Merge #598

598: Add frequency to matchingStrategy r=irevoire a=NoodleSamaChan

# Pull Request

## Related issue
Fixes #594

## What does this PR do?
Fixes #594
I also corrected a small typo in the test for LAST

## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [x] Have you made sure that the title is accurate and descriptive of the changes?

Thank you so much for contributing to Meilisearch!


Co-authored-by: NoodleSamaChan <[email protected]>

Author: meili-bors[bot]

.code-samples.meilisearch.yaml

@@ -903,6 +903,15 @@ search_parameter_guide_matching_strategy_2: |-
   .execute()
   .await
   .unwrap();
+search_parameter_guide_matching_strategy_3: |-
+  let results: SearchResults<Movie> = client
+  .index("movies")
+  .search()
+  .with_query("white shirt")
+  .with_matching_strategy(MatchingStrategies::FREQUENCY)
+  .execute()
+  .await
+  .unwrap();
 search_parameter_guide_hitsperpage_1: |-
   client.index("movies").search().with_hits_per_page(15).execute().await?;
 search_parameter_guide_page_1: |-

src/search.rs

@@ -32,6 +32,8 @@ pub enum MatchingStrategies {
     ALL,
     #[serde(rename = "last")]
     LAST,
+    #[serde(rename = "frequency")]
+    FREQUENCY,
 }
 
 /// A single result.
@@ -1151,7 +1153,7 @@ mod tests {
     }
 
     #[meilisearch_test]
-    async fn test_matching_strategy_left(client: Client, index: Index) -> Result<(), Error> {
+    async fn test_matching_strategy_last(client: Client, index: Index) -> Result<(), Error> {
         setup_test_index(&client, &index).await?;
 
         let results = SearchQuery::new(&index)
@@ -1165,6 +1167,21 @@ mod tests {
         Ok(())
     }
 
+    #[meilisearch_test]
+    async fn test_matching_strategy_frequency(client: Client, index: Index) -> Result<(), Error> {
+        setup_test_index(&client, &index).await?;
+
+        let results = SearchQuery::new(&index)
+            .with_query("Harry Styles")
+            .with_matching_strategy(MatchingStrategies::FREQUENCY)
+            .execute::<Document>()
+            .await
+            .unwrap();
+
+        assert_eq!(results.hits.len(), 7);
+        Ok(())
+    }
+
     #[meilisearch_test]
     async fn test_generate_tenant_token_from_client(
         client: Client,