Konfigurieren eines Spaltenmodals in einer Vorlage für das Raster für Spendeneinträge im Bildungswesen

Beispielkomponente 'Geschenkeintragsraster'

Dieser Beispielcodeauszug für Lightning-Webkomponenten zeigt einen Kreditkartenprozessor an und könnte als Modalfenster für das Feld "Zahlungsmethode" konfiguriert werden.

giftEntryGridPaymentAuthModal.html

<template>
    <!--
    Sample Gift Entry Grid Modal Component
    There are no implementation requirements for this component, however the modal portal size is limited.
    -->
    <lightning-card title="Credit Card Authorization">
        <div class="slds-p-around_medium">
            <form onsubmit={handleSubmit} class="slds-form">
                <!-- Row 1: PaymentMethod GiftEntry field -->
                <lightning-record-edit-form object-api-name="GiftEntry" onsuccess={handleSuccess} class="slds-m-bottom_medium">
                    <div class="slds-grid">
                        <div class="slds-col slds-size_1-of-1">
                            <lightning-input-field
                                field-name="PaymentMethod"
                                value={paymentMethod}
                                onchange={handleInputChange}
                                required
                            ></lightning-input-field>
                        </div>
                    </div>
                </lightning-record-edit-form>

                <!-- Only show credit card fields if needed -->
                <template if:true={showCreditCardFields}>
                    <!-- Row 2: NameOnCard and CardNumber -->
                    <div class="slds-grid slds-gutters slds-m-bottom_medium">
                        <div class="slds-col slds-size_1-of-2">
                            <lightning-input
                                name="NameOnCard"
                                label="Name on Card"
                                value={nameOnCard}
                                onchange={handleInputChange}
                                required
                            ></lightning-input>
                        </div>
                        <div class="slds-col slds-size_1-of-2">
                            <lightning-input
                                name="CreditCardNumber"
                                label="Credit Card Number"
                                value={creditCardNumber}
                                placeholder="XXXX-XXXX-XXXX-XXXX"
                                maxlength="19"
                                inputmode="numeric"
                                pattern="(?:\d{4}[-\s]?\d{4}[-\s]?\d{4}[-\s]?\d{4}|\d{3}[-\s]?\d{6}[-\s]?\d{5}|\d{16}|\d{15})"
                                message-when-pattern-mismatch="Enter a valid credit card number."
                                onchange={handleInputChange}
                                required
                            ></lightning-input>
                        </div>
                    </div>
                    <!-- Row 3: ExpiryMonth, ExpiryYear, CVV -->
                    <div class="slds-grid slds-gutters">
                        <div class="slds-col slds-size_1-of-3">
                            <lightning-input
                                name="ExpiryMonth"
                                label="Expiration Month"
                                value={expiryMonth}
                                onchange={handleInputChange}
                                inputmode="numeric"
                                pattern="\d{2}"
                                required
                            ></lightning-input>
                        </div>
                        <div class="slds-col slds-size_1-of-3">
                            <lightning-input
                                name="ExpiryYear"
                                label="Expiration Year"
                                value={expiryYear}
                                onchange={handleInputChange}
                                inputmode="numeric"
                                pattern="\d{2}|\d{4}"
                                required
                            ></lightning-input>
                        </div>
                        <div class="slds-col slds-size_1-of-3">
                            <lightning-input
                                name="Cvv"
                                label="CVV"
                                value={cvv}
                                onchange={handleInputChange}
                                inputmode="numeric"
                                pattern="\d{3,4}"
                                required
                            ></lightning-input>
                        </div>
                    </div>
                </template>
            </form>
        </div>
        <template if:true={showCreditCardFields}>
            <div class="slds-grid slds-grid_align-end slds-m-top_medium">
                <lightning-button
                    variant="brand"
                    label="Charge Card"
                    onclick={handleChargeCardClick}
                    class="slds-m-right_none"
                    disabled={isChargeCardDisabled}
                ></lightning-button>
            </div>
        </template>
    </lightning-card>
</template>

giftEntryGridPaymentAuthModal.js

import { LightningElement, api, track } from 'lwc';

const CONSTANTS = {
    CREDIT_CARD: 'Credit Card',
    ACH: 'ACH'
}

/**
 * Sample Gift Entry Grid Modal Component
 */
export default class giftEntryGridPaymentAuthModal extends LightningElement {
    /**
     * Required input property.
     * Not generally used within a custom component
     */
    @api
    set modalFields(value) {
        this._modalFields = value || [];
        this.initializeFields();
    }
    get modalFields() {
        return this._modalFields;
    }

    /**
     * Required input property.
     * Contains all the data for the row.
     */
    @api
    set rowData(value) {
        this._rowData = value || {};
        this.initializeFields();
    }
    get rowData() {
        return this._rowData;
    }


    // ------------------------------------------------------------
    // Required Exposed API Functions for GiftEntryGrid
    // ------------------------------------------------------------

    /**
     * Validates the component fields.
     * @returns {Object} An object with properties for isValid (boolean) and an invalidFields collection with errors
     * - isValid: true if the component fields are valid, false otherwise.
     * - invalidFields: A Set of field names and errors to render
     */
    @api
    validate() {
        let isValid = true;
        let invalidFields = new Set();
        if (!this.paymentMethod) {
            isValid = false;
            invalidFields.add('PaymentMethod');
        }
        if (this.showCreditCardFields) {
            if (!this.chargeCardClicked) {
                isValid = false;
                invalidFields.add('ChargeCard');
            }
            if (!this.creditCardNumber || !this.validateCreditCardNumber()) {
                isValid = false;
                invalidFields.add('CreditCardNumber is invalid');
            }
            if (!this.nameOnCard) {
                isValid = false;
                invalidFields.add('NameOnCard is missing');
            }
            if (!this.expiryMonth || !this.validateExpiryMonth()) {
                isValid = false;
                invalidFields.add('ExpiryMonth is not valid');
            }
            if (!this.expiryYear || !this.validateExpiryYear()) {
                isValid = false;
                invalidFields.add('ExpiryYear is not valid');
            }
            if (!this.cvv || !this.validateCVV()) {
                isValid = false;
                invalidFields.add('CVV is not valid');
            }
        }
        return { isValid, invalidFields };
    }

    /**
     * Returns values to be saved to the row. These are directly applied to the rowData object within the Grid
     * Properties in this object do not need to be actual GiftEntry fields. Dummy properties are allowed, but 
     * they will not persist to the GiftEntry row when the record is saved.
     * @returns {Object} An object with the values that represent GiftEntry fields.
     */
    @api
    getComponentValues() {
        let result = {}
        result['PaymentMethod'] = this.paymentMethod;
        if (this.showCreditCardFields) {
            result['Last4'] = this.creditCardNumber ? this.creditCardNumber.slice(-4) : null;
            result['ExpiryMonth'] = this.expiryMonth;
            result['ExpiryYear'] = this.expiryYear;
            result['CCAuthCode__c'] = this.generateRandomString(16);
            result['NameOnCard__c'] = this.nameOnCard;
            result['Card_CVV__c'] = this.cvv;
            result['GatewayTransactionFee__c'] = 0.12345;
            result['GatewayReference__c'] = this.creditCardNumber;
        } else {
            result['Last4'] = null;
            result['ExpiryMonth'] = null;
            result['ExpiryYear'] = null;
            result['CCAuthCode__c'] = null;
            result['NameOnCard__c'] = null;
            result['Card_CVV__c'] = null;
            result['GatewayTransactionFee__c'] = null;
            result['GatewayReference__c'] = null;
        }
        return result;
    }

    // ------------------------------------------------------------
    // Everything below this is generic custom code to illustrate the component behavior
    // ------------------------------------------------------------
    _modalFields = [];
    _rowData = {};

    @track paymentMethod = CONSTANTS.CREDIT_CARD;
    @track creditCardNumber = '';
    @track nameOnCard = '';
    @track expiryMonth = '';
    @track expiryYear = '';
    @track cvv = '';
    @track gatewaytransactionfee = null;
    @track gatewayreference = null;
    @track chargeCardClicked = false;

    connectedCallback() {
        this.initializeFields();
    }

    initializeFields() {
        this.paymentMethod = this._rowData['PaymentMethod'] || '';
        this.creditCardNumber = (this._rowData['Last4'] ? "****-****-****-" + this._rowData['Last4'] : '');
        if (this._rowData['NameOnCard__c']) {
            this.nameOnCard = this._rowData['NameOnCard__c'];
        } else if (this._rowData['FirstName'] && this._rowData['LastName']) {
            this.nameOnCard = this._rowData['FirstName'] + ' ' + this._rowData['LastName'];
        } else {
            this.nameOnCard = '';
        }
        this.expiryMonth = this._rowData['ExpiryMonth'] || '';
        this.expiryYear = this._rowData['ExpiryYear'] || '';
        this.cvv = this._rowData['Card_CVV__c'] || '';
        this.gatewayTransactionFee = this._rowData['GatewayTransactionFee__c'] || null;
        this.gatewayReference = this._rowData['GatewayReference__c'] || null;
    }

    handleInputChange(event) {
        let fieldName = event?.target?.fieldName || event?.target?.name;
        if (fieldName) {
            fieldName = fieldName.charAt(0).toLowerCase() + fieldName.slice(1);
        }

        const fieldValue = event?.target?.value;
        this[fieldName] = fieldValue;
        if (fieldName === 'paymentMethod') {
            if (!this.showCreditCardFields) {
                this.creditCardNumber = '';
                this.nameOnCard = '';
                this.expiryMonth = '';
                this.expiryYear = '';
                this.cvv = '';
            }
        }
        if (fieldName === 'creditCardNumber') {
            this.validateCreditCardNumber();
        }
        if (fieldName === 'expiryMonth') {
            this.validateExpiryMonth();
        }
        if (fieldName === 'expiryYear') {
            this.validateExpiryYear();
        }
    }

    handleChargeCardClick() {
        this.chargeCardClicked = true;
    }

    canChargeCard() {
        if (this.chargeCardClicked) return false;
        if (!this.showCreditCardFields) return false;
        return (
            !!this.creditCardNumber && this.validateCreditCardNumber() &&
            !!this.nameOnCard &&
            !!this.expiryMonth && this.validateExpiryMonth() &&
            !!this.expiryYear && this.validateExpiryYear() &&
            !!this.cvv && this.validateCVV()
        );
    }

    validateCreditCardNumber() {
        const regex = /^(?:\d{4}[-\s]?\d{4}[-\s]?\d{4}[-\s]?\d{4}|\d{3}[-\s]?\d{6}[-\s]?\d{5}|\d{16}|\d{15})$/;
        return this.creditCardNumber === '' || regex.test(this.creditCardNumber);
    }

    validateExpiryMonth() {
        const month = parseInt(this.expiryMonth, 10);
        return this.expiryMonth === '' || (month >= 1 && month <= 12);
    }

    validateExpiryYear() {
        let year = parseInt(this.expiryYear, 10);
        year = year < 99 ? 2000 + year : year;
        const currentYear = new Date().getFullYear();
        return this.expiryYear === '' || (year >= currentYear && year <= currentYear + 10);
    }

    validateCVV() {
        return this.cvv === '' || /^\d{2}|\d{4}/.test(this.cvv);
    }

    generateRandomString(length) {
        const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
        let result = '';
        for (let i = 0; i < length; i++) {
            result += chars.charAt(Math.floor(Math.random() * chars.length));
        }
        return result;
    }

    get showCreditCardFields() {
        return this.paymentMethod === CONSTANTS.CREDIT_CARD || this.paymentMethod === CONSTANTS.ACH;
    }

    get minExpiryYear() {
        return new Date().getFullYear();
    }

    get maxExpiryYear() {
        return new Date().getFullYear() + 10;
    }

    get isChargeCardDisabled() {
        return !this.canChargeCard();
    }
}