66 lines
2.2 KiB
TypeScript
66 lines
2.2 KiB
TypeScript
import {
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DSQL_IndexSchemaType,
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DSQL_MYSQL_SHOW_INDEXES_Type,
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} from "../../types";
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import grabDSQLSchemaIndexComment from "../utils/grab-dsql-schema-index-comment";
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import dbHandler from "../../functions/backend/dbHandler";
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type Param = {
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tableName: string;
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dbFullName: string;
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indexes: DSQL_IndexSchemaType[];
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};
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/**
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* Handle DATASQUIREL Table Indexes
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* ===================================================
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* @description Iterate through each datasquirel schema
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* table index(if available), and perform operations
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*/
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export default async function handleIndexescreateDbFromSchema({
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dbFullName,
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tableName,
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indexes,
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}: Param) {
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const allExistingIndexes = (await dbHandler({
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query: `SHOW INDEXES FROM \`${dbFullName}\`.\`${tableName}\``,
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})) as DSQL_MYSQL_SHOW_INDEXES_Type[];
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for (let g = 0; g < indexes.length; g++) {
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const { indexType, indexName, indexTableFields, alias } = indexes[g];
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if (!alias?.match(/./)) continue;
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/**
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* @description Check for existing Index in MYSQL db
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*/
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try {
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const existingKeyInDb = allExistingIndexes.filter(
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(indexObject) => indexObject.Key_name === alias
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);
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if (!existingKeyInDb[0])
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throw new Error("This Index Does not Exist");
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} catch (error) {
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/**
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* @description Create new index if determined that it
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* doesn't exist in MYSQL db
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*/
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const queryString = `CREATE${
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indexType == "full_text" ? " FULLTEXT" : ""
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} INDEX \`${alias}\` ON \`${dbFullName}\`.\`${tableName}\`(${indexTableFields
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?.map((nm) => nm.value)
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.map((nm) => `\`${nm}\``)
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.join(
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","
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)}) COMMENT '${grabDSQLSchemaIndexComment()} ${indexName}'`;
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const addIndex = await dbHandler({ query: queryString });
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}
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}
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const allExistingIndexesAfterUpdate = (await dbHandler({
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query: `SHOW INDEXES FROM \`${dbFullName}\`.\`${tableName}\``,
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})) as DSQL_MYSQL_SHOW_INDEXES_Type[];
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}
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