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server: refactor pagination

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* fix transaction usgae in repos
* other bug fixes
This commit is contained in:
Philipinho
2024-04-01 01:23:52 +01:00
parent ade3a5b589
commit 4913975e99
38 changed files with 648 additions and 756 deletions
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14
apps/server/src/helpers/pagination/paginated-result.ts
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import { IsArray } from 'class-validator';
import { PaginationMetaDto } from './pagination-meta-dto';
export class PaginatedResult<T> {
@IsArray()
readonly items: T[];
readonly pagination: PaginationMetaDto;
constructor(items: T[], pagination: PaginationMetaDto) {
this.items = items;
this.pagination = pagination;
}
}

29
apps/server/src/helpers/pagination/pagination-meta-dto.ts
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import { PaginationOptions } from './pagination-options';
export class PaginationMetaDto {
readonly page: number;
readonly limit: number;
readonly total: number;
readonly pageCount: number;
readonly hasPreviousPage: boolean;
readonly hasNextPage: boolean;
constructor({ count, paginationOptions }: PageMetaDtoParameters) {
this.page = paginationOptions.page;
this.limit = paginationOptions.limit;
this.total = count;
this.pageCount = Math.ceil(this.total / this.limit);
this.hasPreviousPage = this.page > 1;
this.hasNextPage = this.page < this.pageCount;
}
}
export interface PageMetaDtoParameters {
count: number;
paginationOptions: PaginationOptions;
}

28
apps/server/src/helpers/pagination/pagination-options.ts
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import { IsNumber, IsOptional, IsPositive, Max, Min } from 'class-validator';
export class PaginationOptions {
@IsOptional()
@IsNumber()
@Min(1)
page = 1;
@IsOptional()
@IsNumber()
@IsPositive()
@Min(1)
@Max(100)
limit = 20;
@IsOptional()
@IsNumber()
offset = 0;
get skip(): number {
return (this.page - 1) * this.limit;
}
}
export enum Order {
ASC = 'ASC',
DESC = 'DESC',
}