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import React, { Component } from 'react'
import { graphql, gql } from 'react-apollo'
import { ALL_ITEMS_QUERY, CREATE_LINK_MUTATION } from '../queries';
class CreateLink extends Component {
state = {
description: '',
title: '',
image: '',
loading: false
}
componentWillReceiveProps(nextProps) {
console.log(nextProps);
}
uploadFile = async (e) => {
const files = e.currentTarget.files;
let data = new FormData();
data.append('data', files[0]);
// use the file endpoint
const res = await fetch('https://api.graph.cool/file/v1/cj5xz8szs28930145gct82bdj', {
method: 'POST',
body: data
});
const file = await res.json();
console.log(file);
this.setState({ image: file.id });
}
render() {
return (
<div>
{ this.state.loading ? 'LOADING...' : 'Ready!' }
<form onSubmit={this._createLink}>
<p>
Image
<input onChange={this.uploadFile} type='file'/>
</p>
<p>Title
<input value={this.state.title} onChange={(e) => this.setState({ title: e.target.value })} type='text' placeholder='A description for the link'/>
</p>
<textarea
value={this.state.description}
onChange={(e) => this.setState({ description: e.target.value })}
type='text'
placeholder='The desc for this item'
></textarea>
<button type="submit">Submit</button>
</form>
</div>
)
}
_createLink = async (e) => {
e.preventDefault();
// pull the values from state
const { description, title, image } = this.state
// create a mutation
// TODO: handle any errors
// turn loading on
this.setState({ loading: true });
const res = await this.props.createLinkMutation({
// pass in those variables from state
variables: {
description,
title,
imageId: image
}
});
this.setState({ loading: false });
}
}
// When we submit this mutation, we need to update our store - we have a few ways to do that:
// One - we can go nucular and run refetchQueries() which will just go get everything - this is easy, but at the cost of efficiency.
export default graphql(CREATE_LINK_MUTATION, { name: 'createLinkMutation', options: {
// Easy, but slow
// refetchQueries: ['AllLinksQuery']
// This is much Better / efficient
// Notice how the variable is called createItem - that is because createItem is the name of the query!
update: (proxy, { data: { createItem } }) => {
console.log({createItem, ALL_ITEMS_QUERY});
const data = proxy.readQuery({ query: ALL_ITEMS_QUERY });
// data is our store, allItems is our sub-"state", it's just an array. We can just add it to
data.allItems.unshift(createItem);
// and then "set state", so it will update on the page. This will update the cache for us!
proxy.writeQuery({ query: ALL_ITEMS_QUERY, data });
},
} })(CreateLink)
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