[英]ArangoDB - Query doesn't work in FOXX but works in web interface
This query: 该查询:
FOR clinic IN exameFacil_clinics
LET procedures_list = (
FOR procedure IN clinic.procedures
FILTER LIKE(procedure.name, "%hemo%", true)
COLLECT procedures_list = procedure.name
RETURN procedures_list
)
FILTER LENGTH(procedures_list) > 0
RETURN{
clinic_name: clinic.name,
procedures_list: procedures_list}
works fine and return the expected result when executing in the web interface for ArangoDB, in the AQL editor, but gives me an error when I try to execute in a FOXX repository: 在AQL编辑器中的ArangoDB的Web界面中执行时,可以正常工作并返回预期的结果,但是当我尝试在FOXX存储库中执行时却给我一个错误:
'use strict';
var Foxx = require('org/arangodb/foxx');
module.exports = Foxx.Repository.extend({
// Add your custom methods here
//Return all procedures from a clinic, given the clinic id
getAllProcedures: Foxx.createQuery({
query: 'FOR clinic IN exameFacil_clinics FILTER clinic._key == @id RETURN clinic.procedures',
params: ['id']
}),
//Make a 'LIKE' query in all procedures from all clinics, given the search string ( procedure name )
searchProcedure: Foxx.createQuery({
query: 'FOR clinic IN exameFacil_clinics
LET procedures_list = (
FOR procedure IN clinic.procedures
FILTER LIKE(procedure.name, "%hemo%", true)
COLLECT procedures_list = procedure.name
RETURN procedures_list
)
FILTER LENGTH(procedures_list) > 0
RETURN{
clinic_name: clinic.name,
procedures_list: procedures_list}'
}),
});
The error: 错误:
[ArangoError 3103: failed to invoke module File: c:/Program Files/ArangoDB 2.6.2/var/lib/arangodb-apps/_db/_system/exameFacil/APP/controllers/clinics.js] at [object Object].Module.run (C:\\Program Files\\ArangoDB 2.6.2\\bin../share/arangodb/js/common/bootstrap/modules.js:1420:20) at ArangoApp.loadAppScript (c:/Program Files/ArangoDB 2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/arangoApp.js:452:24) at mountController (c:/Program Files/ArangoDB 2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/routing.js:661:7) at c:/Program Files/ArangoDB 2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/routing.js:630:9 at Array.forEach (native) at routeApp (c:/Program Files/ArangoDB 2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/routing.js:629:32) at Object.routes (c:/Program Files/ArangoDB 2.6.2/share/arangodb/js/server/modules/org/arangodb/foxx/manager.js:268:10) at foxxRouting (c:/Program Files/ArangoDB 2.6.2/share/arangodb/js/server/modules/org/arangodb/actions.js:
[ArangoError 3103:无法在[object Object] .Module上调用模块文件:c:/ Program Files / ArangoDB 2.6.2 / var / lib / arangodb-apps / _db / _system / exameFacil / APP / controllers / clinics.js]。 .run(C:\\ Program Files \\ ArangoDB 2.6.2 \\ bin ../ share / arangodb / js / common / bootstrap / modules.js:1420:20)在ArangoApp.loadAppScript(c:/ Program Files / ArangoDB 2.6。 2 / share / arangodb / js / server / modules / org / arangodb / foxx / arangoApp.js:452:24)在mountController(c:/ Program Files / ArangoDB 2.6.2 / share / arangodb / js / server / modules / org / arangodb / foxx / routing.js:661:7)位于c:/ Program Files / ArangoDB 2.6.2 / share / arangodb / js / server / modules / org / arangodb / foxx / routing.js:630:9 Object.routes(c上的routeApp(c:/ Program Files / ArangoDB 2.6.2 / share / arangodb / js / server / modules / org / arangodb / foxx / routing.js:629:32)上的Array.forEach(本机) :/ Program Files / ArangoDB 2.6.2 / share / arangodb / js / server / modules / org / arangodb / foxx / manager.js:268:10)位于foxxRouting(c:/ Program Files / ArangoDB 2.6.2 / share / arangodb / js / server / modules / org / arangodb / actions.js: 1054:74) at execute (c:/Program Files/ArangoDB 2.6.2/share/arangodb/js/server/modules/org/arangodb/actions.js:1308:7) at Object.routeRequest (c:/Program Files/ArangoDB 2.6.2/share/arangodb/js/server/modules/org/arangodb/actions.js:1329:3) at Function.actions.defineHttp.callback (c:\\Program Files\\ArangoDB 2.6.2\\share\\arangodb\\js\\actions\\api-system.js:58:15)
1054:74)在Object.routeRequest(c:/ Program Files)执行(c:/ Program Files / ArangoDB 2.6.2 / share / arangodb / js / server / modules / org / arangodb / actions.js:1308:7) / ArangoDB 2.6.2 / share / arangodb / js / server / modules / org / arangodb / actions.js:1329:3),位于Function.actions.defineHttp.callback(c:\\ Program Files \\ ArangoDB 2.6.2 \\ share \\ arangodb \\ js \\ actions \\ api-system.js:58:15)
Any advice? 有什么建议吗? Thanks
谢谢
The reason for the error is a JavaScript parse error in the example code. 该错误的原因是示例代码中的JavaScript分析错误。 JavaScript doesn't support multi-line strings as used in function
searchProcedure
. JavaScript不支持
searchProcedure
函数中使用的多行字符串。 To make a query string span multiple lines, you will either have to use string concatenation or a template string (a string enclosed in backticks, ES6 feature). 要使查询字符串跨越多行,您将不得不使用字符串串联或模板字符串(用反引号括起来的字符串,ES6功能)。
Example for string concatenation: 字符串连接示例:
searchProcedure: Foxx.createQuery({
query: 'FOR clinic IN exameFacil_clinics' +
' LET procedures_list = (' +
// ... string goes on here
'procedures_list: procedures_list}'
}),
Example for using a template string: 使用模板字符串的示例:
searchProcedure: Foxx.createQuery({
query: `FOR clinic IN exameFacil_clinics
LET procedures_list = (
// ... string goes on here
procedures_list: procedures_list}`
}),
Another alternative is to put the query string onto a single line. 另一种选择是将查询字符串放在一行上。 Which alternative to use for the above query is a matter of readability and style preferences.
用于上述查询的哪种选择取决于可读性和样式首选项。
When dealing with user-generated input, I suggest also using bind parameters to separate user input from the actual query string and protect against injections. 当处理用户生成的输入时,我建议还使用绑定参数将用户输入与实际查询字符串分开,并防止注入。
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