# Dynamic Template not working **URL:** \ **Category:** Elasticsearch\ **Created:** [June 11, 2019, 5:19pm UTC](https://discuss.elastic.co/t/dynamic-template-not-working/185247 "2019-06-11T17:19:43Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![jaya](https://avatars.discourse-cdn.com/v4/letter/j/22d042/32.png) [@jaya](https://discuss.elastic.co/u/jaya)\ **Post date:** [June 11, 2019, 5:19pm UTC](https://discuss.elastic.co/t/dynamic-template-not-working/185247/1 "2019-06-11T17:19:44Z")
I want to apply custom analyzer to all fields in an existing mapping to enable search with special characters. I created custom ngram analyzer and a dynamic template to apply custom\_analyzer on all text fields to do so. Search for simple text without any special character works fine But when I search for any special character within \_category field , it is returning 0 results. To test for custom\_analyzer I created a new field(email) in the mapping with analyzer and search of special characters on this email field giving me expected results. I also created a new field(phone No) without analyzer to check if dynamic\_template apply my custom\_analyzer to that phone field , But I am not getting expected results. Please suggest how dynamic\_templates work? If we can apply dynamic\_templates to existing mappings or if to a new field in existing mapping? [http://localhost:9200/audit/\_mapping](http://localhost:9200/audit/_mapping) "audit": { "mappings": { "logs": { "dynamic\_templates": [ { "ngram\_string\_analyzers": { "match": "\*", "match\_mapping\_type": "string", "mapping": { "analyzer": "custom\_analyzer", "type": "text" } } } ], "properties": { "\_category": { "type": "text", "fields": { "keyword": { "type": "keyword", "ignore\_above": 256 } } }, "\_createdOn": { "type": "date" } } } } } "audit": { "settings": { "index": { "number\_of\_shards": "5", "provided\_name": "audit", "creation\_date": "1556778930604", "analysis": { "analyzer": { "custom\_analyzer": { "type": "custom", "tokenizer": "my\_tokenizer" } }, "tokenizer": { "my\_tokenizer": { "type": "ngram", "min\_gram": "1", "max\_gram": "10" } } }, "number\_of\_replicas": "1", "version": { "created": "6040099" } } } } } ---
**Author:** ![gabriel\_tessier](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gabriel_tessier/32/27911_2.png) [@gabriel\_tessier](https://discuss.elastic.co/u/gabriel_tessier)\ **Post date:** [June 12, 2019, 1:03am UTC](https://discuss.elastic.co/t/dynamic-template-not-working/185247/2 "2019-06-12T01:03:38Z")
Hi, > [@jaya](#): > > Please suggest how dynamic\_templates work? If we can apply dynamic\_templates to existing mappings or if to a new field in existing mapping? I think the document is explicit and can help you to get the concept. > **[Dynamic templates | Elasticsearch Guide \[7.1\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/7.1/dynamic-templates.html)** About phone number mapping here a part of what I use but there's some specific things related to Japanese language, I tried to clean but just to get the concept, I copied it from somewhere but can't found back the source. ``` { "index_patterns" : "appli1_*", "order" : 1, "settings" : { "analysis" : { "filter" : { "phone_number": { "type": "pattern_capture", "preserve_original": true, "patterns": [ "\\d*" ] }, "smallest_digit": { "type": "length", "min": 6 }, "not_empty": { "type": "length", "min": 1 } }, "digits_only": { "type": "pattern_replace", "pattern": "[^\\d]" } }, "analyzer" : { "my_phone_number_analyzer" : { "char_filter": ["icu_normalizer", "digits_only"], "tokenizer": "YOUR TOKENIZER", "filter": ["phone_number", "smallest_digit"] }, "my_phone_number_search_analyzer" : { "char_filter": ["icu_normalizer", "digits_only"], "tokenizer" : "YOUR TOKENIZER", "filter" : ["not_empty"] } ``` In my case I call all my fields that have phone number with a \_number suffix ``` "mappings" : { "doc" : { "dynamic_templates" : [ {"phone_number": { "match" : "*_number", "mapping" : { "type" : "text", "fields":{ "untouched":{ "type": "keyword", "ignore_above": 256 }, "my_phone_number_analyzer":{ "type": "text", "analyzer": "my_phone_number_analyzer", "search_analyzer" : "my_phone_number_search_analyzer" }, "my_ngram_analyzer":{ "type": "text", "analyzer": "my_ngram_analyzer" } } } }} ``` Note that if you use elastic \>= 7 you need to remove the "doc" key as the type no more exist. (Not fully sure as I didn't migrate yet but you may get error if you copy paste). Found back the source it's about US number as I said before I adapt it for Japanese so depend on your case maybe you 'll better to start from the original blog post: > **[Analyzing U.S. Phone Numbers In Elasticsearch](https://khalidabuhakmeh.com/elasticsearch-indexing-of-us-phone-numbers)** > > Working with Elasticsearch and United States phone numbers can be tricky. Learn how to write analyzers that give users the best search results every time. Hope it help. ---
**Author:** ![jaya](https://avatars.discourse-cdn.com/v4/letter/j/22d042/32.png) [@jaya](https://discuss.elastic.co/u/jaya)\ **Post date:** [June 12, 2019, 4:58pm UTC](https://discuss.elastic.co/t/dynamic-template-not-working/185247/3 "2019-06-12T16:58:43Z")
Hi Gabriel, Thanks for your quick reply. But phone No field is just an example, I have around 20 text fields that can have special characters in values. So I need to apply one custom analyzer to all fields. Also My mapping is dynamic and any text field can be added later also. So I want to make sure that each new field will also contain my custom analyzer. The only way I know is using dynamic templates and it is not working in my case. So, please help me if there is any other way to implement a custom analyzer on all text fields or if you can help me in dynamic templates. ---
**Author:** ![gabriel\_tessier](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gabriel_tessier/32/27911_2.png) [@gabriel\_tessier](https://discuss.elastic.co/u/gabriel_tessier)\ **Post date:** [June 13, 2019, 1:02am UTC](https://discuss.elastic.co/t/dynamic-template-not-working/185247/4 "2019-06-13T01:02:30Z")
Sorry I didn't get your problem, let me try again. You create a field email something like "[aaa@aa.com](mailto:aaa@aa.com)" which is working because it's a string and in your template you defined ``` "ngram_string_analyzers": { "match": "*", "match_mapping_type": "string", ``` the mapping apply, no problem BUT > [@jaya](#): > > I also created a new field(phone No) without analyzer to check if dynamic\_template apply my custom\_analyzer to that phone field , But I am not getting expected results. this field is certainly 00112313213 \<-- which is not a string, but you didn't tell which mapping apply so I try to guess and it's certainly something like long. So if you try to remove the "match\_mapping\_type": "string", it will apply to all your fields if it's what you want? ---
**Author:** ![jaya](https://avatars.discourse-cdn.com/v4/letter/j/22d042/32.png) [@jaya](https://discuss.elastic.co/u/jaya)\ **Post date:** [June 13, 2019, 4:22am UTC](https://discuss.elastic.co/t/dynamic-template-not-working/185247/5 "2019-06-13T04:22:37Z")
> [@gabriel\_tessier](#): > > this field is certainly 00112313213 \<-- which is not a string, Hi Gabriel, My issue got resolved after changing the mapping of dynamic template to - "dynamic\_templates": [ { "ngram\_string\_analyzers": { "match": "\*", "match\_mapping\_type": "string", "mapping": { "analyzer": "custom\_analyzer", "fields": { "keyword": { "type": "keyword", "ignore\_above": 256 } }, "type": "text" } } } ] ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 11, 2019, 4:22am UTC](https://discuss.elastic.co/t/dynamic-template-not-working/185247/6 "2019-07-11T04:22:44Z")
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