diff --git a/src/core/database.rs b/src/core/database.rs
index 63af81b0..e050be74 100644
--- a/src/core/database.rs
+++ b/src/core/database.rs
@@ -210,7 +210,7 @@ impl DataBase {
         match self.params[layer].get_mut(name) {
             Some(d) => d.set_as_array(&pos.to_string(), val),
             None    => {
-                setter::array(self, name, vec![], layer)?;
+                ArrayData::set(&mut self.params[layer], name, vec![])?;
                 self.set_layer_array_elem(name, val, layer, pos)
             },
         }
@@ -237,13 +237,15 @@ impl DataBase {
     }
 
     pub fn set_array(&mut self, name: &str, v: Vec<String>, layer: Option<usize>) -> Result<(), String> {
+        self.write_check(name)?;
         let layer = self.get_target_layer(name, layer);
-        setter::array(self, name, v, layer)
+        ArrayData::set(&mut self.params[layer], name, v)
     }
 
     pub fn set_assoc(&mut self, name: &str, layer: Option<usize>) -> Result<(), String> {
+        self.write_check(name)?;
         let layer = self.get_target_layer(name, layer);
-        setter::assoc(self, name, layer)
+        AssocData::set(&mut self.params[layer], name)
     }
 
     pub fn push_local(&mut self) {
diff --git a/src/core/database/data/array.rs b/src/core/database/data/array.rs
index 1378e156..3c3c4f51 100644
--- a/src/core/database/data/array.rs
+++ b/src/core/database/data/array.rs
@@ -12,19 +12,15 @@ pub struct ArrayData {
 impl From<Vec<String>> for ArrayData {
     fn from(v: Vec<String>) -> Self {
         let mut ans = Self { body: HashMap::new() };
-
-        for i in 0..v.len() {
-            ans.body.insert(i, v[i].clone());
-        }
-
+        v.into_iter()
+         .enumerate()
+         .for_each(|(i, e)| {ans.body.insert(i, e);});
         ans
     }
 }
 
 impl Data for ArrayData {
-    fn boxed_clone(&self) -> Box<dyn Data> {
-        Box::new(self.clone())
-    }
+    fn boxed_clone(&self) -> Box<dyn Data> { Box::new(self.clone()) }
 
     fn print_body(&self) -> String {
         let mut formatted = String::new();
@@ -69,6 +65,11 @@ impl Data for ArrayData {
 }
 
 impl ArrayData {
+    pub fn set(db_layer: &mut HashMap<String, Box<dyn Data>>, name: &str, v: Vec<String>) -> Result<(), String> {
+        db_layer.insert(name.to_string(), Box::new(ArrayData::from(v)));
+        Ok(())
+    }
+
     pub fn values(&self) -> Vec<String> {
         let mut keys: Vec<usize> = self.body.iter().map(|e| e.0.clone()).collect();
         keys.sort();
diff --git a/src/core/database/data/assoc.rs b/src/core/database/data/assoc.rs
index 040b6dbb..72b3bfee 100644
--- a/src/core/database/data/assoc.rs
+++ b/src/core/database/data/assoc.rs
@@ -59,6 +59,11 @@ impl Data for AssocData {
 }
 
 impl AssocData {
+    pub fn set(db_layer: &mut HashMap<String, Box<dyn Data>>, name: &str) -> Result<(), String> {
+        db_layer.insert(name.to_string(), Box::new(AssocData::default()));
+        Ok(())
+    }
+
     pub fn get(&self, key: &str) -> Option<String> {
         self.body.get(key).cloned()
     }
@@ -70,25 +75,4 @@ impl AssocData {
     pub fn values(&self) -> Vec<String> {
         self.body.iter().map(|e| e.1.clone()).collect()
     }
-
-    /*
-    pub fn set(&mut self, key: &String, val: &String) -> bool {
-        self.body.insert(key.to_string(), val.to_string());
-        true
-    }
-
-    pub fn print(&self, k: &str) {
-        let mut formatted = String::new();
-        formatted += "(";
-        for k in self.keys() {
-            let v = self.get(&k).unwrap_or("".to_string());
-            formatted += &format!("[{}]=\"{}\" ", k, v);
-        }
-        if formatted.ends_with(" ") {
-            formatted.pop();
-        }
-        formatted += ")";
-        println!("{}={}", k.to_string(), formatted); 
-    }
-    */
 }
diff --git a/src/core/database/setter.rs b/src/core/database/setter.rs
index 15e83d53..787f59dd 100644
--- a/src/core/database/setter.rs
+++ b/src/core/database/setter.rs
@@ -2,7 +2,6 @@
 //SPDXLicense-Identifier: BSD-3-Clause
 
 use crate::core::DataBase;
-use crate::core::database::{ArrayData, AssocData};
 use crate::utils::{random, clock};
 use std::{env, process};
 use super::getter;
@@ -35,16 +34,3 @@ pub fn flag(db: &mut DataBase, name: &str, flag: char) {
         None => {rf.insert(name.to_string(), flag.to_string()); },
     }
 }
-
-pub fn array(db: &mut DataBase, name: &str, v: Vec<String>, layer: usize) -> Result<(), String> {
-    db.write_check(name)?;
-    db.params[layer].insert(name.to_string(), Box::new(ArrayData::from(v)));
-    Ok(())
-}
-
-
-pub fn assoc(db: &mut DataBase, name: &str, layer: usize) -> Result<(), String> {
-    db.write_check(name)?;
-    db.params[layer].insert(name.to_string(), Box::new(AssocData::default()));
-    Ok(())
-}
diff --git a/test/ok b/test/ok
index dca1e47d..1bd62e29 100644
--- a/test/ok
+++ b/test/ok
@@ -6,6 +6,6 @@
 ./test_builtins.bash
 ./test_others.bash
 ./test_calculation.bash
-./test_compound.bash
 ./test_parameters.bash
+./test_compound.bash
 ./test_job.bash