Add functionality to extract a single query response

src/dbs/response.rs

@@ -11,6 +11,12 @@ pub enum Status {
 #[derive(Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize)]
 pub struct Responses(pub Vec<Response>);
 
+impl Responses {
+	pub fn first(mut self) -> Response {
+		self.0.remove(0)
+	}
+}
+
 #[derive(Clone, Debug, Eq, PartialEq, Serialize, Deserialize)]
 pub struct Response {
 	#[serde(skip_serializing_if = "Option::is_none")]
@@ -22,3 +28,27 @@ pub struct Response {
 	#[serde(skip_serializing_if = "Option::is_none")]
 	pub result: Option<Value>,
 }
+
+impl Response {
+	// Check if response succeeded
+	pub fn is_ok(&self) -> bool {
+		match self.status {
+			Status::Ok => true,
+			Status::Err => false,
+		}
+	}
+	// Check if response failed
+	pub fn is_err(&self) -> bool {
+		match self.status {
+			Status::Ok => false,
+			Status::Err => true,
+		}
+	}
+	// Retrieve the response as a result
+	pub fn output(self) -> Result<Value, String> {
+		match self.status {
+			Status::Ok => Ok(self.result.unwrap()),
+			Status::Err => Err(self.detail.unwrap()),
+		}
+	}
+}

src/sql/value/mod.rs

@@ -16,4 +16,5 @@ pub mod object;
 pub mod patch;
 pub mod replace;
 pub mod set;
+pub mod single;
 pub mod value;

src/sql/value/single.rs

@@ -0,0 +1,13 @@
+use crate::sql::value::Value;
+
+impl Value {
+	pub fn single(&self) -> &Self {
+		match self {
+			Value::Array(v) => match v.value.first() {
+				None => &Value::None,
+				Some(v) => v,
+			},
+			v => v,
+		}
+	}
+}