how to create examine autocomplete - Extending Umbraco and using the API

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Marky 26 posts 65 karma points

Nov 19, 2018 @ 10:17

How to create Examine AutoComplete ?

Hi, Good day!

I would like a autocomplete function with Examine, which should work in a way that when I write "What is" it suggests

"What is Piering " "What is soil testing" "What is roof sarking?"

But what I've done is when I write "What is" it suggests all my posts that starts the word "What". See screenshot below.

Here is my code;

[System.Web.Http.HttpPost]
public List<Article> GetArticles(SearchArticleModel model)
{
    var result = new List<Article>();

    if (!string.IsNullOrEmpty(model.Article))
    {
        var searcher = ExamineManager.Instance.SearchProviderCollection["ExternalSearcher"];
        var searchCriteria = searcher.CreateSearchCriteria();

        // Find posts that contain our search text in either nodeName or title
        var searchQuery = searchCriteria.Field("nodeName", model.Article.Boost(8)).Or().Field("title", model.Article.Boost(5)).Compile();

        var searchResults = searcher.Search(searchQuery);

        foreach (var searchResult in searchResults)
        {
            var articles = new Article()
            {
                Id = Convert.ToInt32(searchResult.Id),
                Name = searchResult.Fields["title"],
            };

            articles.Url = articles.Id.TypedContent().Url ?? string.Empty;

            result.Add(articles);
        }

        return result;
    }

    return result;
}

Did I miss something?

Any ideas or snippet

Thanks,

Marky

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Ismail Mayat 4511 posts 10092 karma points MVP 2x admin c-trib

Nov 19, 2018 @ 10:55

0

Marky,

Can you write out the generated query I suspect the word 'is' is being stripped out as it is a stop word and you are using standard analyser.

Regards

Ismail

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Marky 26 posts 65 karma points

Nov 20, 2018 @ 03:26

0

Hi Ismail,

Thanks for your response.

I am new in Umbraco, can you tell me how I can generate the query?

Thanks,

Marky

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Marky 26 posts 65 karma points

Nov 20, 2018 @ 05:21
0
Hi Ismail,

It might be the query?
```
{ SearchIndexType: , LuceneQuery: nodeName:what^8.0 title:what^5.0 }
```
Thanks,

Marky
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Ismail Mayat 4511 posts 10092 karma points MVP 2x admin c-trib

Nov 20, 2018 @ 08:41

0

you can see its stripping stop word "is" proof of this can be seen by using luke see image below:

I have done auto complete before but matching on single words, it was a combination of building a spellchecker index then doing the auto complete search on that. See on how to build spellchecker index http://blog.aabech.no/archive/building-a-spell-checker-for-search-in-umbraco/ you then have to create an autocomplete analyser that creates ngrams and you then search on that index. I used this stackoverflow post to get to that point https://stackoverflow.com/questions/120180/how-to-do-query-auto-completion-suggestions-in-lucene specifically this part which is c# port of some java code https://stackoverflow.com/a/9183416/719625

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Marky 26 posts 65 karma points

Nov 20, 2018 @ 09:02

0

Hi Ismail,

Thanks for your help, I will look into it.

Regards,

Marky

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Marky 26 posts 65 karma points

Jan 03, 2019 @ 03:54
0
Hi Ismail,

Here is what I've done, I add MultipleCharacterWildcard() because I read in your post regarding this extension. Link.
```
// Find posts that contain our search text in title
searchCriteria.NodeTypeAlias("StandardContent").And().Field("title", model.Article.MultipleCharacterWildcard()).Compile();
```
Here is the update query
```
{ SearchIndexType: , LuceneQuery: +__NodeTypeAlias:standardcontent +title:what is* }
```
But I got no results.
```
[]
```
But here is the data that suppose to be displayed.
```
What is Piering?
What is soil testing?
What is roof sarking?
```
But still no luck, and don't know what's the next step.

Thanks

Marky
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Ismail Mayat 4511 posts 10092 karma points MVP 2x admin c-trib

Jan 03, 2019 @ 10:06

0

Marky,

Its not wildcard issue, did you take a look at my previous post with links on how to implement autocomplete? Also I only got it working single word.

Regards

Ismail

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Marky 26 posts 65 karma points

Jan 04, 2019 @ 01:44

0

Hi Ismail,

Thanks for your reply.

I haven't read your post regarding on how to implement autocomplete, can you give the link? I really need help for this, since I'm new in Umbraco.

Can you give me some ideas or what is the exact query to get the whole phrase, because as I read in other blogs that when *symbol is in the last it means, it will show all post that starts whatever you've enter on the search box. e.g. title:foo *

I'm stuck on this.

Thanks,

Marky

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Ismail Mayat 4511 posts 10092 karma points MVP 2x admin c-trib

Jan 04, 2019 @ 08:59

0

this earlier post https://our.umbraco.com/forum/extending-umbraco-and-using-the-api/94672-how-to-create-examine-autocomplete#comment-299482

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Marky 26 posts 65 karma points

Jan 05, 2019 @ 03:19

0

Ohh, Okay.

This can't be done by using only Examine Search?

Thanks,

Marky

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Marky 26 posts 65 karma points

Jan 08, 2019 @ 06:48

0

Hey Ismail,

Last question, can you tell me where I can create this spellchecker public class SpellCheckIndexer : BaseUmbracoIndexer. I am really new in Umbraco, and I don't know where I can create this stuff.

Thanks in advance,

Marky

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