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/**
* Service API methods
* @module app/db/service/base/methods
*/
import * as db from "app/db/query";
import { reduceValidColumns } from "app/db/helpers";
import { PERMISSIONS } from "app/constants";
import debugModule from "debug";
/**
* Export methods for dealing with multiple records
*/
export { showMany, updateMany, destroyMany } from "app/db/service/base/many";
/**
* Debug logger
*/
const debug = debugModule("shoebox:service");
/**
* API to filter and paginate lists of resources
*/
export function index(service) {
const { columns } = service;
return async function indexMiddleware(request, response, next) {
const { query: userQuery, params, permission, user } = request;
const { paginate } = service.options;
const queryBuilder = service.queryBuilder;
const query = {
...userQuery,
...params,
};
const withRelated = userQuery.related ? userQuery.related.split(",") : [];
if (permission === PERMISSIONS.ALLOW_FOR_OWNER) {
query.user_id = user.user_id;
}
let data, pagination;
let promises = [
db.index({
Model: service.Model,
query,
paginate,
user,
columns,
queryBuilder,
withRelated,
}),
];
if (paginate) {
promises.push(
db.count({
Model: service.Model,
query,
paginate,
user,
columns,
queryBuilder,
})
);
} else {
promises.push(new Promise((resolve) => resolve({})));
}
try {
[data, pagination] = await Promise.all(promises);
} catch (error) {
debug(`${service.resource} Index error`);
debug(error);
console.error(error);
return next(error);
}
response.locals = {
data,
pagination,
query,
};
next();
};
}
/**
* API to query for a single record by ID
*/
export function show(service) {
return async function showMiddleware(request, response, next) {
const { user, permission, query } = request;
const withRelated = query.related ? query.related.split(",") : [];
let data;
try {
data = await db.show({
Model: service.Model,
objectID: parseInt(request.params.id),
withRelated,
});
} catch (error) {
debug(`${service.resource} Show error`);
debug(error);
return next(error);
}
if (!data) {
response.locals = {};
next();
} else if (
permission === PERMISSIONS.ALLOW_FOR_OWNER &&
data.get("user_id") !== user.user_id
) {
next(new Error("PermissionsError"));
} else {
response.locals = { data };
next();
}
};
}
/**
* API to insert a new record
*/
export function create(service) {
return async function createMiddleware(request, response, next) {
const body = reduceValidColumns(
request.body,
service.columns,
service.options.privateFields
);
if (service.options.parent) {
service.idAttributes.forEach((idAttribute) => {
if (idAttribute in request.params && idAttribute in service.columns) {
body[idAttribute] = request.params[idAttribute];
}
});
}
let data;
try {
data = await db.create({ Model: service.Model, data: body });
} catch (error) {
debug(`${service.resource} create error`);
console.error(error);
return next(error);
}
response.locals = { data };
next();
};
}
/**
* API to update a single record
*/
export function update(service) {
return async function updateMiddleware(request, response, next) {
const { data: instance } = response.locals;
const { user, permission } = request;
if (
permission === PERMISSIONS.ALLOW_FOR_OWNER &&
instance.get("user_id") !== user.user_id
) {
return next(new Error("PermissionsError"));
}
const body = reduceValidColumns(
request.body,
service.columns,
service.options.privateFields
);
let data;
try {
data = await db.update({
instance,
data: body,
});
} catch (error) {
debug(`${service.resource} update error`);
debug(error);
next(new Error(error));
}
response.locals = { data };
next();
};
}
/**
* API to sort records
*/
export function sort(service) {
return async function sortMiddleware(request, response, next) {
const { ids } = request.body;
const items = await db.showIDs({
Model: service.Model,
ids,
});
for (let item of items) {
item.set("sort_order", ids.indexOf(item.id));
}
await Promise.all(items.map((item) => item.save()));
response.locals.success = true;
next();
};
}
/**
* API to destroy a single record
*/
export function destroy(service) {
return async function destroyMiddleware(request, response, next) {
try {
await db.destroy({
Model: service.Model,
objectID: request.params.id,
});
} catch (error) {
debug(`${service.resource} destroy error`);
console.error(error);
return next(new Error(error));
}
response.locals.success = true;
response.locals.id = request.params.id;
next();
};
}
|
