Revert "make every row a new ID"

This reverts commit c382457.

Author: GregHanson

.gitignore

@@ -10,4 +10,3 @@ csv = "1.3.1"
 log = "0.4.22"
 oxrdf = "0.2.3"
 oxrdfio = "0.1.3"
-uuid = { version = "1.11.0", features = ["v4", "fast-rng", "macro-diagnostics"] }

Cargo.lock

@@ -18,7 +18,6 @@ use convert_case::{Case, Casing};
 use csv::ReaderBuilder;
 use log::error;
 use oxrdf::{NamedNode, TermRef, TripleRef};
-use uuid::Uuid;
 
 const C2R: &'static str = "https://decisym.ai/csv2rdf/model#";
 
@@ -80,16 +79,20 @@ pub fn parse_csv(
 
         for result in rdr.records() {
             let record = result.unwrap();
-            let id = Uuid::new_v4().hyphenated().to_string();
-            let subject = NamedNode::new(format!("{ns}{id}")).unwrap();
+            let mut row_id = "".to_string();
             column_index = 0;
             for field in record.iter() {
-                if field != "" {
+                if column_index == 0 {
+                    row_id = field.trim().replace(" ", "");
+                }
+                // do not append empty cells
+                else if field != "" {
                     let column_id = headers.get(&column_index).unwrap();
+                    let subject = NamedNode::new(format!("{}{}", ns, row_id)).unwrap();
                     let predicate = NamedNode::new(format!("{}{}", C2R, column_id)).unwrap();
                     let object = TermRef::Literal(field.into());
                     let csv_triple = TripleRef::new(subject.as_ref(), predicate.as_ref(), object);
-                    output.add_triple(csv_triple)?;
+                    output.add_triple(csv_triple)?
                 }
                 column_index += 1;
             }

Cargo.toml

@@ -16,7 +16,7 @@ fn test_graph_writer() {
     );
     assert!(res.is_ok());
 
-    assert_eq!(g.len(), 27)
+    assert_eq!(g.len(), 23)
 }
 
 #[test]
@@ -38,5 +38,5 @@ fn test_file_writer() {
         .collect::<Result<Vec<_>, _>>()
         .expect("failed to parse generated output file");
 
-    assert_eq!(quads.len(), 27)
+    assert_eq!(quads.len(), 23)
 }