@qrvey/formula-lang/dist/module/functions/right.js

QFormula support for qrvey projects

import { AST_PRIMITIVES, ELASTICSEARCH_SCRIPT_NAMES, OPERATION_SCOPE, } from '../constants';
import { isNumberParam, isStringParam } from '../utils';
import { greaterThanOrEqualToReference } from '../utils/greaterThanOrEqualToReference';
import { isInteger } from '../utils/isInteger';
/**
 * `RIGHT` Returns the last character or characters in a text string, based on the number of characters you specify.
 */
export const RIGHT = {
    identifier: 'RIGHT',
    operationScope: OPERATION_SCOPE.RAW,
    functionScope: [OPERATION_SCOPE.RAW],
    parameters: [
        {
            identifier: 'CURRENT',
            optional: false,
            expectedPrimitive: AST_PRIMITIVES.STRING,
            validator: [isStringParam],
        },
        {
            identifier: 'EXTRACT_LENGTH',
            optional: true,
            expectedPrimitive: AST_PRIMITIVES.NUMBER,
            validator: [
                isNumberParam,
                greaterThanOrEqualToReference(0),
                isInteger,
            ],
        },
    ],
    transpiler: {
        elasticsearch,
        snowflake,
        redshift,
        postgresql,
        databricks,
    },
    primitiveResult: AST_PRIMITIVES.STRING,
};
function elasticsearch(current, length) {
    const _length = length !== null && length !== void 0 ? length : 1;
    return `${ELASTICSEARCH_SCRIPT_NAMES.subString}(${current}, ${_length} * -1, ${_length})`;
}
function snowflake(current, length) {
    return `RIGHT(${current}, FLOOR(${length !== null && length !== void 0 ? length : 1})::INTEGER)`;
}
function SQL(current, length) {
    const _length = `FLOOR(${length !== null && length !== void 0 ? length : 1})::INTEGER`;
    return `
    (case
        when ${length !== null && length !== void 0 ? length : 1} IS NULL then NULL
		when (${_length} < 0) then '' 
		else
        RIGHT(${current}, ${_length})
	end
    )`.trim();
}
function redshift(current, length) {
    return SQL(current, length);
}
function postgresql(current, length) {
    return SQL(current, length);
}
function databricks(current, length) {
    return SQL(current, length);
}
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