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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | 1x 1x 1x 1x 1x 1x 1x 4x 4x 4x 4x 4x | import { Logger } from "../../../logger";
import { IRequest } from "../../../server/request";
import { DataType } from "../../data/data-type";
import { Database } from "../../data/database";
import { DatabaseValue } from "../../data/database-value";
import { SortedSet } from "../../data/sorted-set";
import { RedisToken } from "../../protocol/redis-token";
import { IRespCommand } from "../resp-command";
/**
* Available since 1.2.0.
*
* ZREM key member [member ...]
*
* Removes the specified members from the sorted set stored at key. Non existing members are ignored.
*
* An error is returned when key exists and does not hold a sorted set.
*
* **Return value**<br>
* Integer reply, specifically:
*
* The number of members removed from the sorted set, not including non existing members.
*
*/
export class ZRemCommand extends IRespCommand {
public DbDataType = DataType.ZSET
public maxParams = -1
public minParams = 2
public name = "zrem"
private logger: Logger = new Logger(module.id);
public execSync(request: IRequest, db: Database): RedisToken {
this.logger.debug(
`${request.getCommand()}.execute(%s)`,
...request.getParams()
);
const zkey: string = request.getParam(0);
let result: number = 0;
const dbKey: DatabaseValue = db.getOrDefault(
zkey,
new DatabaseValue(
DataType.ZSET,
new SortedSet()
)
);
for (let index = 1; index < request.getParams().length; index++) {
if (dbKey.getSortedSet().has(request.getParam(index))) {
++result;
dbKey.getSortedSet().del(request.getParam(index));
}
}
if (dbKey.getSortedSet().length > 0) {
db.put(
zkey,
dbKey
);
} else {
this.logger.debug(`Removing empty zset ${zkey}`);
db.remove(zkey);
}
return RedisToken.integer(result);
}
}
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