1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141

use crate::search::*;
use crate::util::*;
use serde::ser::{Serialize, SerializeMap, Serializer};

/// Returns documents that contain terms matching a wildcard pattern.
///
/// A wildcard operator is a placeholder that matches one or more characters. For example, the `*`
/// wildcard operator matches zero or more characters. You can combine wildcard operators with
/// other characters to create a wildcard pattern.
///
/// To create a wildcard query:
/// ```
/// # use elasticsearch_dsl::queries::*;
/// # use elasticsearch_dsl::queries::params::*;
/// # let query =
/// Query::wildcard("test", 123);
/// ```
/// <https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-wildcard-query.html>
#[derive(Debug, Clone, PartialEq)]
pub struct WildcardQuery {
    field: String,
    inner: Inner,
}

#[derive(Debug, Clone, PartialEq, Serialize)]
struct Inner {
    value: OptionalScalar,

    #[serde(skip_serializing_if = "ShouldSkip::should_skip")]
    rewrite: Option<Rewrite>,

    #[serde(skip_serializing_if = "ShouldSkip::should_skip")]
    case_insensitive: Option<bool>,

    #[serde(skip_serializing_if = "ShouldSkip::should_skip")]
    boost: Option<Boost>,

    #[serde(skip_serializing_if = "ShouldSkip::should_skip")]
    _name: Option<String>,
}

impl Query {
    /// Creates an instance of [`WildcardQuery`]
    ///
    /// - `field` - Field you wish to search.
    /// - `value` - Wildcard you wish to find in the provided field.
    /// To return a document, the wildcard must exactly match the field value, including whitespace and capitalization.
    pub fn wildcard(field: impl Into<String>, value: impl Into<OptionalScalar>) -> WildcardQuery {
        WildcardQuery {
            field: field.into(),
            inner: Inner {
                value: value.into(),
                rewrite: None,
                case_insensitive: None,
                boost: None,
                _name: None,
            },
        }
    }
}

impl WildcardQuery {
    /// Method used to rewrite the query. For valid values and more information, see the
    /// [rewrite](Rewrite) parameter.
    pub fn rewrite(mut self, rewrite: Rewrite) -> Self {
        self.inner.rewrite = Some(rewrite);
        self
    }

    /// Allows case insensitive matching of the pattern with the indexed field values when set to
    /// true. Default is false which means the case sensitivity of matching depends on the
    /// underlying field’s mapping.
    pub fn case_insensitive(mut self, case_insensitive: bool) -> Self {
        self.inner.case_insensitive = Some(case_insensitive);
        self
    }

    add_boost_and_name!();
}

impl ShouldSkip for WildcardQuery {
    fn should_skip(&self) -> bool {
        self.inner.value.should_skip()
    }
}

impl Serialize for WildcardQuery {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        let mut hash = std::collections::HashMap::new();
        let _ = hash.insert(&self.field, &self.inner);

        let mut map = serializer.serialize_map(Some(1))?;
        map.serialize_entry("wildcard", &hash)?;
        map.end()
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    test_serialization! {
        with_required_fields(
            Query::wildcard("test", "value*"),
            json!({
                "wildcard": {
                    "test": {
                        "value": "value*"
                    }
                }
            })
        );

        with_all_fields(
            Query::wildcard("test", "value*")
                .rewrite(Rewrite::ConstantScore)
                .case_insensitive(true)
                .boost(2)
                .name("test"),
            json!({
                "wildcard": {
                    "test": {
                        "value": "value*",
                        "rewrite": "constant_score",
                        "case_insensitive": true,
                        "boost": 2,
                        "_name": "test"
                    }
                }
            })
        );

        with_none(
            Query::bool().filter(Query::wildcard("test", None::<String>)),
            json!({ "bool": {} })
        )
    }
}