@bcc-code/feathers-arangodb/lib/searchBuilder.js

ArangoDB Service/Adapter for FeathersJS

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.generateFuzzyStatement = exports.isQueryTypeCorrect = void 0;
const arangojs_1 = require("arangojs");
function isQueryTypeCorrect(query) {
    return ['string', 'number'].includes(typeof query);
}
exports.isQueryTypeCorrect = isQueryTypeCorrect;
function generateFuzzyStatement(fields, query) {
    const modifiedQuery = determineQueryType(query);
    const searchStatements = [];
    for (const field of fields) {
        const statement = getSearchStatement(field, modifiedQuery);
        if (!statement)
            continue;
        searchStatements.push(statement);
    }
    if (!searchStatements.length)
        return undefined;
    const searchConditions = arangojs_1.aql.join(searchStatements, ' OR ');
    return searchConditions;
}
exports.generateFuzzyStatement = generateFuzzyStatement;
function getSearchStatement(field, query) {
    if (typeof query.value !== field.type)
        return undefined;
    if (!field.isFuzzy) {
        return (0, arangojs_1.aql) `doc[${field.name}] == ${query.value}`;
    }
    if (query.exact) {
        return (0, arangojs_1.aql) `PHRASE(doc[${field.name}], ${query.value}, "space_delimited")`;
    }
    return (0, arangojs_1.aql) `NGRAM_MATCH(doc[${field.name}], ${query.value}, 0.6 , "fuzzy_search")`;
}
function determineQueryType(value) {
    let exact = false;
    if (typeof value === 'string' && hasQuotes(value)) {
        value = value.slice(1, -1);
        exact = true;
    }
    return { value, exact };
}
const hasQuotes = (string) => {
    const quoteCharacters = ["'", "\""];
    for (const quoteCharacter of quoteCharacters) {
        if (string.startsWith(quoteCharacter) && string.endsWith(quoteCharacter))
            return true;
    }
    return false;
};