uint contractCount)
{
return contracts.length;
}
// deploy a new contract
function newCookie()
public
returns(address newContract)
{
Cookie c = new Cookie();
contracts.push(c);
return c;
}
}
contract Cookie {
// suppose the deployed contract has a purpose
function getFlavor()
public
constant
returns (string flavor)
{
return "mmm ... chocolate chip";
}
}
(referenced from https://ethereum.stackexchange.com/questions/13415/deploy-contract-from-contract-in-solidity)
This is a powerful feature in DAPP development, as it allows you to build an object oriented structure for your DAPP where requests can create new contracts. It is a well established design pattern, so what would the equivalent be in the Tezos ecosystem?
michelson
asked 4 hours ago
RobRob
2885
It appears likeCREATE_CONTRACT { storage 'g ; parameter 'p ; code ... }would work, but this will bloat the size of a contract a bit, and it feels like there should be a way to handle this gracefully like in Solidity's Java style class instantiation.
– Rob
4 hours ago
If not, a clean example in Michelson would be nice.
– Rob
4 hours ago
ok cool, probably a ways out then.
– Rob
3 hours ago
1
I put a comment that I deleted to convert it into an answer. I missed your comment that was added afterwards. My apologies for this.
– FFF
3 hours ago
add a comment |
Has there been any research into how a contract factory might be made in Michelson/Liquidity?
To elaborate, in Solidity a contract factory might look like:
pragma solidity ^0.4.8;
contract Bakery {
// index of created contracts
address[] public contracts;
// useful to know the row count in contracts index
function getContractCount()
public
constant
returns(uint contractCount)
{
return contracts.length;
}
// deploy a new contract
function newCookie()
public
returns(address newContract)
{
Cookie c = new Cookie();
contracts.push(c);
return c;
}
}
contract Cookie {
// suppose the deployed contract has a purpose
function getFlavor()
public
constant
returns (string flavor)
{
return "mmm ... chocolate chip";
}
}
(referenced from https://ethereum.stackexchange.com/questions/13415/deploy-contract-from-contract-in-solidity)
This is a powerful feature in DAPP development, as it allows you to build an object oriented structure for your DAPP where requests can create new contracts. It is a well established design pattern, so what would the equivalent be in the Tezos ecosystem?
michelson
asked 4 hours ago
RobRob
2885
Has there been any research into how a contract factory might be made in Michelson/Liquidity?
To elaborate, in Solidity a contract factory might look like:
pragma solidity ^0.4.8;
contract Bakery {
// index of created contracts
address[] public contracts;
// useful to know the row count in contracts index
function getContractCount()
public
constant
returns(uint contractCount)
{
return contracts.length;
}
// deploy a new contract
function newCookie()
public
returns(address newContract)
{
Cookie c = new Cookie();
contracts.push(c);
return c;
}
}
contract Cookie {
// suppose the deployed contract has a purpose
function getFlavor()
public
constant
returns (string flavor)
{
return "mmm ... chocolate chip";
}
}
(referenced from https://ethereum.stackexchange.com/questions/13415/deploy-contract-from-contract-in-solidity)
This is a powerful feature in DAPP development, as it allows you to build an object oriented structure for your DAPP where requests can create new contracts. It is a well established design pattern, so what would the equivalent be in the Tezos ecosystem?
michelson
michelson
asked 4 hours ago
RobRob
2885
asked 4 hours ago
RobRob
2885
asked 4 hours ago
RobRob
2885
asked 4 hours ago
RobRob
2885
asked 4 hours ago
RobRob
2885
2885
It appears likeCREATE_CONTRACT { storage 'g ; parameter 'p ; code ... }would work, but this will bloat the size of a contract a bit, and it feels like there should be a way to handle this gracefully like in Solidity's Java style class instantiation.
– Rob
4 hours ago
If not, a clean example in Michelson would be nice.
– Rob
4 hours ago
ok cool, probably a ways out then.
– Rob
3 hours ago
1
I put a comment that I deleted to convert it into an answer. I missed your comment that was added afterwards. My apologies for this.
– FFF
3 hours ago
add a comment |
It appears likeCREATE_CONTRACT { storage 'g ; parameter 'p ; code ... }would work, but this will bloat the size of a contract a bit, and it feels like there should be a way to handle this gracefully like in Solidity's Java style class instantiation.
– Rob
4 hours ago
If not, a clean example in Michelson would be nice.
– Rob
4 hours ago
ok cool, probably a ways out then.
– Rob
3 hours ago
1
I put a comment that I deleted to convert it into an answer. I missed your comment that was added afterwards. My apologies for this.
– FFF
3 hours ago
It appears like
CREATE_CONTRACT { storage 'g ; parameter 'p ; code ... } would work, but this will bloat the size of a contract a bit, and it feels like there should be a way to handle this gracefully like in Solidity's Java style class instantiation.– Rob
4 hours ago
It appears like
CREATE_CONTRACT { storage 'g ; parameter 'p ; code ... } would work, but this will bloat the size of a contract a bit, and it feels like there should be a way to handle this gracefully like in Solidity's Java style class instantiation.– Rob
4 hours ago
If not, a clean example in Michelson would be nice.
– Rob
4 hours ago
If not, a clean example in Michelson would be nice.
– Rob
4 hours ago
ok cool, probably a ways out then.
– Rob
3 hours ago
ok cool, probably a ways out then.
– Rob
3 hours ago
1
1
I put a comment that I deleted to convert it into an answer. I missed your comment that was added afterwards. My apologies for this.
– FFF
3 hours ago
I put a comment that I deleted to convert it into an answer. I missed your comment that was added afterwards. My apologies for this.
– FFF
3 hours ago
add a comment |
1 Answer
1
active
oldest
votes
There is a very succinct discussion in the announcement for SmartPy https://medium.com/@SmartPy_io/introducing-smartpy-and-smartpy-io-d4013bee7d4e#15ee.
The idea is to have a contract that holds a big_map and each element of the big_map represents a contract.
This is absolutely not restricted to SmartPy and it is directly doable in Michelson, Liquidity or Fi.
This subject also appeared here:
What is the BigMap container and why does it matter?
answered 3 hours ago
FFFFFF
641212
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
There is a very succinct discussion in the announcement for SmartPy https://medium.com/@SmartPy_io/introducing-smartpy-and-smartpy-io-d4013bee7d4e#15ee.
The idea is to have a contract that holds a big_map and each element of the big_map represents a contract.
This is absolutely not restricted to SmartPy and it is directly doable in Michelson, Liquidity or Fi.
This subject also appeared here:
What is the BigMap container and why does it matter?
answered 3 hours ago
FFFFFF
641212
add a comment |
There is a very succinct discussion in the announcement for SmartPy https://medium.com/@SmartPy_io/introducing-smartpy-and-smartpy-io-d4013bee7d4e#15ee.
The idea is to have a contract that holds a big_map and each element of the big_map represents a contract.
This is absolutely not restricted to SmartPy and it is directly doable in Michelson, Liquidity or Fi.
This subject also appeared here:
What is the BigMap container and why does it matter?
answered 3 hours ago
FFFFFF
641212
add a comment |
There is a very succinct discussion in the announcement for SmartPy https://medium.com/@SmartPy_io/introducing-smartpy-and-smartpy-io-d4013bee7d4e#15ee.
The idea is to have a contract that holds a big_map and each element of the big_map represents a contract.
This is absolutely not restricted to SmartPy and it is directly doable in Michelson, Liquidity or Fi.
This subject also appeared here:
What is the BigMap container and why does it matter?
answered 3 hours ago
FFFFFF
641212
There is a very succinct discussion in the announcement for SmartPy https://medium.com/@SmartPy_io/introducing-smartpy-and-smartpy-io-d4013bee7d4e#15ee.
The idea is to have a contract that holds a big_map and each element of the big_map represents a contract.
This is absolutely not restricted to SmartPy and it is directly doable in Michelson, Liquidity or Fi.
This subject also appeared here:
What is the BigMap container and why does it matter?
answered 3 hours ago
FFFFFF
641212
edited 3 hours ago
answered 3 hours ago
FFFFFF
641212
answered 3 hours ago
FFFFFF
641212
answered 3 hours ago
FFFFFF
641212
641212
add a comment |
add a comment |
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It appears like
CREATE_CONTRACT { storage 'g ; parameter 'p ; code ... }would work, but this will bloat the size of a contract a bit, and it feels like there should be a way to handle this gracefully like in Solidity's Java style class instantiation.– Rob
4 hours ago
If not, a clean example in Michelson would be nice.
– Rob
4 hours ago
ok cool, probably a ways out then.
– Rob
3 hours ago
1
I put a comment that I deleted to convert it into an answer. I missed your comment that was added afterwards. My apologies for this.
– FFF
3 hours ago