steel validation in progress

server/src/table_script/handlers/post_table_script.rs

@@ -2,8 +2,29 @@
 use tonic::Status;
 use sqlx::{PgPool, Error as SqlxError};
 use common::proto::multieko2::table_script::{PostTableScriptRequest, TableScriptResponse};
-use crate::steel::handlers::evaluator::validate_target_column;
 use crate::steel::validation::script::validate_script;
+use serde_json::Value;
+
+const SYSTEM_COLUMNS: &[&str] = &["id", "deleted", "created_at"];
+
+fn validate_target_column(
+    table_name: &str,
+    target: &str,
+    table_columns: &Value,
+) -> Result<(), String> {
+    if SYSTEM_COLUMNS.contains(&target) {
+        return Err(format!("Cannot override system column: {}", target));
+    }
+
+    let columns: Vec<String> = serde_json::from_value(table_columns.clone())
+        .map_err(|e| format!("Invalid column data: {}", e))?;
+
+    if !columns.iter().any(|c| c == target) {
+        return Err(format!("Target column {} not defined in table {}", target, table_name));
+    }
+
+    Ok(())
+}
 
 pub async fn post_table_script(
     db_pool: &PgPool,