@@ -21,21 +21,21 @@ async fn main() -> mongodb::error::Result<()> {
2121 let filter = doc ! { "name" : "xxx" } ;
2222 // begin-find-delete-options
2323 let opts = FindOneAndDeleteOptions :: builder ( ) . comment ( bson ! ( "hello" ) ) . build ( ) ;
24- let _res = my_coll. find_one_and_delete ( filter, opts) . await ?;
24+ let res = my_coll. find_one_and_delete ( filter, opts) . await ?;
2525 // end-find-delete-options
2626
2727 // begin-find_one_and_delete
2828 let filter = doc ! { "age" : doc! { "$lte" : 10 } } ;
2929
3030 let res = my_coll. find_one_and_delete ( filter, None ) . await ?;
31- println ! ( "Deleted document:\n {}" , serde_json :: to_string_pretty ( & res) . unwrap ( ) ) ;
31+ println ! ( "Deleted document:\n {:? }" , res) ;
3232 // end-find_one_and_delete
3333
3434 let filter = doc ! { "name" : "xxx" } ;
3535 let update = doc ! { "$set" : doc! { "check" : true } } ;
3636 // begin-find-update-options
3737 let opts = FindOneAndUpdateOptions :: builder ( ) . comment ( bson ! ( "hello" ) ) . build ( ) ;
38- let _res = my_coll. find_one_and_update ( filter, update, opts) . await ?;
38+ let res = my_coll. find_one_and_update ( filter, update, opts) . await ?;
3939 // end-find-update-options
4040
4141 // begin-find_one_and_update
@@ -48,14 +48,14 @@ async fn main() -> mongodb::error::Result<()> {
4848 . build ( ) ;
4949
5050 let res = my_coll. find_one_and_update ( filter, update, opts) . await ?;
51- println ! ( "Updated document:\n {}" , serde_json :: to_string_pretty ( & res) . unwrap ( ) ) ;
51+ println ! ( "Updated document:\n {:? }" , res) ;
5252 // end-find_one_and_update
5353
5454 let filter = doc ! { "name" : "xxx" } ;
5555 let replacement = doc ! { "name" : "yyy" , "age" : 10 } ;
5656 // begin-find-replace-options
5757 let opts = FindOneAndReplaceOptions :: builder ( ) . comment ( bson ! ( "hello" ) ) . build ( ) ;
58- let _res = my_coll. find_one_and_replace ( filter, replacement, opts) . await ?;
58+ let res = my_coll. find_one_and_replace ( filter, replacement, opts) . await ?;
5959 // end-find-replace-options
6060
6161 // begin-find_one_and_replace
@@ -70,7 +70,7 @@ async fn main() -> mongodb::error::Result<()> {
7070 . build ( ) ;
7171
7272 let res = my_coll. find_one_and_replace ( filter, replacement, opts) . await ?;
73- println ! ( "Document after replacement:\n {}" , serde_json :: to_string_pretty ( & res) . unwrap ( ) ) ;
73+ println ! ( "Document after replacement:\n {:? }" , res) ;
7474 // end-find_one_and_replace
7575
7676 Ok ( ( ) )
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