React Context API - rerender component on context change without wrapping render in a consumer












0















I am using this.context to get context data inside the lifecycle methods, but when I am not wrapping component with Consumer, then when context data changes, my component is not getting rerendered.



So instead of this:



render() {
console.log('companies render');
const { modal, singleCompanyData, loading } = this.state;
const { itemsPerPage } = this.props;
const columns = [
{ key: 'id', title: 'ID' },
{ key: 'title', title: 'Title' },
{ key: 'city', title: 'City' },
{ key: 'btn', title: 'Action' }
];
return (
<SharedDataConsumer>
{({ companies }) => (
<React.Fragment>
<Companies
columns={columns}
data={companies}
addCompany={this.addCompany}
totalRecords={companies.length}
loading={loading}
itemsPerPage={itemsPerPage}
/>
<AM2Modal open={modal} handleModalClose={this.handleModalClose}>
<CompaniesEdit
singleCompanyData={singleCompanyData}
handleModalClose={this.handleModalClose}
inputChangeEvent={this.inputChangeEvent}
/>
</AM2Modal>
</React.Fragment>
)}
</SharedDataConsumer>
);
}


I need to use something like this, in order to format that data before render:



render() {
console.log('companies render');
const { modal, singleCompanyData, loading } = this.state;
const { companies } = this.context;
const { itemsPerPage } = this.props;
const newComp = companies.map(value => ({
...value,
btn: this.actionBtns(value.id)
}));
const columns = [
{ key: 'id', title: 'ID' },
{ key: 'title', title: 'Title' },
{ key: 'city', title: 'City' },
{ key: 'btn', title: 'Action' }
];
return (
<React.Fragment>
<Companies
columns={columns}
data={newComp}
addCompany={this.addCompany}
totalRecords={companies.length}
loading={loading}
itemsPerPage={itemsPerPage}
/>
<AM2Modal open={modal} handleModalClose={this.handleModalClose}>
<CompaniesEdit
singleCompanyData={singleCompanyData}
handleModalClose={this.handleModalClose}
inputChangeEvent={this.inputChangeEvent}
/>
</AM2Modal>
</React.Fragment>
);
}


But this way, component is not getting updated after context changes - context data is async.



I did research and saw this example where they wrap export and pass context data as props, but not sure if thats the correct way to go with latest context API?



Full code here.










share|improve this question

























  • what version of react do you use

    – Shubham Khatri
    Jan 4 at 10:37











  • I am using the latest version.

    – Goran Jakovljevic
    Jan 6 at 14:23
















0















I am using this.context to get context data inside the lifecycle methods, but when I am not wrapping component with Consumer, then when context data changes, my component is not getting rerendered.



So instead of this:



render() {
console.log('companies render');
const { modal, singleCompanyData, loading } = this.state;
const { itemsPerPage } = this.props;
const columns = [
{ key: 'id', title: 'ID' },
{ key: 'title', title: 'Title' },
{ key: 'city', title: 'City' },
{ key: 'btn', title: 'Action' }
];
return (
<SharedDataConsumer>
{({ companies }) => (
<React.Fragment>
<Companies
columns={columns}
data={companies}
addCompany={this.addCompany}
totalRecords={companies.length}
loading={loading}
itemsPerPage={itemsPerPage}
/>
<AM2Modal open={modal} handleModalClose={this.handleModalClose}>
<CompaniesEdit
singleCompanyData={singleCompanyData}
handleModalClose={this.handleModalClose}
inputChangeEvent={this.inputChangeEvent}
/>
</AM2Modal>
</React.Fragment>
)}
</SharedDataConsumer>
);
}


I need to use something like this, in order to format that data before render:



render() {
console.log('companies render');
const { modal, singleCompanyData, loading } = this.state;
const { companies } = this.context;
const { itemsPerPage } = this.props;
const newComp = companies.map(value => ({
...value,
btn: this.actionBtns(value.id)
}));
const columns = [
{ key: 'id', title: 'ID' },
{ key: 'title', title: 'Title' },
{ key: 'city', title: 'City' },
{ key: 'btn', title: 'Action' }
];
return (
<React.Fragment>
<Companies
columns={columns}
data={newComp}
addCompany={this.addCompany}
totalRecords={companies.length}
loading={loading}
itemsPerPage={itemsPerPage}
/>
<AM2Modal open={modal} handleModalClose={this.handleModalClose}>
<CompaniesEdit
singleCompanyData={singleCompanyData}
handleModalClose={this.handleModalClose}
inputChangeEvent={this.inputChangeEvent}
/>
</AM2Modal>
</React.Fragment>
);
}


But this way, component is not getting updated after context changes - context data is async.



I did research and saw this example where they wrap export and pass context data as props, but not sure if thats the correct way to go with latest context API?



Full code here.










share|improve this question

























  • what version of react do you use

    – Shubham Khatri
    Jan 4 at 10:37











  • I am using the latest version.

    – Goran Jakovljevic
    Jan 6 at 14:23














0












0








0








I am using this.context to get context data inside the lifecycle methods, but when I am not wrapping component with Consumer, then when context data changes, my component is not getting rerendered.



So instead of this:



render() {
console.log('companies render');
const { modal, singleCompanyData, loading } = this.state;
const { itemsPerPage } = this.props;
const columns = [
{ key: 'id', title: 'ID' },
{ key: 'title', title: 'Title' },
{ key: 'city', title: 'City' },
{ key: 'btn', title: 'Action' }
];
return (
<SharedDataConsumer>
{({ companies }) => (
<React.Fragment>
<Companies
columns={columns}
data={companies}
addCompany={this.addCompany}
totalRecords={companies.length}
loading={loading}
itemsPerPage={itemsPerPage}
/>
<AM2Modal open={modal} handleModalClose={this.handleModalClose}>
<CompaniesEdit
singleCompanyData={singleCompanyData}
handleModalClose={this.handleModalClose}
inputChangeEvent={this.inputChangeEvent}
/>
</AM2Modal>
</React.Fragment>
)}
</SharedDataConsumer>
);
}


I need to use something like this, in order to format that data before render:



render() {
console.log('companies render');
const { modal, singleCompanyData, loading } = this.state;
const { companies } = this.context;
const { itemsPerPage } = this.props;
const newComp = companies.map(value => ({
...value,
btn: this.actionBtns(value.id)
}));
const columns = [
{ key: 'id', title: 'ID' },
{ key: 'title', title: 'Title' },
{ key: 'city', title: 'City' },
{ key: 'btn', title: 'Action' }
];
return (
<React.Fragment>
<Companies
columns={columns}
data={newComp}
addCompany={this.addCompany}
totalRecords={companies.length}
loading={loading}
itemsPerPage={itemsPerPage}
/>
<AM2Modal open={modal} handleModalClose={this.handleModalClose}>
<CompaniesEdit
singleCompanyData={singleCompanyData}
handleModalClose={this.handleModalClose}
inputChangeEvent={this.inputChangeEvent}
/>
</AM2Modal>
</React.Fragment>
);
}


But this way, component is not getting updated after context changes - context data is async.



I did research and saw this example where they wrap export and pass context data as props, but not sure if thats the correct way to go with latest context API?



Full code here.










share|improve this question
















I am using this.context to get context data inside the lifecycle methods, but when I am not wrapping component with Consumer, then when context data changes, my component is not getting rerendered.



So instead of this:



render() {
console.log('companies render');
const { modal, singleCompanyData, loading } = this.state;
const { itemsPerPage } = this.props;
const columns = [
{ key: 'id', title: 'ID' },
{ key: 'title', title: 'Title' },
{ key: 'city', title: 'City' },
{ key: 'btn', title: 'Action' }
];
return (
<SharedDataConsumer>
{({ companies }) => (
<React.Fragment>
<Companies
columns={columns}
data={companies}
addCompany={this.addCompany}
totalRecords={companies.length}
loading={loading}
itemsPerPage={itemsPerPage}
/>
<AM2Modal open={modal} handleModalClose={this.handleModalClose}>
<CompaniesEdit
singleCompanyData={singleCompanyData}
handleModalClose={this.handleModalClose}
inputChangeEvent={this.inputChangeEvent}
/>
</AM2Modal>
</React.Fragment>
)}
</SharedDataConsumer>
);
}


I need to use something like this, in order to format that data before render:



render() {
console.log('companies render');
const { modal, singleCompanyData, loading } = this.state;
const { companies } = this.context;
const { itemsPerPage } = this.props;
const newComp = companies.map(value => ({
...value,
btn: this.actionBtns(value.id)
}));
const columns = [
{ key: 'id', title: 'ID' },
{ key: 'title', title: 'Title' },
{ key: 'city', title: 'City' },
{ key: 'btn', title: 'Action' }
];
return (
<React.Fragment>
<Companies
columns={columns}
data={newComp}
addCompany={this.addCompany}
totalRecords={companies.length}
loading={loading}
itemsPerPage={itemsPerPage}
/>
<AM2Modal open={modal} handleModalClose={this.handleModalClose}>
<CompaniesEdit
singleCompanyData={singleCompanyData}
handleModalClose={this.handleModalClose}
inputChangeEvent={this.inputChangeEvent}
/>
</AM2Modal>
</React.Fragment>
);
}


But this way, component is not getting updated after context changes - context data is async.



I did research and saw this example where they wrap export and pass context data as props, but not sure if thats the correct way to go with latest context API?



Full code here.







reactjs react-context






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 1 at 20:38







Goran Jakovljevic

















asked Jan 1 at 15:40









Goran JakovljevicGoran Jakovljevic

1,4911318




1,4911318













  • what version of react do you use

    – Shubham Khatri
    Jan 4 at 10:37











  • I am using the latest version.

    – Goran Jakovljevic
    Jan 6 at 14:23



















  • what version of react do you use

    – Shubham Khatri
    Jan 4 at 10:37











  • I am using the latest version.

    – Goran Jakovljevic
    Jan 6 at 14:23

















what version of react do you use

– Shubham Khatri
Jan 4 at 10:37





what version of react do you use

– Shubham Khatri
Jan 4 at 10:37













I am using the latest version.

– Goran Jakovljevic
Jan 6 at 14:23





I am using the latest version.

– Goran Jakovljevic
Jan 6 at 14:23












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