Issue in insertion to an array inside a struct

Question

I have issue in the following smartcontract.

I have defined a struct which includes an string array. And I have defined a mapping for this struct.

struct Stonedetails {

        uint stoneweight;
        string stoneimagehash;
        string stoneidbywholesaledealer;
        string[] stoneidsbycutter;


}

mapping (uint=>Stonedetails) public stonedetailsTable;

I have stored the values in struct using the following methods inside a function by passing parameters.

 stonedetailsTable[stoneid].stoneweight =stoneweight;
 stonedetailsTable[stoneid].stoneimagehash =stoneimagehash;
 stonedetailsTable[stoneid].stoneidbywholesaledealer =stoneidbywholesaledealer;

How can I store the values in string array? Is it the way to store the values one by one?

stonedetailsTable[stoneid1].stoneidsbycutter.push(stoneidbycuttervalue);

How can I find the length of array using stoneidsbycutter.length?

Answer 1

Your code looks correct. I tested the following and got a length of 1 as expected:

pragma solidity ^0.4.17;

contract Test {
    struct Stonedetails {
        uint stoneweight;
        string stoneimagehash;
        string stoneidbywholesaledealer;
        string[] stoneidsbycutter;
    }

    mapping (uint=>Stonedetails) public stonedetailsTable;

    function Test() public {
        stonedetailsTable[0].stoneidsbycutter.push("hello");
    }

    function getLength() public constant returns (uint256) {
        return stonedetailsTable[0].stoneidsbycutter.length; // returns 1
    }
}