Angular method containing reusable object

Question

Angular method containing reusable object

I have a simple list where I want to optimize my code by only updating the admin2 object once. The goal is for admin2 to be set equal to (property) Admin2Component.admin2: IAdmin2:

In simpler terms, I need to update this admin2 with three different pagination objects: projectPagination, consultantPagination, and newsletterPagination.

private updateList(
    projectPagination: IPaginationResponse <IProject>,
    consultantPagination: IPaginationResponse <IConsultant>,
    newsletterPagination: IPaginationResponse <INewsletter>
) {
    this.admin2 = projectPagination.data;
    this.pagination.total = projectPagination.meta.pagination.total;
    this.pagination.page = projectPagination.meta.pagination.current_page;

    this.admin2 = consultantPagination.data;
    this.pagination.total = consultantPagination.meta.pagination.total;
    this.pagination.page = consultantPagination.meta.pagination.current_page;

    this.admin2 = newsletterPagination.data;
    this.pagination.total = newsletterPagination.meta.pagination.total;
    this.pagination.page = newsletterPagination.meta.pagination.current_page;
}

Later on:

$onInit() {
    console.log(this.projectPagination, this.consultantPagination,
    this.newsletterPagination);
    this.updateList(
        this.projectPagination,
        this.consultantPagination,
        this.newsletterPagination
    );
}

angular typescript

Answer 1

Answer №1

My interpretation leads me to believe that you are dealing with 3 distinct sets of pagination values and you need to incorporate all 3 within your component. However, your current approach involves repeatedly assigning one set of class properties to each of the 3 values in succession. This methodology will not yield the desired outcome as your class properties will continuously reflect the last assignment made.

To address this issue, consider generating 2 additional sets of class properties. Your initial structure may resemble something along the lines of:

class MyClass {
    admin2: any;
    pagination: any;

    // ...
}

You should transform it into a more comprehensive layout (remember to allocate more distinctive names, adhering to your existing naming convention):

class MyClass {
    admin: IProject;
    pagination: IPaginationResponse<IProject>;

    admin2: IConsultant;
    pagination2: IPaginationResponse<IConsultant>;

    admin3: INewsletter;
    pagination3: IPaginationResponse<INewsletter>;

    // ...
}

This restructuring affords you 3 separate sets of class properties, each corresponding to a distinct pagination object for your components.

Next, modify your updateList function to assign all 3 sets of properties instead of iteratively reassigning the same set thrice:

private updateList(
    projectPagination: IPaginationResponse <IProject>,
    consultantPagination: IPaginationResponse <IConsultant>,
    newsletterPagination: IPaginationResponse <INewsletter>
) {
    this.admin = projectPagination.data;
    this.pagination.total = projectPagination.meta.pagination.total;
    this.pagination.page = projectPagination.meta.pagination.current_page;

    this.admin2 = consultantPagination.data;
    this.pagination2.total = consultantPagination.meta.pagination.total;
    this.pagination2.page = consultantPagination.meta.pagination.current_page;

    this.admin3 = newsletterPagination.data;
    this.pagination3.total = newsletterPagination.meta.pagination.total;
    this.pagination3.page = newsletterPagination.meta.pagination.current_page;
}

Prioritize the instantiation of your class properties to prevent them from defaulting to undefined, thereby avoiding errors such as "cannot access foo of undefined" when attempting operations like this.pagination.foo.

Answer 2

My interpretation leads me to believe that you are dealing with 3 distinct sets of pagination values and you need to incorporate all 3 within your component. However, your current approach involves repeatedly assigning one set of class properties to each of the 3 values in succession. This methodology will not yield the desired outcome as your class properties will continuously reflect the last assignment made.

To address this issue, consider generating 2 additional sets of class properties. Your initial structure may resemble something along the lines of:

class MyClass {
    admin2: any;
    pagination: any;

    // ...
}

You should transform it into a more comprehensive layout (remember to allocate more distinctive names, adhering to your existing naming convention):

class MyClass {
    admin: IProject;
    pagination: IPaginationResponse<IProject>;

    admin2: IConsultant;
    pagination2: IPaginationResponse<IConsultant>;

    admin3: INewsletter;
    pagination3: IPaginationResponse<INewsletter>;

    // ...
}

This restructuring affords you 3 separate sets of class properties, each corresponding to a distinct pagination object for your components.

Next, modify your updateList function to assign all 3 sets of properties instead of iteratively reassigning the same set thrice:

private updateList(
    projectPagination: IPaginationResponse <IProject>,
    consultantPagination: IPaginationResponse <IConsultant>,
    newsletterPagination: IPaginationResponse <INewsletter>
) {
    this.admin = projectPagination.data;
    this.pagination.total = projectPagination.meta.pagination.total;
    this.pagination.page = projectPagination.meta.pagination.current_page;

    this.admin2 = consultantPagination.data;
    this.pagination2.total = consultantPagination.meta.pagination.total;
    this.pagination2.page = consultantPagination.meta.pagination.current_page;

    this.admin3 = newsletterPagination.data;
    this.pagination3.total = newsletterPagination.meta.pagination.total;
    this.pagination3.page = newsletterPagination.meta.pagination.current_page;
}

Prioritize the instantiation of your class properties to prevent them from defaulting to undefined, thereby avoiding errors such as "cannot access foo of undefined" when attempting operations like this.pagination.foo.

Angular method containing reusable object

Answer №1

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