13 files changed, 0 insertions, 620 deletions
diff --git a/rust/schist_queries/src/account_transfers.rs b/rust/schist_queries/src/account_transfers.rs
deleted file mode 100644
index 070bdc3..0000000
--- a/rust/schist_queries/src/account_transfers.rs
+++ /dev/null
@@ -1,40 +0,0 @@
-use anyhow::{Context, Result};
-use diesel::{QueryDsl, RunQueryDsl, SelectableHelper, SqliteConnection};
-use schist_models::account_transfer::AccountTransfer;
-use schist_schema::schema::account_transfers::dsl::account_transfers as account_transfers_table;
-
-pub fn delete_all_account_transfers(connection: &mut SqliteConnection) -> Result<usize> {
-    let num_rows_deleted = diesel::delete(account_transfers_table)
-        .execute(connection)
-        .with_context(|| "failed to delete all account_transfers")?;
-    Ok(num_rows_deleted)
-}
-
-pub fn get_all_account_transfers(connection: &mut SqliteConnection) -> Result<Vec<AccountTransfer>> {
-    let all_account_transfers = account_transfers_table.select(AccountTransfer::as_select())
-        .load(connection)
-        .with_context(|| "failed to get all account transfers")?;
-    Ok(all_account_transfers)
-}
-
-pub fn insert_account_transfers(
-    account_transfers: &[AccountTransfer],
-    connection: &mut SqliteConnection,
-) -> Result<usize> {
-    let num_account_transfers_inserted = diesel::insert_into(account_transfers_table)
-        .values(account_transfers)
-        .execute(connection)
-        .with_context(|| insert_err_msg(account_transfers))?;
-    Ok(num_account_transfers_inserted)
-}
-
-fn insert_err_msg(account_transfers: &[AccountTransfer]) -> String {
-    format!(
-        "failed to insert account transfers: [{}]",
-        account_transfers
-            .iter()
-            .map(|a| a.id.to_string())
-            .collect::<Vec<String>>()
-            .join(", ")
-    )
-}
diff --git a/rust/schist_queries/src/accounts.rs b/rust/schist_queries/src/accounts.rs
deleted file mode 100644
index ead281a..0000000
--- a/rust/schist_queries/src/accounts.rs
+++ /dev/null
@@ -1,40 +0,0 @@
-use anyhow::{Context, Result};
-use diesel::{QueryDsl, RunQueryDsl, SelectableHelper, SqliteConnection};
-use schist_models::account::Account;
-use schist_schema::schema::accounts::dsl::accounts as accounts_table;
-
-pub fn delete_all_accounts(connection: &mut SqliteConnection) -> Result<usize> {
-    let num_rows_deleted = diesel::delete(accounts_table)
-        .execute(connection)
-        .with_context(|| "failed to delete all accounts")?;
-    Ok(num_rows_deleted)
-}
-
-pub fn get_all_accounts(connection: &mut SqliteConnection) -> Result<Vec<Account>> {
-    let all_accounts = accounts_table.select(Account::as_select())
-        .load(connection)
-        .with_context(|| "failed to get all accounts")?;
-    Ok(all_accounts)
-}
-
-pub fn insert_accounts(
-    accounts: &[Account],
-    connection: &mut SqliteConnection,
-) -> Result<usize> {
-    let num_accounts_inserted = diesel::insert_into(accounts_table)
-        .values(accounts)
-        .execute(connection)
-        .with_context(|| insert_err_msg(accounts))?;
-    Ok(num_accounts_inserted)
-}
-
-fn insert_err_msg(accounts: &[Account]) -> String {
-    format!(
-        "failed to insert accounts: [{}]",
-        accounts
-            .iter()
-            .map(|a| format!("\"{}\": \"{}\"", a.id, a.name))
-            .collect::<Vec<String>>()
-            .join(", ")
-    )
-}
diff --git a/rust/schist_queries/src/budget_drips.rs b/rust/schist_queries/src/budget_drips.rs
deleted file mode 100644
index b6f9372..0000000
--- a/rust/schist_queries/src/budget_drips.rs
+++ /dev/null
@@ -1,40 +0,0 @@
-use anyhow::{Context, Result};
-use diesel::{QueryDsl, RunQueryDsl, SelectableHelper, SqliteConnection};
-use schist_models::budget_drip::BudgetDrip;
-use schist_schema::schema::budget_drips::dsl::budget_drips as budget_drips_table;
-
-pub fn delete_all_budget_drips(connection: &mut SqliteConnection) -> Result<usize> {
-    let num_rows_deleted = diesel::delete(budget_drips_table)
-        .execute(connection)
-        .with_context(|| "failed to delete all budget drips")?;
-    Ok(num_rows_deleted)
-}
-
-pub fn get_all_budget_drips(connection: &mut SqliteConnection) -> Result<Vec<BudgetDrip>> {
-    let all_budget_drips = budget_drips_table.select(BudgetDrip::as_select())
-        .load(connection)
-        .with_context(|| "failed to get all budget drips")?;
-    Ok(all_budget_drips)
-}
-
-pub fn insert_budget_drips(
-    budget_drips: &[BudgetDrip],
-    connection: &mut SqliteConnection,
-) -> Result<usize> {
-    let num_budget_drips_inserted = diesel::insert_into(budget_drips_table)
-        .values(budget_drips)
-        .execute(connection)
-        .with_context(|| insert_err_msg(budget_drips))?;
-    Ok(num_budget_drips_inserted)
-}
-
-fn insert_err_msg(budget_drips: &[BudgetDrip]) -> String {
-    format!(
-        "failed to insert budget drips: [{}]",
-        budget_drips
-            .iter()
-            .map(|a| a.id.to_string())
-            .collect::<Vec<String>>()
-            .join(", ")
-    )
-}
diff --git a/rust/schist_queries/src/categories.rs b/rust/schist_queries/src/categories.rs
deleted file mode 100644
index f4a9747..0000000
--- a/rust/schist_queries/src/categories.rs
+++ /dev/null
@@ -1,49 +0,0 @@
-use anyhow::{Context, Result};
-use diesel::{QueryDsl, RunQueryDsl, SelectableHelper, SqliteConnection};
-use schist_models::category::Category;
-use schist_schema::schema::categories::{self as categories_schema, dsl::categories as categories_table};
-
-pub fn delete_all_categories(connection: &mut SqliteConnection) -> Result<usize> {
-    let num_rows_deleted = diesel::delete(categories_table)
-        .execute(connection)
-        .with_context(|| "failed to delete all categories")?;
-    Ok(num_rows_deleted)
-}
-
-pub fn get_all_categories(connection: &mut SqliteConnection) -> Result<Vec<Category>> {
-    let all_categories = categories_table
-        .select(Category::as_select())
-        .load(connection)
-        .with_context(|| "failed to get all categories")?;
-    Ok(all_categories)
-}
-
-pub fn get_all_category_ids(connection: &mut SqliteConnection) -> Result<Vec<i32>> {
-    let all_category_ids = categories_table
-        .select(categories_schema::id)
-        .load(connection)
-        .with_context(|| "failed to get all category IDs")?;
-    Ok(all_category_ids)
-}
-
-pub fn insert_categories(
-    categories: &[Category],
-    connection: &mut SqliteConnection,
-) -> Result<usize> {
-    let num_categories_inserted = diesel::insert_into(categories_table)
-        .values(categories)
-        .execute(connection)
-        .with_context(|| insert_err_msg(categories))?;
-    Ok(num_categories_inserted)
-}
-
-fn insert_err_msg(categories: &[Category]) -> String {
-    format!(
-        "failed to insert categories: [{}]",
-        categories
-            .iter()
-            .map(|c| format!("\"{}\": \"{}\"", c.id, c.name))
-            .collect::<Vec<String>>()
-            .join(", ")
-    )
-}
diff --git a/rust/schist_queries/src/category_transfers.rs b/rust/schist_queries/src/category_transfers.rs
deleted file mode 100644
index 33a53ea..0000000
--- a/rust/schist_queries/src/category_transfers.rs
+++ /dev/null
@@ -1,74 +0,0 @@
-use anyhow::{Context, Result};
-use diesel::{dsl::sum, QueryDsl, RunQueryDsl, SelectableHelper, SqliteConnection};
-use schist_schema::schema::category_transfers::{
-    self as category_transfers_schema,
-    dsl::category_transfers as category_transfers_table,
-};
-use schist_models::category_transfer::CategoryTransfer;
-
-pub fn delete_all_category_transfers(connection: &mut SqliteConnection) -> Result<usize> {
-    let num_rows_deleted = diesel::delete(category_transfers_table)
-        .execute(connection)
-        .with_context(|| "failed to delete all category transfers")?;
-    Ok(num_rows_deleted)
-}
-
-pub fn get_all_category_transfers(connection: &mut SqliteConnection) -> Result<Vec<CategoryTransfer>> {
-    let all_category_transfers = category_transfers_table
-        .select(CategoryTransfer::as_select())
-        .load(connection)
-        .with_context(|| "failed to get all category transfers")?;
-    Ok(all_category_transfers)
-}
-
-pub fn insert_category_transfers(
-    category_transfers: &[CategoryTransfer],
-    connection: &mut SqliteConnection,
-) -> Result<usize> {
-    let num_rows_inserted = diesel::insert_into(category_transfers_table)
-        .values(category_transfers)
-        .execute(connection)
-        .with_context(|| insert_err_msg(&category_transfers))?;
-    Ok(num_rows_inserted)
-}
-
-fn insert_err_msg(category_transfers: &[CategoryTransfer]) -> String {
-    format!(
-        "failed to insert category transfers: [{}]",
-        category_transfers
-            .iter()
-            .map(|ct| ct.id.to_string())
-            .collect::<Vec<String>>()
-            .join(", ")
-    )
-}
-
-pub fn sum_category_transfer_quantity_per_from_category_id(
-    connection: &mut SqliteConnection,
-) -> Result<Vec<(i32, i64)>> {
-    let sum = category_transfers_table
-        .group_by(category_transfers_schema::from_category_id)
-        .select((
-            category_transfers_schema::from_category_id,
-            sum(category_transfers_schema::quantity),
-        ))
-        .load::<(i32, Option<i64>)>(connection)
-        .map(|result| result.iter().map(|sum| (sum.0, sum.1.unwrap_or(0))).collect())
-        .with_context(|| "failed to sum category transfer quantity per from category ID")?;
-    Ok(sum)
-}
-
-pub fn sum_category_transfer_quantity_per_to_category_id(
-    connection: &mut SqliteConnection,
-) -> Result<Vec<(i32, i64)>> {
-    let sum = category_transfers_table
-        .group_by(category_transfers_schema::to_category_id)
-        .select((
-            category_transfers_schema::to_category_id,
-            sum(category_transfers_schema::quantity),
-        ))
-        .load::<(i32, Option<i64>)>(connection)
-        .map(|vec| vec.iter().map(|(id, sum)| (*id, sum.unwrap_or(0))).collect())
-        .with_context(|| "failed to sum category transfer quantity per to category ID")?;
-    Ok(sum)
-}
diff --git a/rust/schist_queries/src/clear.rs b/rust/schist_queries/src/clear.rs
deleted file mode 100644
index 7cee699..0000000
--- a/rust/schist_queries/src/clear.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-use anyhow::Result;
-use diesel::SqliteConnection;
-
-use crate::{
-    accounts::delete_all_accounts, budget_drips::delete_all_budget_drips, categories::delete_all_categories, category_transfers::delete_all_category_transfers, transaction_categorisations::delete_all_transaction_categorisations, transactions::delete_all_transactions
-};
-
-pub fn clear(connection: &mut SqliteConnection) -> Result<()> {
-    delete_all_accounts(connection)?;
-    delete_all_budget_drips(connection)?;
-    delete_all_categories(connection)?;
-    delete_all_category_transfers(connection)?;
-    delete_all_transactions(connection)?;
-    delete_all_transaction_categorisations(connection)?;
-    Ok(())
-}
diff --git a/rust/schist_queries/src/lib.rs b/rust/schist_queries/src/lib.rs
deleted file mode 100644
index a1a5c20..0000000
--- a/rust/schist_queries/src/lib.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-pub mod accounts;
-pub mod account_transfers;
-pub mod budget_drips;
-pub mod categories;
-pub mod category_transfers;
-pub mod clear;
-pub mod transactions;
-pub mod transaction_categorisations;
-
-mod utils;
diff --git a/rust/schist_queries/src/transaction_categorisations.rs b/rust/schist_queries/src/transaction_categorisations.rs
deleted file mode 100644
index 320782d..0000000
--- a/rust/schist_queries/src/transaction_categorisations.rs
+++ /dev/null
@@ -1,59 +0,0 @@
-use anyhow::{Context, Result};
-use diesel::{dsl::sum, QueryDsl, RunQueryDsl, SelectableHelper, SqliteConnection};
-use schist_models::transaction_categorisation::TransactionCategorisation;
-use schist_schema::schema::transaction_categorisations::{
-    self as transaction_categorisations_schema,
-    dsl::transaction_categorisations as transaction_categorisations_table,
-};
-
-pub fn delete_all_transaction_categorisations(connection: &mut SqliteConnection) -> Result<usize> {
-    let num_rows_deleted = diesel::delete(transaction_categorisations_table)
-        .execute(connection)
-        .with_context(|| "failed to delete all transaction categorisations")?;
-    Ok(num_rows_deleted)
-}
-
-pub fn get_all_transaction_categorisations(connection: &mut SqliteConnection) -> Result<Vec<TransactionCategorisation>> {
-    let all_transaction_categorisations = transaction_categorisations_table
-        .select(TransactionCategorisation::as_select())
-        .load(connection)
-        .with_context(|| "failed to get all transaction categorisations")?;
-    Ok(all_transaction_categorisations)
-}
-
-pub fn insert_transaction_categorisations(
-    transaction_categorisations: &[TransactionCategorisation],
-    connection: &mut SqliteConnection,
-) -> Result<usize> {
-    let num_rows_inserted = diesel::insert_into(transaction_categorisations_table)
-        .values(transaction_categorisations)
-        .execute(connection)
-        .with_context(|| insert_err_msg(&transaction_categorisations))?;
-    Ok(num_rows_inserted)
-}
-
-fn insert_err_msg(transaction_categorisations: &[TransactionCategorisation]) -> String {
-    format!(
-        "failed to insert transaction categorisations: [{}]",
-        transaction_categorisations
-            .iter()
-            .map(|tc| tc.id.to_string())
-            .collect::<Vec<String>>()
-            .join(", ")
-    )
-}
-
-pub fn sum_transaction_categorisation_quantity_per_category_id(
-    connection: &mut SqliteConnection,
-) -> Result<Vec<(i32, i64)>> {
-    let sum = transaction_categorisations_table
-        .group_by(transaction_categorisations_schema::category_id)
-        .select((
-            transaction_categorisations_schema::category_id,
-            sum(transaction_categorisations_schema::quantity),
-        ))
-        .load::<(i32, Option<i64>)>(connection)
-        .map(|vec| vec.iter().map(|(category_id, sum)| (*category_id, sum.unwrap_or(0))).collect())
-        .with_context(|| "failed to sum transaction categorisation quantity per category ID")?;
-    Ok(sum)
-}
diff --git a/rust/schist_queries/src/transactions.rs b/rust/schist_queries/src/transactions.rs
deleted file mode 100644
index 70b14e7..0000000
--- a/rust/schist_queries/src/transactions.rs
+++ /dev/null
@@ -1,41 +0,0 @@
-use anyhow::{Context, Result};
-use diesel::{QueryDsl, RunQueryDsl, SelectableHelper, SqliteConnection};
-use schist_models::transaction::Transaction;
-use schist_schema::schema::transactions::dsl::transactions as transactions_table;
-
-pub fn delete_all_transactions(connection: &mut SqliteConnection) -> Result<usize> {
-    let num_rows_deleted = diesel::delete(transactions_table)
-        .execute(connection)
-        .with_context(|| "failed to delete all transactions")?;
-    Ok(num_rows_deleted)
-}
-
-pub fn get_all_transactions(connection: &mut SqliteConnection) -> Result<Vec<Transaction>> {
-    let all_transactions = transactions_table
-        .select(Transaction::as_select())
-        .load(connection)
-        .with_context(|| "failed to get all category transfers")?;
-    Ok(all_transactions)
-}
-
-pub fn insert_transactions(
-    transactions: &[Transaction],
-    connection: &mut SqliteConnection,
-) -> Result<usize> {
-    let num_rows_inserted = diesel::insert_into(transactions_table)
-        .values(transactions)
-        .execute(connection)
-        .with_context(|| insert_err_msg(&transactions))?;
-    Ok(num_rows_inserted)
-}
-
-fn insert_err_msg(transactions: &[Transaction]) -> String {
-    format!(
-        "failed to insert transactions: [{}]",
-        transactions
-            .iter()
-            .map(|t| t.id.to_string())
-            .collect::<Vec<String>>()
-            .join(", ")
-    )
-}
diff --git a/rust/schist_queries/src/utils/calculate_budgets_accrual.rs b/rust/schist_queries/src/utils/calculate_budgets_accrual.rs
deleted file mode 100644
index ca82953..0000000
--- a/rust/schist_queries/src/utils/calculate_budgets_accrual.rs
+++ /dev/null
@@ -1,72 +0,0 @@
-use anyhow::Result;
-use schist_models::{
-    budget_drip::BudgetDrip,
-    category::Category,
-};
-
-pub fn calculate_budgets_accrual(category: &Category, budget_drips: &[BudgetDrip]) -> Result<i64> {
-    Ok(budget_drips
-        .iter()
-        .filter(|bd| bd.category_id == category.id)
-        .map(|bd| Into::<i64>::into(bd.quantity))
-        .sum()
-    )
-}
-
-#[cfg(test)]
-mod test {
-    use schist_fakes::{budget_drip::make_fake_budget_drip_builder, category::make_fake_category};
-
-    use super::calculate_budgets_accrual;
-
-    #[test]
-    fn when_no_budget_drips_then_return_zero() {
-        let category = make_fake_category(0);
-        let budget_drips = [];
-
-        let result = calculate_budgets_accrual(&category, &budget_drips);
-
-        assert!(result.is_ok());
-        assert_eq!(result.unwrap(), 0_i64);
-    }
-
-    #[test]
-    fn when_one_budget_drip_for_another_category_then_return_zero() {
-        let category = make_fake_category(0);
-        let budget_drips = [
-            make_fake_budget_drip_builder(0).quantity(100).category_id(1).build().unwrap(),
-        ];
-
-        let result = calculate_budgets_accrual(&category, &budget_drips);
-
-        assert!(result.is_ok());
-        assert_eq!(result.unwrap(), 0_i64);
-    }
-
-    #[test]
-    fn when_one_budget_drip_then_return_quantity() {
-        let category = make_fake_category(0);
-        let budget_drips = [
-            make_fake_budget_drip_builder(0).quantity(100).category_id(0).build().unwrap(),
-        ];
-
-        let result = calculate_budgets_accrual(&category, &budget_drips);
-
-        assert!(result.is_ok());
-        assert_eq!(result.unwrap(), 100);
-    }
-
-    #[test]
-    fn when_two_budget_drips_then_return_sum() {
-        let category = make_fake_category(0);
-        let budget_drips = [
-            make_fake_budget_drip_builder(0).quantity(100).category_id(0).build().unwrap(),
-            make_fake_budget_drip_builder(1).quantity(120).category_id(0).build().unwrap(),
-        ];
-
-        let result = calculate_budgets_accrual(&category, &budget_drips);
-
-        assert!(result.is_ok());
-        assert_eq!(result.unwrap(), 220);
-    }
-}
diff --git a/rust/schist_queries/src/utils/calculate_category_balance.rs b/rust/schist_queries/src/utils/calculate_category_balance.rs
deleted file mode 100644
index 73e80cd..0000000
--- a/rust/schist_queries/src/utils/calculate_category_balance.rs
+++ /dev/null
@@ -1,130 +0,0 @@
-use anyhow::Result;
-use schist_models::{budget_drip::BudgetDrip, category::Category};
-
-use super::{calculate_budgets_accrual, find_by_id_or};
-
-pub fn calculate_category_balance(
-    category: &Category,
-    transaction_sums: &[(i32, i64)],
-    category_transfer_from_sums: &[(i32, i64)],
-    category_transfer_to_sums: &[(i32, i64)],
-    budget_drips: &[BudgetDrip],
-) -> Result<i64> {
-    let transaction_sum = find_by_id_or(transaction_sums, category.id, 0);
-    let category_transfer_from_sum = find_by_id_or(category_transfer_from_sums, category.id, 0);
-    let category_transfer_to_sum = find_by_id_or(category_transfer_to_sums, category.id, 0);
-    let budget_accruals_sum = calculate_budgets_accrual(category, budget_drips)?;
-
-    Ok(
-        transaction_sum
-            + budget_accruals_sum
-            + category_transfer_to_sum
-            - category_transfer_from_sum
-    )
-}
-
-#[cfg(test)]
-mod test {
-    use schist_fakes::{budget_drip::make_fake_budget_drip_builder, category::make_fake_category};
-
-    use super::calculate_category_balance;
-
-    #[test]
-    fn when_no_data_then_returns_zero() {
-        let category = make_fake_category(0);
-
-        let result = calculate_category_balance(&category, &[], &[], &[], &[]);
-
-        assert!(result.is_ok());
-        assert_eq!(result.unwrap(), 0_i64);
-    }
-
-    #[test]
-    fn when_data_only_for_another_category_then_returns_zero() {
-        let category = make_fake_category(0);
-        let transaction_sums = [(1, 100)];
-        let category_transfer_from_sums = [(1, 91)];
-        let category_transfer_to_sums = [(2, 79)];
-        let budget_drips = [
-            make_fake_budget_drip_builder(0).quantity(100).category_id(1).build().unwrap(),
-        ];
-
-        let result = calculate_category_balance(
-            &category,
-            &transaction_sums,
-            &category_transfer_from_sums,
-            &category_transfer_to_sums,
-            &budget_drips,
-        );
-
-        assert!(result.is_ok());
-        assert_eq!(result.unwrap(), 0_i64);
-    }
-
-    #[test]
-    fn when_transaction_sum_is_zero_then_returns_zero() {
-        let category = make_fake_category(0);
-        let transaction_sums = [(0, 0)];
-        let category_transfer_from_sums = [];
-        let category_transfer_to_sums = [];
-        let budget_drips = [];
-
-        let result = calculate_category_balance(
-            &category,
-            &transaction_sums,
-            &category_transfer_from_sums,
-            &category_transfer_to_sums,
-            &budget_drips,
-        );
-
-        assert!(result.is_ok());
-        assert_eq!(result.unwrap(), 0_i64);
-    }
-
-    #[test]
-    fn when_category_transfers_are_zero_then_returns_zero() {
-        let category = make_fake_category(0);
-        let transaction_sums = [];
-        let category_transfer_from_sums = [(0, 0)];
-        let category_transfer_to_sums = [(0, 0)];
-        let budget_drips = [];
-
-        let result = calculate_category_balance(
-            &category,
-            &transaction_sums,
-            &category_transfer_from_sums,
-            &category_transfer_to_sums,
-            &budget_drips,
-        );
-
-        assert!(result.is_ok());
-        assert_eq!(result.unwrap(), 0_i64);
-    }
-
-    #[test]
-    fn when_some_data_then_calculates_as_expected() {
-        let category = make_fake_category(0);
-        let transaction_sums = [(0, 100)];
-        let category_transfer_from_sums = [(0, 91)];
-        let category_transfer_to_sums = [(0, 79)];
-        let budget_drips = [
-            make_fake_budget_drip_builder(0).quantity(77).category_id(0).build().unwrap(),
-            make_fake_budget_drip_builder(0).quantity(77).category_id(0).build().unwrap(),
-            make_fake_budget_drip_builder(0).quantity(77).category_id(0).build().unwrap(),
-            make_fake_budget_drip_builder(0).quantity(77).category_id(0).build().unwrap(),
-            make_fake_budget_drip_builder(0).quantity(77).category_id(0).build().unwrap(),
-        ];
-
-        let result = calculate_category_balance(
-            &category,
-            &transaction_sums,
-            &category_transfer_from_sums,
-            &category_transfer_to_sums,
-            &budget_drips,
-        );
-
-        let expected_result = 100 + (-91) + 79 + 77 * 5;
-        assert!(result.is_ok());
-        assert_eq!(result.unwrap(), expected_result);
-    }
-}
diff --git a/rust/schist_queries/src/utils/find_by_id_or.rs b/rust/schist_queries/src/utils/find_by_id_or.rs
deleted file mode 100644
index 8335e5c..0000000
--- a/rust/schist_queries/src/utils/find_by_id_or.rs
+++ /dev/null
@@ -1,41 +0,0 @@
-pub fn find_by_id_or<Id: PartialEq, Val: Copy>(
-    arr: &[(Id, Val)],
-    id: Id,
-    default: Val,
-) -> Val {
-    arr.iter()
-        .find(|(elem_id, _)| *elem_id == id)
-        .map_or(default, |row| row.1)
-}
-
-#[cfg(test)]
-mod test {
-    use super::find_by_id_or;
-
-    #[test]
-    fn when_no_elements_then_return_default() {
-        let arr = [];
-
-        let result = find_by_id_or(&arr, 1, 42);
-
-        assert_eq!(result, 42);
-    }
-
-    #[test]
-    fn when_id_not_in_elements_then_return_default() {
-        let arr = [(0, 100), (2, 200)];
-
-        let result = find_by_id_or(&arr, 1, 42);
-
-        assert_eq!(result, 42);
-    }
-
-    #[test]
-    fn when_id_in_elements_then_return_value() {
-        let arr = [(1, 67)];
-
-        let result = find_by_id_or(&arr, 1, 42);
-
-        assert_eq!(result, 67);
-    }
-}
diff --git a/rust/schist_queries/src/utils/mod.rs b/rust/schist_queries/src/utils/mod.rs
deleted file mode 100644
index f2653d8..0000000
--- a/rust/schist_queries/src/utils/mod.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-mod calculate_budgets_accrual;
-mod calculate_category_balance;
-mod find_by_id_or;
-
-use calculate_budgets_accrual::calculate_budgets_accrual;
-
-pub use calculate_category_balance::calculate_category_balance;
-pub use find_by_id_or::find_by_id_or;