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bread.js
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const knex = require('../knex');
const debug = require('debug')('bread');
const { throwDatabaseError, throwNotFound } = require('../lib/errors');
const defaultOptions = {
dateField: 'created_at',
dbApi: knex,
limit: 1000,
offset: 0,
sortOrder: 'ASC',
};
module.exports = {
browse(table, fields, filter, options = {}) {
const dbApi = options.dbApi || defaultOptions.dbApi;
const limit = options.limit || defaultOptions.limit;
const offset = options.offset || defaultOptions.offset;
const dateField = options.dateField || defaultOptions.dateField;
const sortOrder = options.sortOrder || defaultOptions.sortOrder;
let query = dbApi(table)
.where(filter)
.select(fields)
.limit(limit)
.offset(offset);
if (options.search_start_date && options.search_end_date) {
query = query
.whereBetween(dateField, [options.search_start_date, options.search_end_date]);
}
if (options.whereRaw && (options.whereRaw.length === 2)) {
query = query
.whereRaw(options.whereRaw[0], options.whereRaw[1]);
}
if (options.orderBy) {
query = query
.orderBy(options.orderBy, sortOrder);
}
if (options.transaction) {
query = query
.transacting(options.transaction);
}
return query
.catch((err) => {
debug(err);
return throwDatabaseError(err);
})
.then((rows) => {
return rows;
});
},
read(table, fields, filter, options = {}) {
const dbApi = options.dbApi || knex;
let query = dbApi(table)
.where(filter)
.select(fields);
if (options.transaction) {
query = query.transacting(options.transaction);
}
return query
.catch((err) => {
debug(err);
return throwDatabaseError(err);
})
.then(([row]) => {
if (row) {
return row;
}
return throwNotFound();
});
},
add(table, fields, data, options = {}) {
const dbApi = options.dbApi || knex;
let query = dbApi(table)
.returning(fields)
.insert(data);
if (options.transaction) {
query = query.transacting(options.transaction);
}
return query
.catch((err) => {
debug(err);
return throwDatabaseError(err);
})
.then(([row]) => {
return row;
});
},
edit(table, fields, data, filter, options = {}) {
const dbApi = options.dbApi || knex;
let query = dbApi(table)
.where(filter)
.returning(fields)
.update(data);
if (options.transaction) {
query = query.transacting(options.transaction);
}
return query
.catch((err) => {
debug(err);
return throwDatabaseError(err);
})
.then(([row]) => {
if (row) {
return row;
}
return throwNotFound();
});
},
del(table, filter, options = {}) {
const dbApi = options.dbApi || knex;
let query = dbApi(table)
.where(filter)
.del();
if (options.transaction) {
query = query.transacting(options.transaction);
}
return query
.catch((err) => {
debug(err);
return throwDatabaseError(err);
})
.then((row) => {
if (row === 0) {
return throwNotFound();
}
return row;
});
},
rawQuery(query, queryArgs = {}, options = {}) {
const dbApi = options.dbApi || knex;
return dbApi.raw(query, queryArgs)
.then(({ rows }) => {
return rows;
})
.catch((err) => {
debug(err);
return throwDatabaseError(err);
});
}
};