Update value in object in nested array in React Firestore












1















I need to update value field in object at specific index which is in array in Firebase



I tried to grab through getState() array with all objects;

then get object index which I need;

then assign new value to object, in this case content;

then rewrite whole array (comments) to newArray (actualComments) as you can see below.



And this works how I want, but only for the first time. If I try to do it again, I get error TypeError: "content" is read-only.



    export const editComment = (comment) => {
return (dispatch, getState, { getFirebase, getFirestore }) => {
const firestore = getFirestore();

let actualComments = getState().firestore.data.topics[comment.topicId].comments;
let numberArray = actualComments.findIndex(e => {return e.id === comment.commentId});
actualComments[numberArray].content = comment.editContent;

firestore.collection('topics').doc(comment.topicId).update({
comments: actualComments
}).then(() => {
dispatch({ type: 'EDIT_COMMENT' })
}).catch((error) => {
dispatch({ type: 'EDIT_COMMENT_ERROR', error})
})
}
}









share|improve this question




















  • 1





    If your are using redux as your state manager, your state is supposed to be immutable, it appears weird to me that it doesn't complain on the first time. Have you tried updating your data through a reducer ?

    – Kevin Coulibaly
    Jan 2 at 0:09











  • i trying update value of one object inside firestorm database in async action (thunk) before reducer. Each 'comment' data which i render dynamicly to DOM from database is inside object in array,

    – Fhranis Holdt
    Jan 2 at 9:38
















1















I need to update value field in object at specific index which is in array in Firebase



I tried to grab through getState() array with all objects;

then get object index which I need;

then assign new value to object, in this case content;

then rewrite whole array (comments) to newArray (actualComments) as you can see below.



And this works how I want, but only for the first time. If I try to do it again, I get error TypeError: "content" is read-only.



    export const editComment = (comment) => {
return (dispatch, getState, { getFirebase, getFirestore }) => {
const firestore = getFirestore();

let actualComments = getState().firestore.data.topics[comment.topicId].comments;
let numberArray = actualComments.findIndex(e => {return e.id === comment.commentId});
actualComments[numberArray].content = comment.editContent;

firestore.collection('topics').doc(comment.topicId).update({
comments: actualComments
}).then(() => {
dispatch({ type: 'EDIT_COMMENT' })
}).catch((error) => {
dispatch({ type: 'EDIT_COMMENT_ERROR', error})
})
}
}









share|improve this question




















  • 1





    If your are using redux as your state manager, your state is supposed to be immutable, it appears weird to me that it doesn't complain on the first time. Have you tried updating your data through a reducer ?

    – Kevin Coulibaly
    Jan 2 at 0:09











  • i trying update value of one object inside firestorm database in async action (thunk) before reducer. Each 'comment' data which i render dynamicly to DOM from database is inside object in array,

    – Fhranis Holdt
    Jan 2 at 9:38














1












1








1


1






I need to update value field in object at specific index which is in array in Firebase



I tried to grab through getState() array with all objects;

then get object index which I need;

then assign new value to object, in this case content;

then rewrite whole array (comments) to newArray (actualComments) as you can see below.



And this works how I want, but only for the first time. If I try to do it again, I get error TypeError: "content" is read-only.



    export const editComment = (comment) => {
return (dispatch, getState, { getFirebase, getFirestore }) => {
const firestore = getFirestore();

let actualComments = getState().firestore.data.topics[comment.topicId].comments;
let numberArray = actualComments.findIndex(e => {return e.id === comment.commentId});
actualComments[numberArray].content = comment.editContent;

firestore.collection('topics').doc(comment.topicId).update({
comments: actualComments
}).then(() => {
dispatch({ type: 'EDIT_COMMENT' })
}).catch((error) => {
dispatch({ type: 'EDIT_COMMENT_ERROR', error})
})
}
}









share|improve this question
















I need to update value field in object at specific index which is in array in Firebase



I tried to grab through getState() array with all objects;

then get object index which I need;

then assign new value to object, in this case content;

then rewrite whole array (comments) to newArray (actualComments) as you can see below.



And this works how I want, but only for the first time. If I try to do it again, I get error TypeError: "content" is read-only.



    export const editComment = (comment) => {
return (dispatch, getState, { getFirebase, getFirestore }) => {
const firestore = getFirestore();

let actualComments = getState().firestore.data.topics[comment.topicId].comments;
let numberArray = actualComments.findIndex(e => {return e.id === comment.commentId});
actualComments[numberArray].content = comment.editContent;

firestore.collection('topics').doc(comment.topicId).update({
comments: actualComments
}).then(() => {
dispatch({ type: 'EDIT_COMMENT' })
}).catch((error) => {
dispatch({ type: 'EDIT_COMMENT_ERROR', error})
})
}
}






javascript reactjs firebase redux google-cloud-firestore






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edited Jan 2 at 11:10









wanttobeprofessional

1,03131323




1,03131323










asked Jan 1 at 21:44









Fhranis HoldtFhranis Holdt

185




185








  • 1





    If your are using redux as your state manager, your state is supposed to be immutable, it appears weird to me that it doesn't complain on the first time. Have you tried updating your data through a reducer ?

    – Kevin Coulibaly
    Jan 2 at 0:09











  • i trying update value of one object inside firestorm database in async action (thunk) before reducer. Each 'comment' data which i render dynamicly to DOM from database is inside object in array,

    – Fhranis Holdt
    Jan 2 at 9:38














  • 1





    If your are using redux as your state manager, your state is supposed to be immutable, it appears weird to me that it doesn't complain on the first time. Have you tried updating your data through a reducer ?

    – Kevin Coulibaly
    Jan 2 at 0:09











  • i trying update value of one object inside firestorm database in async action (thunk) before reducer. Each 'comment' data which i render dynamicly to DOM from database is inside object in array,

    – Fhranis Holdt
    Jan 2 at 9:38








1




1





If your are using redux as your state manager, your state is supposed to be immutable, it appears weird to me that it doesn't complain on the first time. Have you tried updating your data through a reducer ?

– Kevin Coulibaly
Jan 2 at 0:09





If your are using redux as your state manager, your state is supposed to be immutable, it appears weird to me that it doesn't complain on the first time. Have you tried updating your data through a reducer ?

– Kevin Coulibaly
Jan 2 at 0:09













i trying update value of one object inside firestorm database in async action (thunk) before reducer. Each 'comment' data which i render dynamicly to DOM from database is inside object in array,

– Fhranis Holdt
Jan 2 at 9:38





i trying update value of one object inside firestorm database in async action (thunk) before reducer. Each 'comment' data which i render dynamicly to DOM from database is inside object in array,

– Fhranis Holdt
Jan 2 at 9:38












1 Answer
1






active

oldest

votes


















0














My friend helped me with this, and now my updates in object at specifix index in Array works! Here is code, cheers



    /////Grab through reference all comments Array in firestore
let actualComments = getState().firestore.data.topics[comment.topicId].comments;

////make container for array
let updatedComments = ;

//// copy array from reference to empty updatedComments array
actualComments.forEach(comment => {
updatedComments.push({
content: comment.content,
createdAt: comment.createdAt,
editDate: comment.editDate,
edited: comment.edited,
id: comment.id,
idTopic: comment.idTopic,
name: comment.name,
nameId: comment.nameId
})
})

//// grab index which i want to update
let numberArray = actualComments.findIndex(e => {return e.id === comment.commentId});

//// update in specific index array
updatedComments[numberArray].content = comment.editContent;
updatedComments[numberArray].editDate = new Date();
updatedComments[numberArray].edited = true;

//// replace updated array in firestore
firestore.collection('topics').doc(comment.topicId).update({

comments: updatedComments

}).then...





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    0














    My friend helped me with this, and now my updates in object at specifix index in Array works! Here is code, cheers



        /////Grab through reference all comments Array in firestore
    let actualComments = getState().firestore.data.topics[comment.topicId].comments;

    ////make container for array
    let updatedComments = ;

    //// copy array from reference to empty updatedComments array
    actualComments.forEach(comment => {
    updatedComments.push({
    content: comment.content,
    createdAt: comment.createdAt,
    editDate: comment.editDate,
    edited: comment.edited,
    id: comment.id,
    idTopic: comment.idTopic,
    name: comment.name,
    nameId: comment.nameId
    })
    })

    //// grab index which i want to update
    let numberArray = actualComments.findIndex(e => {return e.id === comment.commentId});

    //// update in specific index array
    updatedComments[numberArray].content = comment.editContent;
    updatedComments[numberArray].editDate = new Date();
    updatedComments[numberArray].edited = true;

    //// replace updated array in firestore
    firestore.collection('topics').doc(comment.topicId).update({

    comments: updatedComments

    }).then...





    share|improve this answer




























      0














      My friend helped me with this, and now my updates in object at specifix index in Array works! Here is code, cheers



          /////Grab through reference all comments Array in firestore
      let actualComments = getState().firestore.data.topics[comment.topicId].comments;

      ////make container for array
      let updatedComments = ;

      //// copy array from reference to empty updatedComments array
      actualComments.forEach(comment => {
      updatedComments.push({
      content: comment.content,
      createdAt: comment.createdAt,
      editDate: comment.editDate,
      edited: comment.edited,
      id: comment.id,
      idTopic: comment.idTopic,
      name: comment.name,
      nameId: comment.nameId
      })
      })

      //// grab index which i want to update
      let numberArray = actualComments.findIndex(e => {return e.id === comment.commentId});

      //// update in specific index array
      updatedComments[numberArray].content = comment.editContent;
      updatedComments[numberArray].editDate = new Date();
      updatedComments[numberArray].edited = true;

      //// replace updated array in firestore
      firestore.collection('topics').doc(comment.topicId).update({

      comments: updatedComments

      }).then...





      share|improve this answer


























        0












        0








        0







        My friend helped me with this, and now my updates in object at specifix index in Array works! Here is code, cheers



            /////Grab through reference all comments Array in firestore
        let actualComments = getState().firestore.data.topics[comment.topicId].comments;

        ////make container for array
        let updatedComments = ;

        //// copy array from reference to empty updatedComments array
        actualComments.forEach(comment => {
        updatedComments.push({
        content: comment.content,
        createdAt: comment.createdAt,
        editDate: comment.editDate,
        edited: comment.edited,
        id: comment.id,
        idTopic: comment.idTopic,
        name: comment.name,
        nameId: comment.nameId
        })
        })

        //// grab index which i want to update
        let numberArray = actualComments.findIndex(e => {return e.id === comment.commentId});

        //// update in specific index array
        updatedComments[numberArray].content = comment.editContent;
        updatedComments[numberArray].editDate = new Date();
        updatedComments[numberArray].edited = true;

        //// replace updated array in firestore
        firestore.collection('topics').doc(comment.topicId).update({

        comments: updatedComments

        }).then...





        share|improve this answer













        My friend helped me with this, and now my updates in object at specifix index in Array works! Here is code, cheers



            /////Grab through reference all comments Array in firestore
        let actualComments = getState().firestore.data.topics[comment.topicId].comments;

        ////make container for array
        let updatedComments = ;

        //// copy array from reference to empty updatedComments array
        actualComments.forEach(comment => {
        updatedComments.push({
        content: comment.content,
        createdAt: comment.createdAt,
        editDate: comment.editDate,
        edited: comment.edited,
        id: comment.id,
        idTopic: comment.idTopic,
        name: comment.name,
        nameId: comment.nameId
        })
        })

        //// grab index which i want to update
        let numberArray = actualComments.findIndex(e => {return e.id === comment.commentId});

        //// update in specific index array
        updatedComments[numberArray].content = comment.editContent;
        updatedComments[numberArray].editDate = new Date();
        updatedComments[numberArray].edited = true;

        //// replace updated array in firestore
        firestore.collection('topics').doc(comment.topicId).update({

        comments: updatedComments

        }).then...






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 4 at 13:25









        Fhranis HoldtFhranis Holdt

        185




        185
































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