Done fn move_one_table

src/action/move_data.rs

@@ -1,8 +1,9 @@
 use std::env::var;
-use log::info;
+use log::{error, info};
 use postgres::{Column, Row};
 use crate::action::working_database::{get_cell_value_by_column_name, get_rows};
 use crate::core::table::Table;
+use crate::database::connect;
 
 pub fn move_one_table(table_name: String) {
     let source_database_name = var("POSTGRES_DB_SOURCE").unwrap_or(String::from(""));
@@ -22,6 +23,30 @@ pub fn move_one_table(table_name: String) {
         return;
     }
 
+    // Check if the table is existed in the target database
+    let mut pg_client = connect(target_database_name.clone()).unwrap();
+    let query_check_table_existed = format!("
+        SELECT EXISTS (
+          SELECT 1
+          FROM pg_tables
+          WHERE schemaname = 'public'
+            AND tablename = '{}'
+        );", table_name);
+    let rows = match pg_client.query(&query_check_table_existed, &[]) {
+        Ok(rows) => rows,
+        Err(err) => {
+            info!("Error querying : {:?}", err);
+            return;
+        }
+    };
+    let row = rows.get(0).unwrap();
+    let is_table_existed: bool = row.get(0);
+    if !is_table_existed {
+        info!("Table: {} does not exist in the target database", table_name);
+        return;
+    }
+
+
     let mut queries: Vec<String> = Vec::new();
     // STEP 2: Insert data into target database
     for source_row in source_rows.clone() {
@@ -32,6 +57,24 @@ pub fn move_one_table(table_name: String) {
 
     // len
     info!("Queries len: {:?}", queries.len());
+    let mut failed_queries: Vec<String> = Vec::new();
+    for query in queries {
+        let mut pg_client = connect(target_database_name.clone()).unwrap();
+        info!("Query: {:?}", query);
+        match pg_client.query(&query, &[]) {
+            Ok(_) => {
+                info!("Query executed successfully");
+            }
+            Err(err) => {
+                failed_queries.push(query);
+                error!("Error querying : {:?}", err);
+            }
+        };
+    }
+
+    if failed_queries.len() > 0 {
+        info!("Failed queries: {:?}", failed_queries);
+    }
 }
 
 fn build_insert_query(table_name: &String, columns: &[Column], row: &Row) -> String {