Vulcan/packages/vulcan-forms/lib/Form.jsx

628 lines
21 KiB
JavaScript

/*
Main form component.
This component expects:
### All Forms:
- collection
- currentUser
- client (Apollo client)
### New Form:
- newMutation
### Edit Form:
- editMutation
- removeMutation
- document
*/
import { Components, Utils, runCallbacks } from 'meteor/vulcan:core';
import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { FormattedMessage, intlShape } from 'meteor/vulcan:i18n';
import Formsy from 'formsy-react';
import Button from 'react-bootstrap/lib/Button';
import Flash from "./Flash.jsx";
import FormGroup from "./FormGroup.jsx";
import { flatten, deepValue, getEditableFields, getInsertableFields } from './utils.js';
/*
1. Constructor
2. Helpers
3. Errors
4. Context
4. Method & Callback
5. Render
*/
class Form extends Component {
// --------------------------------------------------------------------- //
// ----------------------------- Constructor --------------------------- //
// --------------------------------------------------------------------- //
constructor(props) {
super(props);
this.submitForm = this.submitForm.bind(this);
this.updateState = this.updateState.bind(this);
// this.methodCallback = this.methodCallback.bind(this);
this.newMutationSuccessCallback = this.newMutationSuccessCallback.bind(this);
this.editMutationSuccessCallback = this.editMutationSuccessCallback.bind(this);
this.mutationSuccessCallback = this.mutationSuccessCallback.bind(this);
this.mutationErrorCallback = this.mutationErrorCallback.bind(this);
this.addToAutofilledValues = this.addToAutofilledValues.bind(this);
this.addToDeletedValues = this.addToDeletedValues.bind(this);
this.addToSubmitForm = this.addToSubmitForm.bind(this);
this.addToSuccessForm = this.addToSuccessForm.bind(this);
this.addToFailureForm = this.addToFailureForm.bind(this);
this.throwError = this.throwError.bind(this);
this.clearForm = this.clearForm.bind(this);
this.updateCurrentValues = this.updateCurrentValues.bind(this);
this.formKeyDown = this.formKeyDown.bind(this);
this.deleteDocument = this.deleteDocument.bind(this);
this.getDocument = this.getDocument.bind(this);
// a debounced version of seState that only updates state every 500 ms (not used)
this.debouncedSetState = _.debounce(this.setState, 500);
this.setFormState = this.setFormState.bind(this);
this.state = {
disabled: false,
errors: [],
autofilledValues: props.prefilledProps || {},
deletedValues: [],
currentValues: {}
};
this.submitFormCallbacks = [];
this.successFormCallbacks = [];
this.failureFormCallbacks = [];
}
// --------------------------------------------------------------------- //
// ------------------------------- Helpers ----------------------------- //
// --------------------------------------------------------------------- //
// return the current schema based on either the schema or collection prop
getSchema() {
return this.props.schema ? this.props.schema : Utils.stripTelescopeNamespace(this.props.collection.simpleSchema()._schema);
}
getFieldGroups() {
const schema = this.getSchema();
// build fields array by iterating over the list of field names
let fields = this.getFieldNames().map(fieldName => {
// get schema for the current field
const fieldSchema = schema[fieldName];
fieldSchema.name = fieldName;
// intialize properties
let field = {
name: fieldName,
datatype: fieldSchema.type,
control: fieldSchema.control,
layout: this.props.layout,
order: fieldSchema.order
}
// hide or show the field, a function taking form props as argument & returning a boolean can be used
field.hidden = (typeof fieldSchema.hidden === 'function') ? !!fieldSchema.hidden.call(fieldSchema, this.props) : fieldSchema.hidden;
// add label or internationalized field name if necessary (field not hidden)
if (!field.hidden) {
field.label = this.context.intl.formatMessage({id: this.props.collection._name+"."+fieldName, defaultMessage: fieldSchema.label});
}
// add value
field.value = this.getDocument() && deepValue(this.getDocument(), fieldName) ? deepValue(this.getDocument(), fieldName) : "";
// convert value type if needed
if (fieldSchema.type.definitions[0].type === Number) field.value = Number(field.value);
// if value is an array of objects ({_id: '123'}, {_id: 'abc'}), flatten it into an array of strings (['123', 'abc'])
// fallback to item itself if item._id is not defined (ex: item is not an object or item is just {slug: 'xxx'})
if (Array.isArray(field.value)) {
field.value = field.value.map(item => item._id || item);
}
// backward compatibility from 'autoform' to 'form'
if (fieldSchema.autoform) {
fieldSchema.form = fieldSchema.autoform;
console.warn(`Vulcan Warning: The 'autoform' field is deprecated. You should rename it to 'form' instead. It was defined on your '${fieldName}' field on the '${this.props.collection._name}' collection`); // eslint-disable-line
}
// replace value by prefilled value if value is empty
if (fieldSchema.form && fieldSchema.form.prefill) {
const prefilledValue = typeof fieldSchema.form.prefill === "function" ? fieldSchema.form.prefill.call(fieldSchema) : fieldSchema.form.prefill;
if (!!prefilledValue && !field.value) {
field.prefilledValue = prefilledValue;
field.value = prefilledValue;
}
}
// replace empty value, which has not been prefilled, by the default value from the schema
if (fieldSchema.defaultValue && field.value === "") {
field.value = fieldSchema.defaultValue;
}
// add options if they exist
if (fieldSchema.form && fieldSchema.form.options) {
field.options = typeof fieldSchema.form.options === "function" ? fieldSchema.form.options.call(fieldSchema, this.props) : fieldSchema.form.options;
}
if (fieldSchema.form && fieldSchema.form.disabled) {
field.disabled = typeof fieldSchema.form.disabled === "function" ? fieldSchema.form.disabled.call(fieldSchema) : fieldSchema.form.disabled;
}
if (fieldSchema.form && fieldSchema.form.help) {
field.help = typeof fieldSchema.form.help === "function" ? fieldSchema.form.help.call(fieldSchema) : fieldSchema.form.help;
}
// add limit
if (fieldSchema.limit) {
field.limit = fieldSchema.limit;
}
// add placeholder
if (fieldSchema.placeholder) {
field.placeholder = fieldSchema.placeholder;
}
if (fieldSchema.beforeComponent) field.beforeComponent = fieldSchema.beforeComponent;
if (fieldSchema.afterComponent) field.afterComponent = fieldSchema.afterComponent;
// add group
if (fieldSchema.group) {
field.group = fieldSchema.group;
}
// add document
field.document = this.getDocument();
return field;
});
// remove fields where hidden is set to true
fields = _.reject(fields, field => field.hidden);
fields = _.sortBy(fields, "order");
// get list of all unique groups (based on their name) used in current fields
let groups = _.compact(_.unique(_.pluck(fields, "group"), false, g => g && g.name));
// for each group, add relevant fields
groups = groups.map(group => {
group.label = group.label || this.context.intl.formatMessage({id: group.name});
group.fields = _.filter(fields, field => {return field.group && field.group.name === group.name});
return group;
});
// add default group
groups = [{
name: "default",
label: "default",
order: 0,
fields: _.filter(fields, field => {return !field.group;})
}].concat(groups);
// sort by order
groups = _.sortBy(groups, "order");
// console.log(groups);
return groups;
}
// if a document is being passed, this is an edit form
getFormType() {
return this.props.document ? "edit" : "new";
}
// get relevant fields
getFieldNames() {
const fields = this.props.fields;
// get all editable/insertable fields (depending on current form type)
let relevantFields = this.getFormType() === "edit" ? getEditableFields(this.getSchema(), this.props.currentUser, this.getDocument()) : getInsertableFields(this.getSchema(), this.props.currentUser);
// if "fields" prop is specified, restrict list of fields to it
if (typeof fields !== "undefined" && fields.length > 0) {
relevantFields = _.intersection(relevantFields, fields);
}
return relevantFields;
}
// for each field, we apply the following logic:
// - if its value is currently being inputted, use that
// - else if its value is provided by the autofilledValues object, use that
// - else if its value was provided by the db, use that (i.e. props.document)
getDocument() {
const currentDocument = _.clone(this.props.document) || {};
const document = Object.assign(currentDocument, _.clone(this.state.autofilledValues), _.clone(this.state.currentValues));
return document;
}
// NOTE: this is not called anymore since we're updating on blur, not on change
// whenever the form changes, update its state
updateState(e) {
// e can sometimes be event, sometims be currentValue
// see https://github.com/christianalfoni/formsy-react/issues/203
if (e.stopPropagation) {
e.stopPropagation();
} else {
// get rid of empty fields
_.forEach(e, (value, key) => {
if (_.isEmpty(value)) {
delete e[key];
}
});
this.setState(prevState => ({
currentValues: e
}));
}
}
// manually update the current values of one or more fields(i.e. on blur). See above for on change instead
updateCurrentValues(newValues) {
// keep the previous ones and extend (with possible replacement) with new ones
this.setState(prevState => ({
currentValues: {
...prevState.currentValues,
...newValues,
}
}));
}
// key down handler
formKeyDown(event) {
if( (event.ctrlKey || event.metaKey) && event.keyCode === 13) {
this.submitForm(this.refs.form.getModel());
}
}
// --------------------------------------------------------------------- //
// ------------------------------- Errors ------------------------------ //
// --------------------------------------------------------------------- //
// clear and re-enable the form
// by default, clear errors and keep current values
clearForm({ clearErrors = true, clearCurrentValues = false}) {
this.setState(prevState => ({
errors: clearErrors ? [] : prevState.errors,
currentValues: clearCurrentValues ? {} : prevState.currentValues,
disabled: false,
}));
}
// render errors
renderErrors() {
return (
<div className="form-errors">
{this.state.errors.map((error, index) =>
<Flash key={index} message={{content: error.message || this.context.intl.formatMessage({id: error.name}, error.data), type: 'error' }}/>
)}
</div>
)
}
// --------------------------------------------------------------------- //
// ------------------------------- Context ----------------------------- //
// --------------------------------------------------------------------- //
// add error to form state
// from "GraphQL Error: You have an error [error_code]"
// to { content: "You have an error", type: "error" }
throwError(error) {
// get graphQL error (see https://github.com/thebigredgeek/apollo-errors/issues/12)
const graphQLError = error.graphQLErrors[0];
// add error to state
this.setState(prevState => ({
errors: [...prevState.errors, graphQLError]
}));
}
// add something to autofilled values
addToAutofilledValues(property) {
this.setState(prevState => ({
autofilledValues: {
...prevState.autofilledValues,
...property
}
}));
}
// add something to deleted values
addToDeletedValues(name) {
this.setState(prevState => ({
deletedValues: [...prevState.deletedValues, name]
}));
}
// add a callback to the form submission
addToSubmitForm(callback) {
this.submitFormCallbacks.push(callback);
}
// add a callback to form submission success
addToSuccessForm(callback) {
this.successFormCallbacks.push(callback);
}
// add a callback to form submission failure
addToFailureForm(callback) {
this.failureFormCallbacks.push(callback);
}
setFormState(fn) {
this.setState(fn);
}
// pass on context to all child components
getChildContext() {
return {
throwError: this.throwError,
clearForm: this.clearForm,
autofilledValues: this.state.autofilledValues,
addToAutofilledValues: this.addToAutofilledValues,
addToDeletedValues: this.addToDeletedValues,
updateCurrentValues: this.updateCurrentValues,
getDocument: this.getDocument,
setFormState: this.setFormState,
addToSubmitForm: this.addToSubmitForm,
addToSuccessForm: this.addToSuccessForm,
addToFailureForm: this.addToFailureForm,
};
}
// --------------------------------------------------------------------- //
// ------------------------------- Method ------------------------------ //
// --------------------------------------------------------------------- //
newMutationSuccessCallback(result) {
this.mutationSuccessCallback(result, 'new');
}
editMutationSuccessCallback(result) {
this.mutationSuccessCallback(result, 'edit');
}
mutationSuccessCallback(result, mutationType) {
const document = result.data[Object.keys(result.data)[0]]; // document is always on first property
// for new mutation, run refetch function if it exists
if (mutationType === 'new' && this.props.refetch) this.props.refetch();
// call the clear form method (i.e. trigger setState) only if the form has not been unmounted (we are in an async callback, everything can happen!)
if (typeof this.refs.form !== 'undefined') {
let clearCurrentValues = false;
// reset form if this is a new document form
if (this.props.formType === "new") {
this.refs.form.reset();
clearCurrentValues = true;
}
this.clearForm({clearErrors: true, clearCurrentValues});
}
// run document through mutation success callbacks
result = runCallbacks(this.successFormCallbacks, result);
// run success callback if it exists
if (this.props.successCallback) this.props.successCallback(document);
}
// catch graphql errors
mutationErrorCallback(error) {
this.setState(prevState => ({disabled: false}));
console.log("// graphQL Error"); // eslint-disable-line no-console
console.log(error); // eslint-disable-line no-console
// run mutation failure callbacks on error, we do not allow the callbacks to change the error
runCallbacks(this.failureFormCallbacks, error);
if (!_.isEmpty(error)) {
// add error to state
this.throwError(error);
}
// note: we don't have access to the document here :( maybe use redux-forms and get it from the store?
// run error callback if it exists
// if (this.props.errorCallback) this.props.errorCallback(document, error);
}
// submit form handler
submitForm(data) {
// if form is disabled (there is already a submit handler running) don't do anything
if (this.state.disabled) {
return;
}
this.setState(prevState => ({disabled: true}));
// complete the data with values from custom components which are not being catched by Formsy mixin
// note: it follows the same logic as SmartForm's getDocument method
data = {
...this.state.autofilledValues, // ex: can be values from NewsletterSubscribe component
...data, // original data generated thanks to Formsy
...this.state.currentValues, // ex: can be values from DateTime component
};
// run data object through submitForm callbacks
data = runCallbacks(this.submitFormCallbacks, data);
const fields = this.getFieldNames();
// if there's a submit callback, run it
if (this.props.submitCallback) {
data = this.props.submitCallback(data);
}
if (this.props.formType === "new") { // new document form
// remove any empty properties
let document = _.compactObject(data);
// call method with new document
this.props.newMutation({document}).then(this.newMutationSuccessCallback).catch(this.mutationErrorCallback);
} else { // edit document form
const document = this.getDocument();
// put all keys with data on $set
const set = _.compactObject(data);
// put all keys without data on $unset
const setKeys = _.keys(set);
let unsetKeys = _.difference(fields, setKeys);
// add all keys to delete (minus those that have data associated)
unsetKeys = _.unique(unsetKeys.concat(_.difference(this.state.deletedValues, setKeys)));
// build mutation arguments object
const args = {documentId: document._id, set: set, unset: {}};
if (unsetKeys.length > 0) {
args.unset = _.object(unsetKeys, unsetKeys.map(() => true));
}
// call method with _id of document being edited and modifier
this.props.editMutation(args).then(this.editMutationSuccessCallback).catch(this.mutationErrorCallback);
}
}
deleteDocument() {
const document = this.getDocument();
const documentId = this.props.document._id;
const documentTitle = document.title || document.name || '';
const deleteDocumentConfirm = this.context.intl.formatMessage({id: 'forms.delete_confirm'}, {title: documentTitle});
if (window.confirm(deleteDocumentConfirm)) {
this.props.removeMutation({documentId})
.then((mutationResult) => { // the mutation result looks like {data:{collectionRemove: null}} if succeeded
if (this.props.removeSuccessCallback) this.props.removeSuccessCallback({documentId, documentTitle});
if (this.props.refetch) this.props.refetch();
})
.catch((error) => {
console.log(error);
});
}
}
// --------------------------------------------------------------------- //
// ------------------------- Lifecycle Hooks --------------------------- //
// --------------------------------------------------------------------- //
render() {
const fieldGroups = this.getFieldGroups();
const collectionName = this.props.collection._name;
return (
<div className={"document-"+this.props.formType}>
<Formsy.Form
onSubmit={this.submitForm}
onKeyDown={this.formKeyDown}
disabled={this.state.disabled}
ref="form"
>
{this.renderErrors()}
{fieldGroups.map(group => <FormGroup key={group.name} {...group} updateCurrentValues={this.updateCurrentValues} />)}
<div className="form-submit">
<Button type="submit" bsStyle="primary">{this.props.submitLabel ? this.props.submitLabel : <FormattedMessage id="forms.submit"/>}</Button>
{this.props.cancelCallback ? <a className="form-cancel" onClick={this.props.cancelCallback}>{this.props.cancelLabel ? this.props.cancelLabel : <FormattedMessage id="forms.cancel"/>}</a> : null}
</div>
</Formsy.Form>
{
this.props.formType === 'edit' && this.props.showRemove
? <div>
<hr/>
<a onClick={this.deleteDocument} className={`${collectionName}-delete-link`}>
<Components.Icon name="close"/> <FormattedMessage id="forms.delete"/>
</a>
</div>
: null
}
</div>
)
}
}
Form.propTypes = {
// main options
collection: PropTypes.object,
document: PropTypes.object, // if a document is passed, this will be an edit form
schema: PropTypes.object, // usually not needed
// graphQL
newMutation: PropTypes.func, // the new mutation
editMutation: PropTypes.func, // the edit mutation
removeMutation: PropTypes.func, // the remove mutation
// form
prefilledProps: PropTypes.object,
layout: PropTypes.string,
fields: PropTypes.arrayOf(PropTypes.string),
showRemove: PropTypes.bool,
submitLabel: PropTypes.string,
cancelLabel: PropTypes.string,
// callbacks
submitCallback: PropTypes.func,
successCallback: PropTypes.func,
removeSuccessCallback: PropTypes.func,
errorCallback: PropTypes.func,
cancelCallback: PropTypes.func,
currentUser: PropTypes.object,
client: PropTypes.object,
}
Form.defaultProps = {
layout: "horizontal",
}
Form.contextTypes = {
intl: intlShape
}
Form.childContextTypes = {
autofilledValues: PropTypes.object,
addToAutofilledValues: PropTypes.func,
addToDeletedValues: PropTypes.func,
addToSubmitForm: PropTypes.func,
addToFailureForm: PropTypes.func,
addToSuccessForm: PropTypes.func,
updateCurrentValues: PropTypes.func,
setFormState: PropTypes.func,
throwError: PropTypes.func,
clearForm: PropTypes.func,
getDocument: PropTypes.func
}
module.exports = Form