304 lines
12 KiB
JavaScript
304 lines
12 KiB
JavaScript
import sqlGenGenSearchStr from "./sql-generator-gen-search-str";
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import sqlGenGenQueryStr from "./sql-generator-gen-query-str";
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/**
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* # SQL Query Generator
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* @description Generates an SQL Query for node module `mysql` or `serverless-mysql`
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*/
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export default function sqlGenerator({ tableName, genObject, dbFullName, count }) {
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const finalQuery = genObject?.query ? genObject.query : undefined;
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const queryKeys = finalQuery ? Object.keys(finalQuery) : undefined;
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const sqlSearhValues = [];
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let fullTextMatchStr = genObject?.fullTextSearch
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? ` MATCH(${genObject.fullTextSearch.fields
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.map((f) => genObject.join ? `${tableName}.${String(f)}` : `${String(f)}`)
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.join(",")}) AGAINST (? IN BOOLEAN MODE)`
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: undefined;
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const fullTextSearchStr = genObject?.fullTextSearch
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? genObject.fullTextSearch.searchTerm
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.split(` `)
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.map((t) => `${t}`)
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.join(" ")
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: undefined;
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let { str: queryString, values } = sqlGenGenQueryStr({
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table_name: tableName,
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append_table_names: true,
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full_text_match_str: fullTextMatchStr,
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full_text_search_str: fullTextSearchStr,
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genObject,
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});
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sqlSearhValues.push(...values);
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const sqlSearhString = queryKeys?.map((field) => {
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const queryObj = finalQuery?.[field];
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if (!queryObj)
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return;
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if (queryObj.__query) {
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const subQueryGroup = queryObj.__query;
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const subSearchKeys = Object.keys(subQueryGroup);
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const subSearchString = subSearchKeys.map((_field) => {
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const newSubQueryObj = subQueryGroup?.[_field];
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if (newSubQueryObj) {
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const { str, values } = sqlGenGenSearchStr({
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queryObj: newSubQueryObj,
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field: newSubQueryObj.fieldName || _field,
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join: genObject?.join,
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table_name: tableName,
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});
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sqlSearhValues.push(...values);
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return str;
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}
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});
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return ("(" +
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subSearchString.join(` ${queryObj.operator || "AND"} `) +
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")");
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}
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const { str, values } = sqlGenGenSearchStr({
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queryObj,
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field: queryObj.fieldName || field,
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join: genObject?.join,
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table_name: tableName,
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});
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sqlSearhValues.push(...values);
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return str;
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});
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const cleanedUpSearchStr = sqlSearhString?.filter((str) => typeof str == "string");
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const isSearchStr = cleanedUpSearchStr?.[0] && cleanedUpSearchStr.find((str) => str);
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if (isSearchStr) {
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const stringOperator = genObject?.searchOperator || "AND";
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queryString += ` WHERE ${cleanedUpSearchStr.join(` ${stringOperator} `)}`;
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}
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if (genObject?.fullTextSearch && fullTextSearchStr && fullTextMatchStr) {
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queryString += `${isSearchStr ? " AND" : " WHERE"} ${fullTextMatchStr}`;
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sqlSearhValues.push(fullTextSearchStr);
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}
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if (genObject?.group) {
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let group_by_txt = ``;
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if (typeof genObject.group == "string") {
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group_by_txt = genObject.group;
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}
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else if (Array.isArray(genObject.group)) {
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for (let i = 0; i < genObject.group.length; i++) {
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const group = genObject.group[i];
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if (typeof group == "string") {
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group_by_txt += `\`${group.toString()}\``;
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}
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else if (typeof group == "object" && group.table) {
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group_by_txt += `${group.table}.${String(group.field)}`;
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}
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else if (typeof group == "object") {
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group_by_txt += `${String(group.field)}`;
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}
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if (i < genObject.group.length - 1) {
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group_by_txt += ",";
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}
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}
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}
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else if (typeof genObject.group == "object") {
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if (genObject.group.table) {
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group_by_txt = `${genObject.group.table}.${String(genObject.group.field)}`;
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}
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else {
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group_by_txt = `${String(genObject.group.field)}`;
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}
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}
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queryString += ` GROUP BY ${group_by_txt}`;
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}
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function grabOrderString(order) {
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let orderFields = [];
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let orderSrt = ``;
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if (genObject?.fullTextSearch && genObject.fullTextSearch.scoreAlias) {
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orderFields.push(genObject.fullTextSearch.scoreAlias);
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}
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else if (genObject?.join) {
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orderFields.push(`${tableName}.${String(order.field)}`);
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}
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else {
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orderFields.push(order.field);
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}
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orderSrt += ` ${orderFields.join(", ")} ${order.strategy}`;
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return orderSrt;
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}
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if (genObject?.order) {
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let orderSrt = ` ORDER BY`;
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if (Array.isArray(genObject.order)) {
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for (let i = 0; i < genObject.order.length; i++) {
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const order = genObject.order[i];
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if (order) {
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orderSrt +=
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grabOrderString(order) +
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(i < genObject.order.length - 1 ? `,` : "");
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}
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}
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}
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else {
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orderSrt += grabOrderString(genObject.order);
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}
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queryString += ` ${orderSrt}`;
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}
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if (genObject?.limit && !count)
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queryString += ` LIMIT ${genObject.limit}`;
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if (genObject?.offset) {
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queryString += ` OFFSET ${genObject.offset}`;
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}
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else if (genObject?.page && genObject.limit && !count) {
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queryString += ` OFFSET ${(genObject.page - 1) * genObject.limit}`;
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}
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return {
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string: queryString,
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values: sqlSearhValues,
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};
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}
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// let queryString = (() => {
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// let str = "SELECT";
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// if (genObject?.select_sql) {
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// str += ` ${genObject.select_sql}`;
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// } else if (genObject?.selectFields?.[0]) {
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// if (genObject.join) {
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// str += sqlGenGrabSelectFieldSQL<T>({
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// selectFields: genObject.selectFields,
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// append_table_names: true,
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// table_name: tableName,
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// });
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// } else {
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// str += sqlGenGrabSelectFieldSQL({
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// selectFields: genObject.selectFields,
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// table_name: tableName,
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// });
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// }
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// } else {
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// if (genObject?.join) {
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// str += ` ${tableName}.*`;
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// } else {
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// str += " *";
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// }
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// }
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// if (genObject?.countSubQueries) {
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// let countSqls: string[] = [];
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// for (let i = 0; i < genObject.countSubQueries.length; i++) {
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// const countSubQuery = genObject.countSubQueries[i];
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// if (!countSubQuery) continue;
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// const tableAlias = countSubQuery.table_alias;
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// let subQStr = `(SELECT COUNT(*)`;
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// subQStr += ` FROM ${countSubQuery.table}${
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// tableAlias ? ` ${tableAlias}` : ""
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// }`;
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// subQStr += ` WHERE (`;
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// for (let j = 0; j < countSubQuery.srcTrgMap.length; j++) {
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// const csqSrc = countSubQuery.srcTrgMap[j];
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// if (!csqSrc) continue;
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// subQStr += ` ${tableAlias || countSubQuery.table}.${
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// csqSrc.src
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// }`;
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// if (typeof csqSrc.trg == "string") {
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// subQStr += ` = ?`;
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// sqlSearhValues.push(csqSrc.trg);
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// } else if (typeof csqSrc.trg == "object") {
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// subQStr += ` = ${csqSrc.trg.table}.${csqSrc.trg.field}`;
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// }
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// if (j < countSubQuery.srcTrgMap.length - 1) {
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// subQStr += ` AND `;
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// }
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// }
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// subQStr += ` )) AS ${countSubQuery.alias}`;
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// countSqls.push(subQStr);
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// }
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// str += `, ${countSqls.join(",")}`;
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// }
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// if (genObject?.join) {
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// const existingJoinTableNames: string[] = [tableName];
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// str +=
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// "," +
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// genObject.join
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// .flat()
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// .filter((j) => !isUndefined(j))
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// .map((joinObj) => {
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// const joinTableName = joinObj.alias
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// ? joinObj.alias
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// : joinObj.tableName;
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// if (existingJoinTableNames.includes(joinTableName))
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// return null;
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// existingJoinTableNames.push(joinTableName);
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// if (joinObj.group_concat) {
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// return sqlGenGrabConcatStr({
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// field: `${joinTableName}.${joinObj.group_concat.field}`,
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// alias: joinObj.group_concat.alias,
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// separator: joinObj.group_concat.separator,
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// });
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// } else if (joinObj.selectFields) {
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// return joinObj.selectFields
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// .map((selectField) => {
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// if (typeof selectField == "string") {
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// return `${joinTableName}.${selectField}`;
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// } else if (typeof selectField == "object") {
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// let aliasSelectField = selectField.count
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// ? `COUNT(${joinTableName}.${selectField.field})`
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// : `${joinTableName}.${selectField.field}`;
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// if (selectField.alias)
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// aliasSelectField += ` AS ${selectField.alias}`;
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// return aliasSelectField;
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// }
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// })
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// .join(",");
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// } else {
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// return `${joinTableName}.*`;
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// }
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// })
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// .filter((_) => Boolean(_))
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// .join(",");
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// }
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// if (
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// genObject?.fullTextSearch &&
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// fullTextMatchStr &&
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// fullTextSearchStr
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// ) {
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// str += `, ${fullTextMatchStr} AS ${genObject.fullTextSearch.scoreAlias}`;
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// sqlSearhValues.push(fullTextSearchStr);
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// }
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// str += ` FROM ${tableName}`;
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// if (genObject?.join) {
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// str +=
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// " " +
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// genObject.join
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// .flat()
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// .filter((j) => !isUndefined(j))
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// .map((join) => {
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// return (
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// join.joinType +
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// " " +
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// (join.alias
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// ? `${join.tableName}` + " " + join.alias
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// : `${join.tableName}`) +
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// " ON " +
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// (() => {
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// if (Array.isArray(join.match)) {
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// return (
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// "(" +
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// join.match
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// .map((mtch) =>
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// sqlGenGenJoinStr({
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// mtch,
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// join,
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// table_name: tableName,
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// }),
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// )
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// .join(
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// join.operator
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// ? ` ${join.operator} `
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// : " AND ",
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// ) +
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// ")"
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// );
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// } else if (typeof join.match == "object") {
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// return sqlGenGenJoinStr({
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// mtch: join.match,
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// join,
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// table_name: tableName,
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// });
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// }
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// })()
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// );
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// })
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// .join(" ");
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// }
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// return str;
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// })();
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