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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | 18x 18x 18x 18x 18x 34x 34x 16x 16x 2x 2x 2x 2x 1x 1x 1x 1x | /**
* Book condition service.
* @packageDocumentation
*/
import { Injectable, Inject, forwardRef } from '@nestjs/common';
import { DBService } from '../db/db.service';
import { NBBookCondition } from './book-condition.interface';
import { ServiceException } from '../service.exception';
/**
* Book condition table name.
*/
export const bookConditionTableName = 'NB_BOOK_CONDITION';
/**
* Book condition table service.
*/
@Injectable()
export class BookConditionService {
constructor(
@Inject(forwardRef(() => DBService))
private readonly dbService: DBService,
) {}
/**
* Determine whether or not a book condition exists.
*
* @param conditionID The book condition's ID.
* @params Whether or not the book condition exists.
*/
public async bookConditionExists(conditionID: number): Promise<boolean> {
const bookCondition = await this.dbService.getByID<NBBookCondition>(
bookConditionTableName,
conditionID,
);
return !!bookCondition;
}
/**
* Determine whether or not a book condition exists.
*
* @param conditionName Thhe book condition's name.
* @returns Whether or not the book condition exists.
*/
public async bookConditionExistsByName(
conditionName: string,
): Promise<boolean> {
const bookCondition = await this.dbService.getByFields<NBBookCondition>(
bookConditionTableName,
{ name: conditionName },
);
return !!bookCondition;
}
/**
* Get the name of a book condition.
*
* @param conditionID The book condition's ID.
* @return The name of the book condition.
*/
public async getBookConditionName(conditionID: number): Promise<string> {
const bookCondition = await this.dbService.getByID<NBBookCondition>(
bookConditionTableName,
conditionID,
);
if (bookCondition) {
return bookCondition.name;
} else {
throw new ServiceException('Book condition does not exist');
}
}
/**
* Get all book conditions.
*
* @returns All book conditions.
*/
public async getBookConditions(): Promise<NBBookCondition[]> {
const bookConditions = await this.dbService.list<NBBookCondition>(
bookConditionTableName,
{ fieldName: 'id', sortOrder: 'ASC' },
);
return bookConditions;
}
}
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