How to submit radio button value + additional info about the form to Redux - forms

Question

This is a bit longwinded so I'll do my best to explain clearly.
I'm making a simple poll app and on the home page is an array of polls where you can vote on each poll.
Each poll is on a card and there will be different radio buttons representing the different voting options for that poll.
I'm trying to set up a form for each poll which contains radio button inputs for each of the different options and push that onSubmit to an action creator.
However, I would also like to pass that title of the poll as well as an argument to the action creator so that I can create a single action creator that will help me submit the votes for all the polls. Something like submitVote(title, option).
Here is my polls page:
import React, { Component } from 'react';
import { connect } from 'react-redux';
import * as actions from '../../actions';
import Loading from '../Loading';
class MyPolls extends Component {
constructor(props) {
super(props);
this.state = {
skip: 0,
isLoading: true,
isLoadingMore: false,
value: ''
};
this.handleSubmit = this.handleSubmit.bind(this);
this.handleChange = this.handleChange.bind(this);
}
componentDidMount() {
this.props.fetchMyPolls(this.state.skip)
.then(() => {
setTimeout(() => {
this.setState({
skip: this.state.skip + 4,
isLoading: false
});
}, 1000);
});
}
sumVotes(acc, cur) {
return acc.votes + cur.votes
}
loadMore(skip) {
this.setState({ isLoadingMore: true });
setTimeout(() => {
this.props.fetchMyPolls(skip)
.then(() => {
const nextSkip = this.state.skip + 4;
this.setState({
skip: nextSkip,
isLoadingMore: false
});
});
}, 1000);
}
handleSubmit(e) {
e.preventDefault();
}
handleChange(event) {
console.log(event.target.value);
this.setState({ value: event.target.value });
}
renderPolls() {
return this.props.polls.map(poll => {
return (
<div className='card' key={poll._id} style={{ width: '350px', height: '400px' }}>
<div className='card-content'>
<span className='card-title'>{poll.title}</span>
<p>Total votes: {poll.options.reduce((acc, cur) => { return acc + cur.votes }, 0)}</p>
<form onSubmit={this.handleSubmit}>
{poll.options.map(option => {
return (
<p key={option._id}>
<input
name={poll.title}
className='with-gap'
type='radio'
id={option._id}
value={option.option}
onChange={this.handleChange}
/>
<label htmlFor={option._id}>
{option.option}
</label>
</p>
)
})}
<button
type='text'
className='activator teal btn waves-effect waves-light'
style={{
position: 'absolute',
bottom: '10%',
transform: 'translateX(-50%)'
}}
>
Submit
<i className='material-icons right'>
send
</i>
</button>
</form>
</div>
<div className='card-reveal'>
<span className='card-title'>{poll.title}
<i className='material-icons right'>close</i>
</span>
<p>
dsfasfasdf
</p>
</div>
</div>
)
})
}
render() {
return (
<div className='center-align container'>
<h2>My Polls</h2>
{this.state.isLoading ? <Loading size='big' /> :
<div style={{ display: 'flex', flexWrap: 'wrap', justifyContent: 'space-evenly', alignItems: 'center', alignContent: 'center' }}>
{this.renderPolls()}
</div>}
<div className='row'>
{this.state.isLoadingMore ? <Loading size='small' /> :
<button
className='btn red lighten-2 wave-effect waves-light' onClick={() => this.loadMore(this.state.skip)}>
Load More
</button>}
</div>
</div>
);
}
}
function mapStateToProps({ polls }) {
return { polls }
}
export default connect(mapStateToProps, actions)(MyPolls);
Demo of the app so far: https://voting-app-drhectapus.herokuapp.com/
(use riverfish#gmail.com and password 123 to login).
Github repo: https://github.com/drhectapus/Voting-App
I'd like to program it so that when form is submitted via this.handleSubmit, the handleSubmit function can take 2 arguments, title and option and pass that onto an action creator in redux.
How do I do this?

Answer 1

It's a little difficult to understand everything going on here, but I get the sense that your main goal is to pass two args to this.handleSubmit. You may instead consider just passing poll.title and grabbing the selected option from state. Try something like this:
this.handleSubmit(title) {
// this.state.value should already have the selected option!
let obj = {
title,
option: this.state.value
};
// dispatch the object to redux, update your reducer, etc.
}
And in your render, be sure to bind poll.title as the argument:
render() {
...
<form onSubmit={this.handleSubmit.bind(this, poll.title)}>
}
Does that help at all? Let me know if I'm totally missing the mark on what you intend. With .bind() you pass the this context to use followed by a list of common separated args, so you could pass multiple args, but it's much easier to just grab option from state in this case.
Edit
If you want to access the SyntheticEvent that gets fired on submit, you simple specify it as the second argument to this.handleSubmit like so:
this.handleSubmit(title, event) {
// prevent form submit
event.preventDefault();
}
// this is the exact same as above, no need to pass event
render() {
...
<form onSubmit={this.handleSubmit.bind(this, poll.title)}>
}
In React, synthetic events are always passed as the last argument to a bound function and simply need to be specified to be in the method definition (no need to specify in render). This is Function.prototype.bind way of working with functions and events in React. Here are the supporting docs: https://reactjs.org/docs/handling-events.html#passing-arguments-to-event-handlers