@codenameryuu/adonis-datatable/build/src/request.js

Package server side datatables on AdonisJS 6

export default class Request {
    request;
    constructor(request) {
        this.request = request;
    }
    input(key, defaultValue) {
        const keys = key.split('.');
        const columns = this.request.input(keys[0]);
        if (!columns) {
            return defaultValue;
        }
        keys.shift();
        const value = keys.reduce((acc, curr) => acc && acc[curr], columns);
        return value;
    }
    columns() {
        return this.input('columns');
    }
    isSearchable() {
        return this.input('search.value') !== '';
    }
    isRegex(index) {
        return this.input(`columns.${index}.search.regex`) === 'true';
    }
    orderableColumns() {
        if (!this.isOrderable()) {
            return [];
        }
        let orderable = [];
        for (let i = 0; i < this.input('order').length; i++) {
            const orderColumn = this.input(`order.${i}.column`);
            const direction = this.input(`order.${i}.dir`);
            const orderDirection = direction && direction.toLowerCase() === 'asc' ? 'asc' : 'desc';
            if (this.isColumnOrderable(orderColumn)) {
                orderable.push({ column: orderColumn, direction: orderDirection });
            }
        }
        return orderable;
    }
    isOrderable() {
        return this.input('order') && this.input('order').length > 0;
    }
    isColumnOrderable(index) {
        return this.input(`columns.${index}.orderable`, 'true') === 'true';
    }
    searchableColumnIndex() {
        const searchable = [];
        const columns = this.input('columns');
        for (let index = 0; index < columns.length; index++) {
            if (this.isColumnSearchable(index, false)) {
                searchable.push(index);
            }
        }
        return searchable;
    }
    isColumnSearchable(index, columnSearch = true) {
        if (columnSearch) {
            return ((this.input(`columns.${index}.searchable`, 'true') === 'true' ||
                this.input(`columns.${index}.searchable`, 'true') === true) &&
                this.columnKeyword(index) !== '');
        }
        return (this.input(`columns.${index}.searchable`, 'true') === 'true' ||
            this.input(`columns.${index}.searchable`, 'true') === true);
    }
    columnKeyword(index) {
        const keyword = this.input(`columns.${index}.search.value`) ?? '';
        return this.prepareKeyword(keyword);
    }
    prepareKeyword(keyword) {
        if (Array.isArray(keyword)) {
            keyword = keyword;
            return keyword.join(' ');
        }
        return keyword;
    }
    keyword() {
        const keyword = this.input('search.value') ?? '';
        return this.prepareKeyword(keyword);
    }
    columnName(index) {
        const column = this.input(`columns.${index}`);
        return column && column['name'] && column['name'] !== '' ? column['name'] : column?.['data'];
    }
    isPaginationable() {
        return (this.input('start') !== null && this.input('length') !== null && this.input('length') !== -1);
    }
    start() {
        const start = this.input('start', 0);
        return Number(start) ? start : 0;
    }
    length() {
        const length = this.input('length', 0);
        return Number(length) ? length : 10;
    }
    draw() {
        const draw = this.input('draw', 0);
        return Number(draw) ? draw : 0;
    }
    all() {
        return this.request.all();
    }
}