Detecting Keywords

Limiting the search to only a subset of attributes

Use Case - Title or ID (SKU) searches

A good example of altering a query is with an online document library that allows keyword searches inside documents. If a user types in the word “article ref21”, they are probably signalling to the system that they are looking for an article whose title or ID contains “ref21”.

Rule

If query = “article ref21” then remove article and search for an article whose title or ID contains ‘ref21’

API

Copy

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// Turn JSON into an array
$rule = array(
  'objectID' => 'article-rule',
  'conditions' => array(array(
    'pattern' => 'article',
    'anchoring' => 'startsWith'
  )),
  'consequence' => array(
    'params' => array(
      'query' => array(
        'remove' => 'article'
      ),
      'restrictSearchableAttributes' => array(
        'title',
        'book_id'
      )
    )
  )
);

// Push Rule to index
$index->saveRule($rule);

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# Create the Rule
rule = {
  objectID: 'article-rule',
  conditions: [{
    pattern: 'article',
    anchoring: 'startsWith'
  }],
  consequence: {
    params: {
      query: {
        type: 'remove',
        delete: 'article'
      },
      restrictSearchableAttributes: ['title', 'book_id']
    }
  }
}

# Save the rule
index.save_rule(rule)

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// Create the rule
const rule = {
  objectID: 'article-rule',
  conditions: [{
    pattern: 'article',
    anchoring: 'startsWith'
  }],
  consequence: {
    params: {
      query: {
        type: 'remove',
        delete: 'article'
      },
      restrictSearchableAttributes: ['title', 'book_id']
    }
  }
};

// Save the Rule
index.saveRule(rule);

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# Create the Rule
rule = {
    'objectID': 'article-rule',
    'conditions': [{
        'pattern': 'article',
        'anchoring': 'startsWith'
    }],
    'consequence': {
        'params': {
          'query': {
            'type': 'remove',
            'delete': 'article'
          },
          'restrictSearchableAttributes': ['title', 'book_id']
        }
    }
}

# Save the Rule
response = index.save_rule(rule)

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// Create the rule
let rule = Rule(objectID: "article-id")
  .set(\.conditions, to: [
    Rule.Condition()
      .set(\.anchoring, to: .startsWith)
      .set(\.pattern, to: .literal("article"))
  ])
  .set(\.consequence, to: Rule.Consequence()
    .set(\.query, to: Query()
      .set(\.restrictSearchableAttributes, to: [
      "title",
      "book_id"
    ])
  )
)

// Save the Rule
index.saveRule(rule, forwardToReplicas: true) { result in
  if case .success(let response) = result {
    print("Response: \(response)")
  }
}

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var rule = new Rule
{
  ObjectID = "article-rule",
  Conditions = new List<Condition> { new Condition { Anchoring = "startsWith", Pattern = "article" } },
  Consequence = new Consequence
  {
    Params = new ConsequenceParams
    {
      SearchableAttributes = new List<string> { "title", "book_id" },
      Edits = new List<Edit>
      {
          new Edit {Type = EditType.Remove, Delete = "article"}
      }
    }
  }
};

index.SaveRule(rule);

// Asynchronous
await index.SaveRuleAsync(rule);

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Condition condition = new Condition().setPattern("article").setAnchoring("startsWith");
  Consequence consequence = new Consequence();
  List<Edit> edits = Collections.singletonList(new Edit().setDelete("article"));

  ConsequenceParams params = new ConsequenceParams();
  params.setRestrictSearchableAttributes(Arrays.asList("title","book_id"));
  params.setConsequenceQuery(new ConsequenceQuery().setEdits(edits));
  consequence.setParams(params);

  Rule rule =
          new Rule()
                  .setObjectID("article-rule")
                  .setConditions(Collections.singletonList(condition))
                  .setConsequence(consequence);

  index.saveRule(rule);

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rule := search.Rule{
  ObjectID:  "article-rule",
  Conditions: []search.RuleCondition{{Anchoring: search.StartsWith, Pattern: "article"}},
  Consequence: search.RuleConsequence{
    Params: &search.RuleParams{
      Query: search.NewRuleQueryObject(
        search.RuleQueryObjectQuery{
          Edits: []search.QueryEdit{
            search.RemoveEdit("article"),
          },
        },
      ),
      QueryParams: search.QueryParams{
        RestrictSearchableAttributes: opt.RestrictSearchableAttributes(
          "title",
          "book_id",
        ),
      },
    },
  },
}

res, err := index.SaveRule(rule)

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val rule = Rule(
  objectID = "article",
  conditions = Some(Seq(Condition(
    anchoring = "startsWith",
    pattern = "article",
  ))),
  consequence = Consequence(
    params = Some(
      Map(
        "query" -> Map("edits" -> Seq(Edit("delete", "article"))),
        "restrictSearchableAttributes" -> Seq("title", "book_id"),
      )
    )
  )
)

client.execute {
  save rule rule inIndex "indexName"
}

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val rules = rules {
    rule(
        "rule",
        listOf(Condition(StartsWith, Literal("article"))),
        Consequence(
            query = query {
                restrictSearchableAttributes {
                    +"title"
                    +"book_id"
                }
            },
            edits = edits { +"article" }
        )
    )
}

index.saveRules(rules)

Using the dashboard

You can also add your rules in your Algolia dashboard.

Select the Search product icon on your dashboard and then select your index.
Select the Rules section from the left sidebar menu in the Algolia dashboard.
Under the heading Rules, select the index you are adding a Rule to.
Click the New rule button.
Select Create your first rule or New rule. In the dropdown, click on the Manual Editor option.
In the Condition(s) section, keep Query toggled on, select Contains in the dropdown, and enter “article” in the input field.
In the Consequence(s) section:
- Click the Add consequence button and select Add Query Parameter.
- In the input field that appears, enter the JSON search parameter you want to add. For example, { "restrictSearchableAttributes": ["title","id"] }.
- Click the Add consequence button again and select Remove Word.
- Type or select “article” in the input field.
Don’t forget to save your changes.

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