Hello Everybody,
I have a user entry form and the form has several drop down menus; 5 to be
exact, and there populated at initial page load so that the user can select
from. In order to populate the drop down menus I making several HTTP
request which I'm not sure if its the best way to make the request to the
database. My code seems to be a bit *fat* and i'm thinking there's better
way to handle the request.
Is there a better way to make the http request, am I over coding the script
or what I am doing is fine??
*component.ts*
as you can see, I'm calling each individual methods to populate the drop
down menu and I'm doing this 5 times.
ngOnInit(){
* this._getPopulateDropDownList.getProjectListMethod()*
.subscribe(
data1 => {
if(data1.length === 0) {
this.errorMessage = 'failed
stage 1';
return false;
}
else{
this.errorMessage = '';
this.projectListFromDB = data1;
return true;
}
}
);
*this._getPopulateDropDownList.getProjectTaskMethod()*
.subscribe(
task1 => {
if(task1.length === 0) {
this.errorMessage = 'failed
stage 1';
return false;
}
else{
this.errorMessage = '';
this.projectTaskFromDB = task1;
return true;
}
},
*service.ts*
In my service.ts, you can see that I have the the observables to get the
data but again I'm doing this 5 with smilar coding.. the drop down menus
are not dependent on the above drop down menu
*getProjectListMethod(): Observable<any>{ *
let headers = new Headers({'Content-Type': 'application/json' });
let options = new RequestOptions({ headers: headers });
return this._http
.post(this.URLProjectList, options)
.map((res: Response) => res.json())
.catch (this.handleError);
} //END - getUserListMethod
* getProjectTaskMethod(): Observable<any>{*
let headers = new Headers({'Content-Type': 'application/json' });
let options = new RequestOptions({ headers: headers });
return this._http
.post(this.URLProjectTask, options)
.map((res: Response) => res.json())
.catch (this.handleError);
} //END -
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