add files

squirrel-server/src/table/datatypes.rs

@@ -0,0 +1,31 @@
+pub enum Datatype {
+    Integer,
+    CharacterVarying,
+}
+
+impl Datatype {
+    pub fn as_str(&self) -> &'static str {
+        match self {
+            Datatype::CharacterVarying => "varchar",
+            Datatype::Integer => "integer"
+        }
+    }
+
+    pub fn has_len(&self) -> bool {
+        match self {
+            Datatype::CharacterVarying => true,
+            Datatype::Integer => false
+        }
+    }
+
+    pub fn from_str(string: &str) -> Result<Datatype, String> {
+        match string {
+            "varchar" => return Ok(Datatype::CharacterVarying),
+            "character varying" => return Ok(Datatype::CharacterVarying),
+            "integer" => return Ok(Datatype::Integer),
+            "int" => return Ok(Datatype::Integer),
+            "int4" => return Ok(Datatype::Integer),
+            _ => {return Err(String::from("Undefined data type"))}
+        }
+    }
+}