108 lines
3.1 KiB
JavaScript
108 lines
3.1 KiB
JavaScript
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"use strict";
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const dataTypes = require("./data-types");
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const { logger } = require("./utils/logger");
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function arrayToList(array, timeZone, dialect, format2) {
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return array.reduce((sql, val, i) => {
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if (i !== 0) {
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sql += ", ";
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}
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if (Array.isArray(val)) {
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sql += `(${arrayToList(val, timeZone, dialect, format2)})`;
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} else {
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sql += escape(val, timeZone, dialect, format2);
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}
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return sql;
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}, "");
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}
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exports.arrayToList = arrayToList;
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function escape(val, timeZone, dialect, format2) {
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let prependN = false;
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if (val === void 0 || val === null) {
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return "NULL";
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}
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switch (typeof val) {
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case "boolean":
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if (["sqlite", "mssql"].includes(dialect)) {
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return +!!val;
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}
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return (!!val).toString();
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case "number":
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return val.toString();
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case "string":
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prependN = dialect === "mssql";
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break;
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}
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if (val instanceof Date) {
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val = dataTypes[dialect].DATE.prototype.stringify(val, { timezone: timeZone });
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}
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if (Buffer.isBuffer(val)) {
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if (dataTypes[dialect].BLOB) {
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return dataTypes[dialect].BLOB.prototype.stringify(val);
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}
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return dataTypes.BLOB.prototype.stringify(val);
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}
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if (Array.isArray(val)) {
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const partialEscape = (escVal) => escape(escVal, timeZone, dialect, format2);
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if (dialect === "postgres" && !format2) {
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return dataTypes.ARRAY.prototype.stringify(val, { escape: partialEscape });
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}
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return arrayToList(val, timeZone, dialect, format2);
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}
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if (!val.replace) {
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throw new Error(`Invalid value ${logger.inspect(val)}`);
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}
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if (["postgres", "sqlite", "mssql", "snowflake", "db2"].includes(dialect)) {
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val = val.replace(/'/g, "''");
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if (dialect === "postgres") {
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val = val.replace(/\0/g, "\\0");
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}
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} else {
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val = val.replace(/[\0\n\r\b\t\\'"\x1a]/g, (s) => {
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switch (s) {
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case "\0":
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return "\\0";
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case "\n":
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return "\\n";
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case "\r":
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return "\\r";
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case "\b":
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return "\\b";
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case " ":
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return "\\t";
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case "":
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return "\\Z";
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default:
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return `\\${s}`;
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}
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});
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}
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return `${(prependN ? "N'" : "'") + val}'`;
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}
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exports.escape = escape;
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function format(sql, values, timeZone, dialect) {
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values = [].concat(values);
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if (typeof sql !== "string") {
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throw new Error(`Invalid SQL string provided: ${sql}`);
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}
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return sql.replace(/\?/g, (match) => {
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if (!values.length) {
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return match;
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}
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return escape(values.shift(), timeZone, dialect, true);
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});
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}
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exports.format = format;
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function formatNamedParameters(sql, values, timeZone, dialect) {
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return sql.replace(/:+(?!\d)(\w+)/g, (value, key) => {
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if (dialect === "postgres" && value.slice(0, 2) === "::") {
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return value;
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}
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if (values[key] !== void 0) {
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return escape(values[key], timeZone, dialect, true);
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}
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throw new Error(`Named parameter "${value}" has no value in the given object.`);
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});
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}
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exports.formatNamedParameters = formatNamedParameters;
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//# sourceMappingURL=sql-string.js.map
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