问题描述
当我使用带有Firebase和Elastic Search的Flashlight进行直接查询时,它确实有效:
查询
{index:firebase,query:rose,type:tasting}
$
$ b 代码 c $ c> ...
Map< String,String> q = new HashMap<>();
q.put(index,firebase);
q.put(type,tasting);
q.put(query,rose);
String key = ref.child(request)。push()。getKey();
ref.child(request)。child(key).setValue(q);
...
但是当我不想仅限于10个提示时, (无结果)
查询
{ 索引: 火力, 选项:{ 从 0 到:50}, 查询:{ QUERY_STRING:{ 查询: 玫瑰}},类型:tasting}
code
...
HashMap< String,String> q = new HashMap<>();
q.put(query,rose);
qs = new HashMap<>();
qs.put(query_string,q);
映射< String,Object> options = new HashMap<>();
options.put(from,0);
options.put(to,50);
HashMap< String,Object> qo = new HashMap<>();
qo.put(index,firebase);
qo.put(type,tasting);
qo.put(options,options);
qo.put(query,a);
String key = ref.child(request)。push()。getKey();
ref.child(request)。child(key).setValue(q);
...
我使用在Flashlight示例中提供的选项,选项:
$ $ p $ search:{
request:{
$ recid:{
//我只能读取分配给我的记录
.read:auth.id === data.child('id')。val()|| auth.uid === data.child('id')。val(),
//我只能写新的不存在的记录
.write:!data.exists()& &(newData.child('id').val()=== auth.id || newData.child('id').val()=== auth.uid),
。 validate:newData.hasChildren(['query','index','type']),
index:{
//接受数组或字符串
.validate :(newData.isString()& newData.val()。length< 1000)|| newData.hasChildren(),
$ child:{
.validate :newData.isString()& newData.val() h }
},
type:{
//接受数组或字符串
.validate:(newData.isString( )&& newData.val()。length< 1000)|| newData.hasString()&& amp;& amp; amp; amp;& amp; amp; amp; amp;& newData.val()。length< 1000
}
},
query:{
//查询对象的结构是相当开放的
.validate:newData。 isString()|| newData.hasChildren()
,
$ other:{
.validate:false
}
}
},
response:{
$ recid:{
//我只能读/写分配给我的记录
.read:auth.id === data .child('id')。val()|| auth.uid === data.child('id')。val(),
.write:auth.id === data.child('id')。 auth.uid === data.child('id').val(),
//假定Flashlight将使用具有admin:true的
/ /登录用户唯一需要做的就是在读取结果后删除结果
.validate:false
}
}
}
为什么选项参数可以在
我期望手电筒能够处理所有类型的elasticsearch查询2解决方案:
1 /不是
2 /我没有找到方法!
在我这边,我不得不这样更新Flashlight SearchQueue.js文件:
var dat = snap.val();
var key = snap.key();
//得到你的查询字符串
var q = dat.query.query_string.query;
//建立你的ES查询
var q1 = {query:{match:{_ all:q}}};
$ b $ if(this._assertValidSearch(key,dat)){
//执行(非常简单)ElasticSearch查询
this.esc.search({
index :dat.index,
类型:dat.type,
//添加选项
from:dat.options.from,
size:dat.options.size,
//添加ES查询
body:q1
},函数(error,response){
if(error){
this._reply(key,{error:error,总共:0});
} else {
this._reply(key,response);
}
} .bind(this));
}
},
When I use Flashlight with Firebase and Elastic search with a straight forward query it does work :
query
{"index":"firebase","query":"rose","type":"tasting"}
code
...
Map<String,String> q = new HashMap<>();
q.put("index", "firebase");
q.put("type", "tasting");
q.put("query", "rose");
String key = ref.child("request").push().getKey();
ref.child("request").child(key).setValue(q);
...
But when I want be not limited to only 10 hints, this failed (no results)
query
{"index":"firebase","options":{"from":0,"to":50},"query":{"query_string":{"query":"rose"}},"type":"tasting"}
code
...
HashMap<String, String> q = new HashMap<>();
q.put("query", "rose");
qs = new HashMap<>();
qs.put("query_string", q);
Map<String, Object> options = new HashMap<>();
options.put("from", 0);
options.put("to", 50);
HashMap<String, Object> qo = new HashMap<>();
qo.put("index", "firebase");
qo.put("type", "tasting");
qo.put("options", options);
qo.put("query", a);
String key = ref.child("request").push().getKey();
ref.child("request").child(key).setValue(q);
...
I use the option delivered in the Flashlight example, and add part for option :
"search": {
"request": {
"$recid": {
// I can only read records assigned to me
".read": "auth.id === data.child('id').val() || auth.uid === data.child('id').val()",
// I can only write new records that don't exist yet
".write": "!data.exists() && (newData.child('id').val() === auth.id || newData.child('id').val() === auth.uid)",
".validate": "newData.hasChildren(['query', 'index', 'type'])",
"index": {
// accepts arrays or strings
".validate": "(newData.isString() && newData.val().length < 1000) || newData.hasChildren()",
"$child": {
".validate": "newData.isString() && newData.val().length < 1000"
}
},
"type": {
// accepts arrays or strings
".validate": "(newData.isString() && newData.val().length < 1000) || newData.hasChildren()",
"$child": {
".validate": "newData.isString() && newData.val().length < 1000"
}
},
"query": {
// structure of the query object is pretty open-ended
".validate": "newData.isString() || newData.hasChildren()"
},
"$other": {
".validate": false
}
}
},
"response": {
"$recid": {
// I can only read/write records assigned to me
".read": "auth.id === data.child('id').val() || auth.uid === data.child('id').val()",
".write": "auth.id === data.child('id').val() || auth.uid === data.child('id').val()",
// Assumes that Flashlight will be writing the records using a secret or a token that has admin: true
// The only thing a logged in user needs to do is delete results after reading them
".validate": false
}
}
}
Why the options parameter can be find at https://github.com/firebase/flashlight/issues/29#issuecomment-129340229
I was expecting that flashlight would handle all type of elasticsearch queries. 2 solutions :1/ it doesn't2/ I didn't find how !
On my side, I had to update the Flashlight SearchQueue.js file like this :
_process: function (snap) {
var dat = snap.val();
var key = snap.key();
// get your query string
var q = dat.query.query_string.query;
// build your ES query
var q1 = {"query":{"match":{"_all":q}}};
if (this._assertValidSearch(key, dat)) {
// Perform (a very simple) ElasticSearch query
this.esc.search({
index: dat.index,
type: dat.type,
// add options
from : dat.options.from,
size : dat.options.size,
// add ES Query
body : q1
}, function (error, response) {
if (error) {
this._reply(key, {error: error, total: 0});
} else {
this._reply(key, response);
}
}.bind(this));
}
},
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