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fix(TimeDataTable options): switch to better options

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This commit is contained in:
Philipp Kunz 2022-03-14 20:00:03 +01:00
parent 51e76623f9
commit b67acc1b78
1 changed files with 18 additions and 10 deletions
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28
ts/smartclickhouse.classes.timedatatable.ts
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@ -26,14 +26,22 @@ export interface IColumnInfo {
datetime_precision: '3';
}
export interface ITimeDataTableOptions {
tableName: string;
retainDataForDays: number;
}
export class TimeDataTable {
public static async getTable(smartClickHouseDbRefArg: SmartClickHouseDb, tableNameArg: string) {
const newTable = new TimeDataTable(smartClickHouseDbRefArg, tableNameArg);
const newTable = new TimeDataTable(smartClickHouseDbRefArg, {
tableName: tableNameArg,
retainDataForDays: 30
});
// create table in clickhouse
await smartClickHouseDbRefArg.clickhouseClient
.queryPromise(`
CREATE TABLE IF NOT EXISTS ${newTable.tableName} (
CREATE TABLE IF NOT EXISTS ${newTable.options.tableName} (
timestamp DateTime64(3, 'Europe/Berlin'),
message String
) ENGINE=MergeTree() ORDER BY timestamp`);
@ -41,13 +49,13 @@ export class TimeDataTable {
// lets adjust the TTL
await smartClickHouseDbRefArg.clickhouseClient
.queryPromise(`
ALTER TABLE ${newTable.tableName} MODIFY TTL toDateTime(timestamp) + INTERVAL 1 MONTH
ALTER TABLE ${newTable.options.tableName} MODIFY TTL toDateTime(timestamp) + INTERVAL ${newTable.options.retainDataForDays} DAY
`);
await newTable.updateColumns();
console.log(`=======================`)
console.log(
`table with name "${newTable.tableName}" in databse ${newTable.smartClickHouseDbRef.options.database} has the following columns:`
`table with name "${newTable.options.tableName}" in databse ${newTable.smartClickHouseDbRef.options.database} has the following columns:`
);
for (const column of newTable.columns) {
console.log(`>> ${column.name}: ${column.type}`);
@ -59,11 +67,11 @@ export class TimeDataTable {
// INSTANCE
public smartClickHouseDbRef: SmartClickHouseDb;
public tableName: string;
public options: ITimeDataTableOptions;
constructor(smartClickHouseDbRefArg: SmartClickHouseDb, tableNameArg: string) {
constructor(smartClickHouseDbRefArg: SmartClickHouseDb, optionsArg: ITimeDataTableOptions) {
this.smartClickHouseDbRef = smartClickHouseDbRefArg;
this.tableName = tableNameArg;
this.options = optionsArg;
}
public columns: IColumnInfo[] = [];
@ -75,7 +83,7 @@ export class TimeDataTable {
this.columns = await this.smartClickHouseDbRef.clickhouseClient.queryPromise(`
SELECT * FROM system.columns
WHERE database LIKE '${this.smartClickHouseDbRef.options.database}'
AND table LIKE '${this.tableName}'
AND table LIKE '${this.options.tableName}'
`);
return this.columns;
}
@ -120,7 +128,7 @@ export class TimeDataTable {
await checkPath(pathArg, typeArg, true);
return;
}
const alterString = `ALTER TABLE ${this.tableName} ADD COLUMN ${pathArg} ${typeArg} FIRST`
const alterString = `ALTER TABLE ${this.options.tableName} ADD COLUMN ${pathArg} ${typeArg} FIRST`
try {
await this.smartClickHouseDbRef.clickhouseClient.queryPromise(`
${alterString}
@ -154,7 +162,7 @@ export class TimeDataTable {
storageJson[key] = value;
}
const result = await this.smartClickHouseDbRef.clickhouseClient.insertPromise(this.tableName, [
const result = await this.smartClickHouseDbRef.clickhouseClient.insertPromise(this.options.tableName, [
storageJson,
]);
return result;