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checking if your elemMatch regex conditions work
A comprehensive regex for phone number validationRegEx to make sure that the string contains at least one lower case char, upper case char, digit and symbolRegEx match open tags except XHTML self-contained tagsCheck whether a string matches a regex in JSMongo take advantage of indexing when doing $elemMatch with regex“Large data” work flows using pandasMongoDB $elemMatch issuemongodb $elemMatch $inelemMatch query does not work in phpCan $elemMatch and $in correctly work together?
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
I have a MongoDB query:
db.list.find(categories:$elemMatch: "$regex":".*Bar.*", $not:/^Barbeque/).pretty()
where it looks at the elements in the categories array and I think gets all documents where there is an element that contains "Bar" but none that contain "Barbecue". How to I check make sure that my query is correct?
Let me know if my query is wrong and how I could fix it.
regex mongodb
asked Mar 25 at 1:09
tom dinhtom dinh
2016
add a comment |
I have a MongoDB query:
db.list.find(categories:$elemMatch: "$regex":".*Bar.*", $not:/^Barbeque/).pretty()
where it looks at the elements in the categories array and I think gets all documents where there is an element that contains "Bar" but none that contain "Barbecue". How to I check make sure that my query is correct?
Let me know if my query is wrong and how I could fix it.
regex mongodb
asked Mar 25 at 1:09
tom dinhtom dinh
2016
add a comment |
I have a MongoDB query:
db.list.find(categories:$elemMatch: "$regex":".*Bar.*", $not:/^Barbeque/).pretty()
where it looks at the elements in the categories array and I think gets all documents where there is an element that contains "Bar" but none that contain "Barbecue". How to I check make sure that my query is correct?
Let me know if my query is wrong and how I could fix it.
regex mongodb
asked Mar 25 at 1:09
tom dinhtom dinh
2016
I have a MongoDB query:
db.list.find(categories:$elemMatch: "$regex":".*Bar.*", $not:/^Barbeque/).pretty()
where it looks at the elements in the categories array and I think gets all documents where there is an element that contains "Bar" but none that contain "Barbecue". How to I check make sure that my query is correct?
Let me know if my query is wrong and how I could fix it.
regex mongodb
regex mongodb
asked Mar 25 at 1:09
tom dinhtom dinh
2016
asked Mar 25 at 1:09
tom dinhtom dinh
2016
asked Mar 25 at 1:09
tom dinhtom dinh
2016
asked Mar 25 at 1:09
tom dinhtom dinh
2016
asked Mar 25 at 1:09
tom dinhtom dinh
2016
2016
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You should specify the end of string like this:
$not:/^Barbeque$/
rather than
$not:/^Barbeque/
because if any of file contains (i.e. "Barbequee"), it must return to your query result.
about make sure that my query is correct or not, i have no idea. But if your query is correct, mongo must return the value that matches the written query.
if something goes wrong, it must be that the logic in the query that results in mongo returns an unexpected value for you.
so check your query before you run it. :D
answered Mar 25 at 8:27
Ilham Naki AnsIlham Naki Ans
1
add a comment |
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1 Answer
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active
oldest
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active
oldest
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active
oldest
votes
You should specify the end of string like this:
$not:/^Barbeque$/
rather than
$not:/^Barbeque/
because if any of file contains (i.e. "Barbequee"), it must return to your query result.
about make sure that my query is correct or not, i have no idea. But if your query is correct, mongo must return the value that matches the written query.
if something goes wrong, it must be that the logic in the query that results in mongo returns an unexpected value for you.
so check your query before you run it. :D
answered Mar 25 at 8:27
Ilham Naki AnsIlham Naki Ans
1
add a comment |
You should specify the end of string like this:
$not:/^Barbeque$/
rather than
$not:/^Barbeque/
because if any of file contains (i.e. "Barbequee"), it must return to your query result.
about make sure that my query is correct or not, i have no idea. But if your query is correct, mongo must return the value that matches the written query.
if something goes wrong, it must be that the logic in the query that results in mongo returns an unexpected value for you.
so check your query before you run it. :D
answered Mar 25 at 8:27
Ilham Naki AnsIlham Naki Ans
1
add a comment |
You should specify the end of string like this:
$not:/^Barbeque$/
rather than
$not:/^Barbeque/
because if any of file contains (i.e. "Barbequee"), it must return to your query result.
about make sure that my query is correct or not, i have no idea. But if your query is correct, mongo must return the value that matches the written query.
if something goes wrong, it must be that the logic in the query that results in mongo returns an unexpected value for you.
so check your query before you run it. :D
answered Mar 25 at 8:27
Ilham Naki AnsIlham Naki Ans
1
You should specify the end of string like this:
$not:/^Barbeque$/
rather than
$not:/^Barbeque/
because if any of file contains (i.e. "Barbequee"), it must return to your query result.
about make sure that my query is correct or not, i have no idea. But if your query is correct, mongo must return the value that matches the written query.
if something goes wrong, it must be that the logic in the query that results in mongo returns an unexpected value for you.
so check your query before you run it. :D
answered Mar 25 at 8:27
Ilham Naki AnsIlham Naki Ans
1
answered Mar 25 at 8:27
Ilham Naki AnsIlham Naki Ans
1
answered Mar 25 at 8:27
Ilham Naki AnsIlham Naki Ans
1
answered Mar 25 at 8:27
Ilham Naki AnsIlham Naki Ans
1
1
add a comment |
add a comment |
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