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Good evening community,
I got an problem while inserting a document in my mongoDB.
I am using the mongoshell 3.6.x
I try following:
db.collection.insert({
_id: 0000,
spot:"Gufi-See,
contact:{
street: "Haldenweg 10",
zipcode:"89423",
city:"Gundelfingen a.d. Donau",
homepage:"www.wasserski-gundelfingen.de",
phone:"09073/920690"
},
location:[
longitude:10.328760,
latitude:48.520839
]
})
Following error is thrown:
E QUERY [thread1] SyntaxError: missing } after property list #(shell):1:47
My problem is that i can't find the problem of the missing } ... Maybe One can help me out?! Thanks a lot.
Spot's name should have closed quotes like this: spot:"Gufi-See" and you can't store location in such way. You should change it to an object. Try:
db.collection.insert({
_id: 0000,
spot:"Gufi-See",
contact:{
street: "Haldenweg 10",
zipcode:"89423",
city:"Gundelfingen a.d. Donau",
homepage:"www.wasserski-gundelfingen.de",
phone:"09073/920690"
},
location:{
longitude: 10.328760,
latitude:48.520839
}
})
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I want to convert bin UID to String in Mongo DB, I am executing the below command on mongo console but I am getting the exception for the same, so please advise
db.test.findOne(){ "_id" : BinData(2,"AAATEREETEGAAAAGJIGAAA=="), "x" : 1 }
[2021-12-19 14:20:19] SyntaxError: Missing semicolon. (1:17)
[2021-12-19 14:20:19] > 1 | db.test.findOne(){ "_id" : BinData(3,"AAATEREETEGAAAAGJIGAAA=="), "x" : 1 }
[2021-12-19 14:20:19] | ^
[2021-12-19 14:20:19] at Parser._raise (all-standalone.js:734:17451)
and if I change the query to this below then I am getting null and not the value
db.test.findOne({ "_id" : BinData(3,"AAATEREETEGAAAAGJIGAAA=="), "x" : 1 })
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I'm new to Postgres and everything databases. I'm learning through a Pluralsight course and have finally managed to import a database. Following along with what the teacher is typing out, I query:
SELECT fl_date,
mkt_carrier AS airline
mkt_carrier_fl_num AS flight
origin,
dest
FROM performance
WHERE origin = 'ORD'
.. from a database that came with the course files, and get back this:
ERROR: syntax error at or near "mkt_carrier_fl_num"
LINE 3: mkt_carrier_fl_num AS flight
^
SQL state: 42601
Character: 45
I've googled the error code but apparently this can entail many different things. I have no idea where to go from here. Literally every function in this program is a mystery to me.
Please help.
SELECT fl_date
,mkt_carrier AS airline -- comma before the start of the column name
,mkt_carrier_fl_num AS flight
,origin
,dest
FROM performance
WHERE origin = 'ORD';
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I could not transfer my code to the site as I wrote it, but I placed your photo Please can you help me?
You are getting the error because you are trying to pass an uninitialized String to a Text-Widget (Naber). A Text-Widget can not handle uninitialized Strings which have the value null.
Therefore try initializing the String 'Naber' directly like:
String Naber = 'Some text';
This should work.
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I have a problem with my code. I want to update an array in my Firestore database but this method doesn't work. I want rewrite the array every time:
this code doesn't work:
List<LineupModel> newLineup = List<LineupModel>();
var playerInField1 = LineupModel(playerId: 850, position: "0-0");
var playerInField2 = LineupModel(playerId: 870, position: "1-0");
newLineup.add(playerInField1);
newLineup.add(playerInField2);
FirebaseFirestore.instance.collection("users").doc("123").update({"lineup": []});
FirebaseFirestore.instance.collection("users").doc("123").update({"lineup": FieldValue.arrayUnion(newLineup)});
If I write the object directly, the update work correctly.
FirebaseFirestore.instance.collection("users").doc("123").update({"lineup": FieldValue.arrayUnion([{"playerId": 850, "position": "0-0"}, {"playerId": 870, "position": "1-0"}])});
This code also does not work
FirebaseFirestore.instance.collection("users").doc("123").update({"lineup": newLineup});
thanks a lot!
I have a way to solved this problem. I think you cant directly passed a List of Array on arrayUnion (not sure). The way I solved this, is to iterate the list and store them one by one. Theres also a batch upload like my example
newLineup.forEach((value) async {
await FirebaseFirestore.instance.collection("users").doc("123").set({
"lineup": FieldValue.arrayUnion([
value, //Make sure this is Map<String, dynamic> so that firestore can read it
])
}, SetOptions(merge: true));
});
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I would like to answer questions such similar to these examples:
"23 jul cinema in Paris" --> returns the list of cinema shows in Paris for this date.
"23/07 cultural activities New Jersey" --> returns the list
"next week concert of classical music Spain" --> returns the list
How do I go about this? Should I use ScalaNLP, a parsing Combinator or something else?
My second question is how are date formats parsed?
Maluuba's Natural Language API may be helpful for you http://dev.maluuba.com/
It extracts important keywords and intents from sentences and returns them in an easily read format.
For the phrase "23 july cinema in Paris" the response is:
{
entities: {
dateRange: [
{
start: "2014-07-23",
end: "2014-07-24"
}
],
location: [
"paris"
],
theatre: [
"cinema"
]
},
action: "ENTERTAINMENT_MOVIE",
category: "ENTERTAINMENT"
}
It would be up to you to connect this to a movie data provider that has films for Paris.