w-ng5/esm5/w-ng5.js

Angular Generic Filters to *ngFor

import { Pipe, NgModule } from '@angular/core';

var FilterPipe = /** @class */ (function () {
    function FilterPipe() {
    }
    FilterPipe.prototype.transform = function (values, filter) {
        if (filter instanceof Array) {
            return this.checkComplexType(values, filter);
        }
        else {
            return this.checkSimpleType(values, filter);
        }
    };
    FilterPipe.prototype.checkSimpleType = function (values, filter) {
        if (!values || !filter) {
            return values;
        }
        return values.filter(function (item) { return item.toString().toLowerCase().indexOf(filter.toString().toLowerCase()) !== -1; });
    };
    FilterPipe.prototype.checkComplexType = function (values, filter) {
        var _this = this;
        if (!values || !filter || filter.length === 0) {
            return values;
        }
        var result = [];
        values.forEach(function (row) {
            var match = false;
            filter.forEach(function (field) {
                match = match || _this.checkValue(row, field);
            });
            if (match) {
                result.push(row);
            }
        });
        return result;
    };
    FilterPipe.prototype.checkValue = function (item, filter) {
        if (!filter || !filter.field || !filter.value || filter.value === '') {
            return true;
        }
        if (this.existDot(filter.field)) {
            return this.parseValue(item, filter.value, filter.field);
        }
        else {
            if (item[filter.field]) {
                return item[filter.field].toString().toLowerCase().indexOf(filter.value.toString().toLowerCase()) !== -1;
            }
            else {
                return false;
            }
        }
    };
    FilterPipe.prototype.parseValue = function (reference, search, filter) {
        var fields = filter.split('.');
        return this.existFieldValue(reference, search, fields, 0);
    };
    FilterPipe.prototype.existDot = function (path) {
        return path.indexOf('.') > -1;
    };
    FilterPipe.prototype.existFieldValue = function (obj, search, fieldFind, indexFind) {
        var ref = obj[fieldFind[indexFind]];
        if (indexFind === fieldFind.length - 1) {
            if (ref) {
                return ref.toString().toLowerCase().indexOf(search.toString().toLowerCase()) !== -1;
            }
            else {
                return false;
            }
        }
        else if (ref) {
            return this.existFieldValue(ref, search, fieldFind, ++indexFind);
        }
        else {
            return false;
        }
    };
    return FilterPipe;
}());
FilterPipe.decorators = [
    { type: Pipe, args: [{
                name: 'filter',
                pure: true
            },] },
];
var PipesModule = /** @class */ (function () {
    function PipesModule() {
    }
    return PipesModule;
}());
PipesModule.decorators = [
    { type: NgModule, args: [{
                declarations: [FilterPipe],
                exports: [FilterPipe],
                providers: [FilterPipe]
            },] },
];

export { FilterPipe, PipesModule };
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