Angular Variable/Object undefined after passing to service function
I have the following code.
Detail.component.ts
ngOnInit() {
this.route.paramMap.subscribe((params) => {
const itemId = params.get('itemId') //works
console.log(itemId)
if (itemId === 'new') {
this.mode = 'new'
this.item = new Item()
} else {this.shoppingListService.getSingleItem(itemId).then((recItem) => {
this.item = recItem
console.log(JSON.stringify(this.item)); // works
})
}
})
}
The following function is triggerd inside the Detail.component.html
Before calling the servicecall ( updateItem or editItem ) the object is still defined!
async onSaveClicked() {
console.log("inside onsaveClicked" + JSON.stringify(this.item)); //works
try {
if (this.mode === 'new') {
this.shoppingListService.createItem(this.item)
this.router.navigate(['/list'])
} else if (this.mode === 'edit') {
this.shoppingListService.updateItem(this.item)
console.log("edit: " + JSON.stringify(this.item));
this.mode = 'view'
}
} catch (error) {
console.log(error)
}
}
The following service function is called
Inside this function the passed object ( updateItem ) is undefined.
async updateItem(updateItem: Item) {
console.log("inside update Item " + updateItem.id) //undefined
const result = await this.httpClient.put<any>(`${this.apiEndpoint}/${updateItem.id}`, updateItem).toPromise()
return result;
}
It has to do sth. with the asynchronous behaviour of th httpclient
but where exactly is the problem?
json angular
add a comment |
I have the following code.
Detail.component.ts
ngOnInit() {
this.route.paramMap.subscribe((params) => {
const itemId = params.get('itemId') //works
console.log(itemId)
if (itemId === 'new') {
this.mode = 'new'
this.item = new Item()
} else {this.shoppingListService.getSingleItem(itemId).then((recItem) => {
this.item = recItem
console.log(JSON.stringify(this.item)); // works
})
}
})
}
The following function is triggerd inside the Detail.component.html
Before calling the servicecall ( updateItem or editItem ) the object is still defined!
async onSaveClicked() {
console.log("inside onsaveClicked" + JSON.stringify(this.item)); //works
try {
if (this.mode === 'new') {
this.shoppingListService.createItem(this.item)
this.router.navigate(['/list'])
} else if (this.mode === 'edit') {
this.shoppingListService.updateItem(this.item)
console.log("edit: " + JSON.stringify(this.item));
this.mode = 'view'
}
} catch (error) {
console.log(error)
}
}
The following service function is called
Inside this function the passed object ( updateItem ) is undefined.
async updateItem(updateItem: Item) {
console.log("inside update Item " + updateItem.id) //undefined
const result = await this.httpClient.put<any>(`${this.apiEndpoint}/${updateItem.id}`, updateItem).toPromise()
return result;
}
It has to do sth. with the asynchronous behaviour of th httpclient
but where exactly is the problem?
json angular
You are loggingupdateItem.id
, notupdateItem
. Are you sure thatupdateItem
is undefined?
– JohnnyAW
Nov 14 '18 at 22:21
add a comment |
I have the following code.
Detail.component.ts
ngOnInit() {
this.route.paramMap.subscribe((params) => {
const itemId = params.get('itemId') //works
console.log(itemId)
if (itemId === 'new') {
this.mode = 'new'
this.item = new Item()
} else {this.shoppingListService.getSingleItem(itemId).then((recItem) => {
this.item = recItem
console.log(JSON.stringify(this.item)); // works
})
}
})
}
The following function is triggerd inside the Detail.component.html
Before calling the servicecall ( updateItem or editItem ) the object is still defined!
async onSaveClicked() {
console.log("inside onsaveClicked" + JSON.stringify(this.item)); //works
try {
if (this.mode === 'new') {
this.shoppingListService.createItem(this.item)
this.router.navigate(['/list'])
} else if (this.mode === 'edit') {
this.shoppingListService.updateItem(this.item)
console.log("edit: " + JSON.stringify(this.item));
this.mode = 'view'
}
} catch (error) {
console.log(error)
}
}
The following service function is called
Inside this function the passed object ( updateItem ) is undefined.
async updateItem(updateItem: Item) {
console.log("inside update Item " + updateItem.id) //undefined
const result = await this.httpClient.put<any>(`${this.apiEndpoint}/${updateItem.id}`, updateItem).toPromise()
return result;
}
It has to do sth. with the asynchronous behaviour of th httpclient
but where exactly is the problem?
json angular
I have the following code.
Detail.component.ts
ngOnInit() {
this.route.paramMap.subscribe((params) => {
const itemId = params.get('itemId') //works
console.log(itemId)
if (itemId === 'new') {
this.mode = 'new'
this.item = new Item()
} else {this.shoppingListService.getSingleItem(itemId).then((recItem) => {
this.item = recItem
console.log(JSON.stringify(this.item)); // works
})
}
})
}
The following function is triggerd inside the Detail.component.html
Before calling the servicecall ( updateItem or editItem ) the object is still defined!
async onSaveClicked() {
console.log("inside onsaveClicked" + JSON.stringify(this.item)); //works
try {
if (this.mode === 'new') {
this.shoppingListService.createItem(this.item)
this.router.navigate(['/list'])
} else if (this.mode === 'edit') {
this.shoppingListService.updateItem(this.item)
console.log("edit: " + JSON.stringify(this.item));
this.mode = 'view'
}
} catch (error) {
console.log(error)
}
}
The following service function is called
Inside this function the passed object ( updateItem ) is undefined.
async updateItem(updateItem: Item) {
console.log("inside update Item " + updateItem.id) //undefined
const result = await this.httpClient.put<any>(`${this.apiEndpoint}/${updateItem.id}`, updateItem).toPromise()
return result;
}
It has to do sth. with the asynchronous behaviour of th httpclient
but where exactly is the problem?
json angular
json angular
edited Nov 15 '18 at 0:30
CodingFreak
604725
604725
asked Nov 14 '18 at 22:04
LucasLucas
1
1
You are loggingupdateItem.id
, notupdateItem
. Are you sure thatupdateItem
is undefined?
– JohnnyAW
Nov 14 '18 at 22:21
add a comment |
You are loggingupdateItem.id
, notupdateItem
. Are you sure thatupdateItem
is undefined?
– JohnnyAW
Nov 14 '18 at 22:21
You are logging
updateItem.id
, not updateItem
. Are you sure that updateItem
is undefined?– JohnnyAW
Nov 14 '18 at 22:21
You are logging
updateItem.id
, not updateItem
. Are you sure that updateItem
is undefined?– JohnnyAW
Nov 14 '18 at 22:21
add a comment |
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You are logging
updateItem.id
, notupdateItem
. Are you sure thatupdateItem
is undefined?– JohnnyAW
Nov 14 '18 at 22:21