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|
// @flow
import CircularProgress from '@material-ui/core/CircularProgress'
import { withStyles } from '@material-ui/core/styles'
import Table from '@material-ui/core/Table/Table'
import TableBody from '@material-ui/core/TableBody/TableBody'
import TablePagination from '@material-ui/core/TablePagination/TablePagination'
import gql from 'graphql-tag'
import React from 'react'
import { Query } from 'react-apollo'
import BugSummary from './BugSummary'
const QUERY = gql`
query($first: Int = 10, $last: Int, $after: String, $before: String) {
defaultRepository {
bugs: allBugs(first: $first, last: $last, after: $after, before: $before) {
totalCount
edges {
cursor
node {
...BugSummary
}
}
pageInfo{
hasNextPage
hasPreviousPage
startCursor
endCursor
}
}
}
}
${BugSummary.fragment}
`
const styles = theme => ({
main: {
maxWidth: 600,
margin: 'auto',
marginTop: theme.spacing.unit * 4
}
})
const List = withStyles(styles)(class List extends React.Component {
props: {
bugs: Array,
fetchMore: (any) => any,
classes: any,
}
state = {
page: 0,
rowsPerPage: 10,
lastQuery: {}
}
handleChangePage = (event, page) => {
const {bugs, fetchMore} = this.props
const {rowsPerPage} = this.state
const pageInfo = bugs.pageInfo
if (page === this.state.page + 1) {
if (!pageInfo.hasNextPage) {
return
}
const variables = {
after: pageInfo.endCursor,
first: rowsPerPage
}
fetchMore({
variables,
updateQuery: this.updateQuery,
})
this.setState({page, lastQuery: variables})
return
}
if (page === this.state.page - 1) {
if (!pageInfo.hasPreviousPage) {
return
}
const variables = {
before: pageInfo.startCursor,
last: rowsPerPage
}
fetchMore({
variables,
updateQuery: this.updateQuery,
})
this.setState({page, lastQuery: variables})
return
}
throw 'non neighbour page pagination is not supported'
}
handleChangeRowsPerPage = event => {
const {fetchMore} = this.props
const {lastQuery} = this.state
const rowsPerPage = event.target.value
const variables = lastQuery
if (lastQuery.first) {
variables.first = rowsPerPage
} else if (lastQuery.last) {
variables.last = rowsPerPage
} else {
variables.first = rowsPerPage
}
fetchMore({
variables,
updateQuery: this.updateQuery,
})
this.setState({rowsPerPage, lastQuery: variables})
}
updateQuery = (previousResult, {fetchMoreResult}) => {
console.log(fetchMoreResult)
return fetchMoreResult ? fetchMoreResult : previousResult
}
render() {
const {classes, bugs} = this.props
const {page, rowsPerPage} = this.state
return (
<main className={classes.main}>
<Table className={classes.table}>
<TableBody>
{bugs.edges.map(({cursor, node}) => (
<BugSummary bug={node} key={cursor}/>
))}
</TableBody>
</Table>
<TablePagination
component="div"
count={bugs.totalCount}
rowsPerPage={rowsPerPage}
page={page}
backIconButtonProps={{
'aria-label': 'Previous Page'
}}
nextIconButtonProps={{
'aria-label': 'Next Page'
}}
onChangePage={this.handleChangePage}
onChangeRowsPerPage={this.handleChangeRowsPerPage}
/>
</main>
)
}
})
const ListPage = () => (
<Query query={QUERY}>
{({loading, error, data, fetchMore}) => {
if (loading) return <CircularProgress/>
if (error) return <p>Error.</p>
return <List bugs={data.defaultRepository.bugs} fetchMore={fetchMore}/>
}}
</Query>
)
export default ListPage
|
