Test and fix where method

src/lib.rs

@@ -8,10 +8,6 @@
 //!
 //! ```
 #![warn(missing_docs)]
-// Temporarily silence unused variables and uncalled code warnings
-// @TODO remove when most of the code is implemented
-#![allow(dead_code)]
-#![allow(unused_variables)]
 
 #[macro_use]
 extern crate lazy_static;

src/query_builder.rs

@@ -656,7 +656,7 @@ impl QueryBuilder {
         let keys = self._where(key, vec![value]);
 
         for k in keys {
-            self._where_string_key(key, conj);
+            self._where_string_key(&k, conj);
         }
 
         self
@@ -664,9 +664,8 @@ impl QueryBuilder {
 
     fn _where_string_key(&mut self, key: &str, conj: &str) {
         let field = key.trim().split(" ").collect::<Vec<&str>>();
-        let query_map = self.state.get_query_map();
 
-        let last_item = &query_map[query_map.len() - 1];
+        let last_item = self.state.get_query_map_last();
         let mut item = self.driver.quote_identifier(field[0]);
 
         let item2 = if field.len() == 1 {
@@ -677,8 +676,13 @@ impl QueryBuilder {
 
         item += &item2;
 
-        let conj = if last_item.clause_type == QueryClauseType::GroupStart {
-            String::from("")
+        let conj = if last_item.is_some() {
+            let last_item = last_item.unwrap();
+
+            match last_item.clause_type {
+                QueryClauseType::GroupStart => String::from(""),
+                _ => format!(" {} ", conj)
+            }
         } else {
             format!(" {} ", conj)
         };
@@ -933,6 +937,16 @@ impl QueryState {
         &self.query_map
     }
 
+    pub fn get_query_map_last(&self) -> Option<&QueryClause> {
+        if self.query_map.len() == 0 {
+            return None
+        }
+
+        let index = self.query_map.len() - 1;
+
+        Some(&self.query_map[index])
+    }
+
     pub fn get_select_string(&self) -> &str {
         &self.select_string
     }

tests/integration_test.rs

@@ -47,6 +47,19 @@ fn select_without_from() {
     qb.get_compiled_select();
 }
 
+#[test]
+fn select_where() {
+    let mut qb = QueryBuilder::default();
+
+    qb.from("test")
+        .r#where("foo", "bar");
+
+    let sql = qb.get_compiled_select();
+    let expected = "SELECT *\nFROM \"test\" WHERE \"foo\"=?";
+
+    assert_eq!(sql, expected);
+}
+
 #[test]
 fn select_where_in() {
     let mut qb = QueryBuilder::default();