mysql-query-placeholders/build/mqp.js

Build prepared statements from named parameters.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.queryBuilder = void 0;
exports.queryBuilder = (query, data, options = { useNullForMissing: true }) => {
    const values = [];
    if (!data) {
        return {
            sql: query,
            values,
        };
    }
    return {
        sql: query.replace(/(::?)([\w.]+)(\.?)/g, (_, prefix, key) => {
            const value = getObjectValue(data, key);
            if (typeof value !== 'undefined' && value !== null) {
                values.push(value);
                return prefix.replace(/:/g, '?');
            }
            else if (options.useNullForMissing) {
                values.push(null);
                return prefix.replace(/:/g, '?');
            }
            else {
                return errorMissingValue(key, query, data);
            }
        }),
        values,
    };
};
const getObjectValue = (object, keyName) => {
    const keys = keyName.split('.');
    if (keys.length === 1) {
        if (typeof object === 'object') {
            if (keys[0] in object) {
                return object[keys[0]];
            }
            return undefined;
        }
        return undefined;
    }
    else {
        const [parentKey, ...restElements] = keys;
        if (!object)
            return undefined;
        return getObjectValue(object[parentKey], restElements.join('.'));
    }
};
const errorMissingValue = (key, query, data) => {
    throw new Error(`Missing value for statement.
    ${key} not provided for statement:
    ${query}
    Data provided: ${JSON.stringify(data)}`);
};
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