92 lines
2.7 KiB
JavaScript
92 lines
2.7 KiB
JavaScript
const ParameterizedSQL = require('loopback-connector').ParameterizedSQL;
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const mergeFilters = require('vn-loopback/util/filter').mergeFilters;
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module.exports = Self => {
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Self.remoteMethod('lastItemBuys', {
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description: 'Returns a list of items from last buys',
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accepts: [
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{
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arg: 'id',
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type: 'number',
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required: true,
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description: 'origin itemId',
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http: {source: 'path'}
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},
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{
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arg: 'filter',
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type: 'object',
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description: `Filter defining where, order, offset, and limit - must be a JSON-encoded string`
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}
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],
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returns: {
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type: ['object'],
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root: true
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},
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http: {
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path: `/:id/lastItemBuys`,
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verb: 'GET'
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}
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});
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Self.lastItemBuys = async(id, filter, options) => {
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const conn = Self.dataSource.connector;
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const models = Self.app.models;
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const where = {isActive: true};
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const myOptions = {};
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if (typeof options == 'object')
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Object.assign(myOptions, options);
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filter = mergeFilters(filter, {where});
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const entry = await models.Entry.findById(id, {
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include: [{
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relation: 'travel',
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scope: {
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fields: ['warehouseInFk', 'landed'],
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}
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}]
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}, myOptions);
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const travel = entry.travel();
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const stmts = [];
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let stmt;
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stmt = new ParameterizedSQL(`CALL buyUltimate(?, ?)`, [
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travel.warehouseInFk,
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travel.landed
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]);
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stmts.push(stmt);
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stmts.push('DROP TEMPORARY TABLE IF EXISTS tmp.item');
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stmt = new ParameterizedSQL(
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`CREATE TEMPORARY TABLE tmp.item
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(PRIMARY KEY (id))
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ENGINE = MEMORY
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SELECT
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i.*,
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p.name AS producerName,
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nk.name AS inkName
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FROM item i
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JOIN producer p ON p.id = i.producerFk
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JOIN ink nk ON nk.id = i.inkFk
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JOIN tmp.buyUltimate bu ON i.id = bu.itemFk
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AND bu.warehouseFk = ?
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`, [travel.warehouseInFk]);
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stmts.push(stmt);
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stmt = new ParameterizedSQL('SELECT * FROM tmp.item');
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stmt.merge(conn.makeSuffix(filter));
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const itemsIndex = stmts.push(stmt) - 1;
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stmts.push('DROP TEMPORARY TABLE tmp.item');
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const sql = ParameterizedSQL.join(stmts, ';');
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const result = await conn.executeStmt(sql, myOptions);
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return result[itemsIndex];
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};
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};
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