why watch cannot work after edit an object?










0















I have an array in Vuejs.



overtime_rates: ;


This array comes from the parent to this page. I sent it through v-model="overtime.overtime_rates" , and take it in the child as:



props: 

value: Array,

,
computed:
overtime_rates:
get()
return this.value;
,
set(value)
this.$emit('input', value);

,
,


In my method when the array is empty (in create mode) and i try to push the object into it, the watch works fine and can capture all changes for any new push.



let rateOT = 
startTime:
hours: 0,
minutes: 0,
,
endTime:
hours: 23,
minutes: 59,
,

this.overtime_rates.push(rateOT);


But after i save the array in database and fetch it for edit, when i try to edit each record the watch cannot catch the changes.



The function which is called in watch is :



method: 
autoTime()
for (let i = 1; i < this.overtime_rates.length; i++)

if (this.overtime_rates[i - 1].endTime.minutes >= 0
&& this.overtime_rates[i - 1].endTime.minutes < 59)
this.overtime_rates[i].startTime.minutes =
parseInt(this.overtime_rates[i - 1].endTime.minutes) + 1;
this.overtime_rates[i].startTime.hours =
parseInt(this.overtime_rates[i -
1].endTime.hours);

else if (this.overtime_rates[i - 1].endTime.minutes == 59)
this.overtime_rates[i].startTime.minutes = 0;
this.overtime_rates[i].startTime.hours = parseInt(this.overtime_rates[i - 1].endTime.hours) + 1;



,



The watch code is as follow:



watch: {
value:
handler: function ()

this.autoTime();


,
deep: true
,


Pleas any one can help me?










share|improve this question
























  • you have to re-watch it after db fetch as it is a new instance and watch was for the previous instance

    – Nikos M.
    Nov 15 '18 at 9:29











  • @NikosM. thank you so much , may i ask you how can i do rewatch? I edited and added my watch code in the question.

    – Sara
    Nov 15 '18 at 9:53











  • hmm i'm afraid I cannot get how you watch the object it is not clear from the code you posted, do you use a polyfill? where exactly does this code reside? what is this.autoTime()? these are missing, I can help better if I know that

    – Nikos M.
    Nov 15 '18 at 9:58











  • Thanks @NikosM. i just afraid that if i put whole code it becomes confusing , i edited again and include the additional code

    – Sara
    Nov 16 '18 at 1:19











  • Ok I see now, but I think you should post thr code that fetches the array back from db for editing.

    – Nikos M.
    Nov 16 '18 at 9:27















0















I have an array in Vuejs.



overtime_rates: ;


This array comes from the parent to this page. I sent it through v-model="overtime.overtime_rates" , and take it in the child as:



props: 

value: Array,

,
computed:
overtime_rates:
get()
return this.value;
,
set(value)
this.$emit('input', value);

,
,


In my method when the array is empty (in create mode) and i try to push the object into it, the watch works fine and can capture all changes for any new push.



let rateOT = 
startTime:
hours: 0,
minutes: 0,
,
endTime:
hours: 23,
minutes: 59,
,

this.overtime_rates.push(rateOT);


But after i save the array in database and fetch it for edit, when i try to edit each record the watch cannot catch the changes.



The function which is called in watch is :



method: 
autoTime()
for (let i = 1; i < this.overtime_rates.length; i++)

if (this.overtime_rates[i - 1].endTime.minutes >= 0
&& this.overtime_rates[i - 1].endTime.minutes < 59)
this.overtime_rates[i].startTime.minutes =
parseInt(this.overtime_rates[i - 1].endTime.minutes) + 1;
this.overtime_rates[i].startTime.hours =
parseInt(this.overtime_rates[i -
1].endTime.hours);

else if (this.overtime_rates[i - 1].endTime.minutes == 59)
this.overtime_rates[i].startTime.minutes = 0;
this.overtime_rates[i].startTime.hours = parseInt(this.overtime_rates[i - 1].endTime.hours) + 1;



,



The watch code is as follow:



watch: {
value:
handler: function ()

this.autoTime();


,
deep: true
,


Pleas any one can help me?










share|improve this question
























  • you have to re-watch it after db fetch as it is a new instance and watch was for the previous instance

    – Nikos M.
    Nov 15 '18 at 9:29











  • @NikosM. thank you so much , may i ask you how can i do rewatch? I edited and added my watch code in the question.

    – Sara
    Nov 15 '18 at 9:53











  • hmm i'm afraid I cannot get how you watch the object it is not clear from the code you posted, do you use a polyfill? where exactly does this code reside? what is this.autoTime()? these are missing, I can help better if I know that

    – Nikos M.
    Nov 15 '18 at 9:58











  • Thanks @NikosM. i just afraid that if i put whole code it becomes confusing , i edited again and include the additional code

    – Sara
    Nov 16 '18 at 1:19











  • Ok I see now, but I think you should post thr code that fetches the array back from db for editing.

    – Nikos M.
    Nov 16 '18 at 9:27













0












0








0








I have an array in Vuejs.



overtime_rates: ;


This array comes from the parent to this page. I sent it through v-model="overtime.overtime_rates" , and take it in the child as:



props: 

value: Array,

,
computed:
overtime_rates:
get()
return this.value;
,
set(value)
this.$emit('input', value);

,
,


In my method when the array is empty (in create mode) and i try to push the object into it, the watch works fine and can capture all changes for any new push.



let rateOT = 
startTime:
hours: 0,
minutes: 0,
,
endTime:
hours: 23,
minutes: 59,
,

this.overtime_rates.push(rateOT);


But after i save the array in database and fetch it for edit, when i try to edit each record the watch cannot catch the changes.



The function which is called in watch is :



method: 
autoTime()
for (let i = 1; i < this.overtime_rates.length; i++)

if (this.overtime_rates[i - 1].endTime.minutes >= 0
&& this.overtime_rates[i - 1].endTime.minutes < 59)
this.overtime_rates[i].startTime.minutes =
parseInt(this.overtime_rates[i - 1].endTime.minutes) + 1;
this.overtime_rates[i].startTime.hours =
parseInt(this.overtime_rates[i -
1].endTime.hours);

else if (this.overtime_rates[i - 1].endTime.minutes == 59)
this.overtime_rates[i].startTime.minutes = 0;
this.overtime_rates[i].startTime.hours = parseInt(this.overtime_rates[i - 1].endTime.hours) + 1;



,



The watch code is as follow:



watch: {
value:
handler: function ()

this.autoTime();


,
deep: true
,


Pleas any one can help me?










share|improve this question
















I have an array in Vuejs.



overtime_rates: ;


This array comes from the parent to this page. I sent it through v-model="overtime.overtime_rates" , and take it in the child as:



props: 

value: Array,

,
computed:
overtime_rates:
get()
return this.value;
,
set(value)
this.$emit('input', value);

,
,


In my method when the array is empty (in create mode) and i try to push the object into it, the watch works fine and can capture all changes for any new push.



let rateOT = 
startTime:
hours: 0,
minutes: 0,
,
endTime:
hours: 23,
minutes: 59,
,

this.overtime_rates.push(rateOT);


But after i save the array in database and fetch it for edit, when i try to edit each record the watch cannot catch the changes.



The function which is called in watch is :



method: 
autoTime()
for (let i = 1; i < this.overtime_rates.length; i++)

if (this.overtime_rates[i - 1].endTime.minutes >= 0
&& this.overtime_rates[i - 1].endTime.minutes < 59)
this.overtime_rates[i].startTime.minutes =
parseInt(this.overtime_rates[i - 1].endTime.minutes) + 1;
this.overtime_rates[i].startTime.hours =
parseInt(this.overtime_rates[i -
1].endTime.hours);

else if (this.overtime_rates[i - 1].endTime.minutes == 59)
this.overtime_rates[i].startTime.minutes = 0;
this.overtime_rates[i].startTime.hours = parseInt(this.overtime_rates[i - 1].endTime.hours) + 1;



,



The watch code is as follow:



watch: {
value:
handler: function ()

this.autoTime();


,
deep: true
,


Pleas any one can help me?







javascript vue.js






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 16 '18 at 1:27







Sara

















asked Nov 15 '18 at 9:20









SaraSara

14




14












  • you have to re-watch it after db fetch as it is a new instance and watch was for the previous instance

    – Nikos M.
    Nov 15 '18 at 9:29











  • @NikosM. thank you so much , may i ask you how can i do rewatch? I edited and added my watch code in the question.

    – Sara
    Nov 15 '18 at 9:53











  • hmm i'm afraid I cannot get how you watch the object it is not clear from the code you posted, do you use a polyfill? where exactly does this code reside? what is this.autoTime()? these are missing, I can help better if I know that

    – Nikos M.
    Nov 15 '18 at 9:58











  • Thanks @NikosM. i just afraid that if i put whole code it becomes confusing , i edited again and include the additional code

    – Sara
    Nov 16 '18 at 1:19











  • Ok I see now, but I think you should post thr code that fetches the array back from db for editing.

    – Nikos M.
    Nov 16 '18 at 9:27

















  • you have to re-watch it after db fetch as it is a new instance and watch was for the previous instance

    – Nikos M.
    Nov 15 '18 at 9:29











  • @NikosM. thank you so much , may i ask you how can i do rewatch? I edited and added my watch code in the question.

    – Sara
    Nov 15 '18 at 9:53











  • hmm i'm afraid I cannot get how you watch the object it is not clear from the code you posted, do you use a polyfill? where exactly does this code reside? what is this.autoTime()? these are missing, I can help better if I know that

    – Nikos M.
    Nov 15 '18 at 9:58











  • Thanks @NikosM. i just afraid that if i put whole code it becomes confusing , i edited again and include the additional code

    – Sara
    Nov 16 '18 at 1:19











  • Ok I see now, but I think you should post thr code that fetches the array back from db for editing.

    – Nikos M.
    Nov 16 '18 at 9:27
















you have to re-watch it after db fetch as it is a new instance and watch was for the previous instance

– Nikos M.
Nov 15 '18 at 9:29





you have to re-watch it after db fetch as it is a new instance and watch was for the previous instance

– Nikos M.
Nov 15 '18 at 9:29













@NikosM. thank you so much , may i ask you how can i do rewatch? I edited and added my watch code in the question.

– Sara
Nov 15 '18 at 9:53





@NikosM. thank you so much , may i ask you how can i do rewatch? I edited and added my watch code in the question.

– Sara
Nov 15 '18 at 9:53













hmm i'm afraid I cannot get how you watch the object it is not clear from the code you posted, do you use a polyfill? where exactly does this code reside? what is this.autoTime()? these are missing, I can help better if I know that

– Nikos M.
Nov 15 '18 at 9:58





hmm i'm afraid I cannot get how you watch the object it is not clear from the code you posted, do you use a polyfill? where exactly does this code reside? what is this.autoTime()? these are missing, I can help better if I know that

– Nikos M.
Nov 15 '18 at 9:58













Thanks @NikosM. i just afraid that if i put whole code it becomes confusing , i edited again and include the additional code

– Sara
Nov 16 '18 at 1:19





Thanks @NikosM. i just afraid that if i put whole code it becomes confusing , i edited again and include the additional code

– Sara
Nov 16 '18 at 1:19













Ok I see now, but I think you should post thr code that fetches the array back from db for editing.

– Nikos M.
Nov 16 '18 at 9:27





Ok I see now, but I think you should post thr code that fetches the array back from db for editing.

– Nikos M.
Nov 16 '18 at 9:27












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