Occurance of two words with specific initials MongoDB
I have a collection of movies structured with title, writers, rated, actors and others fields.
I am trying to find movies with at least one actors with name and lastname starting with a C and show the title and the actors.
Actors is an array with actors (first name then last name on the same field) for example: {Matt Damon, Bradd Pitt} etc...
I tried with this :
db.movieDetails.find(
{ actors: { $regex: "^C.C" , $options: 'i' } },
{_id:0, title:1, actors:1}
);
and also with aggregation like this :
db.movieDetails.aggregate(
{$unwind: '$actors'},
{$match: { actors: { $regex: "^C.C", $options: 'i' } } },
{$group: {_id: { actors: '$actors' , title: "$title" }}}
);
But I'm just trying to avoid the problem by looking when there is an actor starting with C and another occurrence, and this solution works only partially because it returns me movies with two actors with only their first name starting with a C.
I would like to know if there is a way to use regex for example to check all words starting with something in the whole string.
javascript regex string mongodb nosql
edited Nov 27 '18 at 14:35
asemahle
8,92132731
asked Nov 27 '18 at 14:24
Raphael LopesRaphael Lopes
204
add a comment |
I have a collection of movies structured with title, writers, rated, actors and others fields.
I am trying to find movies with at least one actors with name and lastname starting with a C and show the title and the actors.
Actors is an array with actors (first name then last name on the same field) for example: {Matt Damon, Bradd Pitt} etc...
I tried with this :
db.movieDetails.find(
{ actors: { $regex: "^C.C" , $options: 'i' } },
{_id:0, title:1, actors:1}
);
and also with aggregation like this :
db.movieDetails.aggregate(
{$unwind: '$actors'},
{$match: { actors: { $regex: "^C.C", $options: 'i' } } },
{$group: {_id: { actors: '$actors' , title: "$title" }}}
);
But I'm just trying to avoid the problem by looking when there is an actor starting with C and another occurrence, and this solution works only partially because it returns me movies with two actors with only their first name starting with a C.
I would like to know if there is a way to use regex for example to check all words starting with something in the whole string.
javascript regex string mongodb nosql
edited Nov 27 '18 at 14:35
asemahle
8,92132731
asked Nov 27 '18 at 14:24
Raphael LopesRaphael Lopes
204
add a comment |
I have a collection of movies structured with title, writers, rated, actors and others fields.
I am trying to find movies with at least one actors with name and lastname starting with a C and show the title and the actors.
Actors is an array with actors (first name then last name on the same field) for example: {Matt Damon, Bradd Pitt} etc...
I tried with this :
db.movieDetails.find(
{ actors: { $regex: "^C.C" , $options: 'i' } },
{_id:0, title:1, actors:1}
);
and also with aggregation like this :
db.movieDetails.aggregate(
{$unwind: '$actors'},
{$match: { actors: { $regex: "^C.C", $options: 'i' } } },
{$group: {_id: { actors: '$actors' , title: "$title" }}}
);
But I'm just trying to avoid the problem by looking when there is an actor starting with C and another occurrence, and this solution works only partially because it returns me movies with two actors with only their first name starting with a C.
I would like to know if there is a way to use regex for example to check all words starting with something in the whole string.
javascript regex string mongodb nosql
edited Nov 27 '18 at 14:35
asemahle
8,92132731
asked Nov 27 '18 at 14:24
Raphael LopesRaphael Lopes
204
I have a collection of movies structured with title, writers, rated, actors and others fields.
I am trying to find movies with at least one actors with name and lastname starting with a C and show the title and the actors.
Actors is an array with actors (first name then last name on the same field) for example: {Matt Damon, Bradd Pitt} etc...
I tried with this :
db.movieDetails.find(
{ actors: { $regex: "^C.C" , $options: 'i' } },
{_id:0, title:1, actors:1}
);
and also with aggregation like this :
db.movieDetails.aggregate(
{$unwind: '$actors'},
{$match: { actors: { $regex: "^C.C", $options: 'i' } } },
{$group: {_id: { actors: '$actors' , title: "$title" }}}
);
But I'm just trying to avoid the problem by looking when there is an actor starting with C and another occurrence, and this solution works only partially because it returns me movies with two actors with only their first name starting with a C.
I would like to know if there is a way to use regex for example to check all words starting with something in the whole string.
javascript regex string mongodb nosql
javascript regex string mongodb nosql
edited Nov 27 '18 at 14:35
asemahle
8,92132731
asked Nov 27 '18 at 14:24
Raphael LopesRaphael Lopes
204
edited Nov 27 '18 at 14:35
asemahle
8,92132731
asked Nov 27 '18 at 14:24
Raphael LopesRaphael Lopes
204
edited Nov 27 '18 at 14:35
asemahle
8,92132731
edited Nov 27 '18 at 14:35
asemahle
8,92132731
edited Nov 27 '18 at 14:35
asemahle
8,92132731
8,92132731
asked Nov 27 '18 at 14:24
Raphael LopesRaphael Lopes
204
asked Nov 27 '18 at 14:24
Raphael LopesRaphael Lopes
204
asked Nov 27 '18 at 14:24
Raphael LopesRaphael Lopes
204
204
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
The regex that you have provided is incorrect. An explanation of ^C.C
^ - Matches the start of a line
C - Matches the character C
. - Matches any single character
C - Matches the character C
Basically, it will match any actor name where the 1st and 3rd letter are C.
Instead, try this regex: ^C.* C. Explanation:
^ - Matches the start of a line
C - Matches the character C
.* - Matches any character between zero and unlimited times
(space)C - Matches a space followed by a C (this assumes the last name is separated from the first name by a space)
Mongo code:
db.movieDetails.find({
actors: {
$regex: "^C.* C",
$options: "i"
}
});
answered Nov 27 '18 at 15:05
asemahleasemahle
8,92132731
Thanks, your solution worked perfectly and now i fully understand regex.
– Raphael Lopes
Nov 28 '18 at 7:40
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The regex that you have provided is incorrect. An explanation of ^C.C
^ - Matches the start of a line
C - Matches the character C
. - Matches any single character
C - Matches the character C
Basically, it will match any actor name where the 1st and 3rd letter are C.
Instead, try this regex: ^C.* C. Explanation:
^ - Matches the start of a line
C - Matches the character C
.* - Matches any character between zero and unlimited times
(space)C - Matches a space followed by a C (this assumes the last name is separated from the first name by a space)
Mongo code:
db.movieDetails.find({
actors: {
$regex: "^C.* C",
$options: "i"
}
});
answered Nov 27 '18 at 15:05
asemahleasemahle
8,92132731
Thanks, your solution worked perfectly and now i fully understand regex.
– Raphael Lopes
Nov 28 '18 at 7:40
add a comment |
The regex that you have provided is incorrect. An explanation of ^C.C
^ - Matches the start of a line
C - Matches the character C
. - Matches any single character
C - Matches the character C
Basically, it will match any actor name where the 1st and 3rd letter are C.
Instead, try this regex: ^C.* C. Explanation:
^ - Matches the start of a line
C - Matches the character C
.* - Matches any character between zero and unlimited times
(space)C - Matches a space followed by a C (this assumes the last name is separated from the first name by a space)
Mongo code:
db.movieDetails.find({
actors: {
$regex: "^C.* C",
$options: "i"
}
});
answered Nov 27 '18 at 15:05
asemahleasemahle
8,92132731
Thanks, your solution worked perfectly and now i fully understand regex.
– Raphael Lopes
Nov 28 '18 at 7:40
add a comment |
The regex that you have provided is incorrect. An explanation of ^C.C
^ - Matches the start of a line
C - Matches the character C
. - Matches any single character
C - Matches the character C
Basically, it will match any actor name where the 1st and 3rd letter are C.
Instead, try this regex: ^C.* C. Explanation:
^ - Matches the start of a line
C - Matches the character C
.* - Matches any character between zero and unlimited times
(space)C - Matches a space followed by a C (this assumes the last name is separated from the first name by a space)
Mongo code:
db.movieDetails.find({
actors: {
$regex: "^C.* C",
$options: "i"
}
});
answered Nov 27 '18 at 15:05
asemahleasemahle
8,92132731
The regex that you have provided is incorrect. An explanation of ^C.C
^ - Matches the start of a line
C - Matches the character C
. - Matches any single character
C - Matches the character C
Basically, it will match any actor name where the 1st and 3rd letter are C.
Instead, try this regex: ^C.* C. Explanation:
^ - Matches the start of a line
C - Matches the character C
.* - Matches any character between zero and unlimited times
(space)C - Matches a space followed by a C (this assumes the last name is separated from the first name by a space)
Mongo code:
db.movieDetails.find({
actors: {
$regex: "^C.* C",
$options: "i"
}
});
answered Nov 27 '18 at 15:05
asemahleasemahle
8,92132731
answered Nov 27 '18 at 15:05
asemahleasemahle
8,92132731
answered Nov 27 '18 at 15:05
asemahleasemahle
8,92132731
answered Nov 27 '18 at 15:05
asemahleasemahle
8,92132731
8,92132731
Thanks, your solution worked perfectly and now i fully understand regex.
– Raphael Lopes
Nov 28 '18 at 7:40
add a comment |
Thanks, your solution worked perfectly and now i fully understand regex.
– Raphael Lopes
Nov 28 '18 at 7:40
Thanks, your solution worked perfectly and now i fully understand regex.
– Raphael Lopes
Nov 28 '18 at 7:40
Thanks, your solution worked perfectly and now i fully understand regex.
– Raphael Lopes
Nov 28 '18 at 7:40
add a comment |
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