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refactor mysql models

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This commit is contained in:
Rob Ede 2023-07-17 22:13:50 +01:00
parent a86471501d
commit da976e0415
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3 changed files with 185 additions and 266 deletions
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14
databases/mysql/src/models.rs
View File

@ -24,12 +24,6 @@ pub struct CustomerData {
pub branch_name: String,
}
#[derive(Debug, Serialize)]
pub struct ResponseStatus {
pub status_code: u8,
pub status_description: String,
}
#[derive(Debug, Serialize)]
pub struct BankDetails {
pub bank_name: String,
@ -38,8 +32,6 @@ pub struct BankDetails {
#[derive(Debug, Serialize)]
pub struct BankResponseData {
pub status_code: u8,
pub status_description: String,
pub bank_data: Vec<BankDetails>,
}
@ -51,8 +43,6 @@ pub struct BranchDetails {
#[derive(Debug, Serialize)]
pub struct BranchResponseData {
pub status_code: u8,
pub status_description: String,
pub branch_data: Vec<BranchDetails>,
}
@ -64,8 +54,6 @@ pub struct TellerDetails {
#[derive(Debug, Serialize)]
pub struct TellerResponseData {
pub status_code: u8,
pub status_description: String,
pub teller_data: Vec<TellerDetails>,
}
@ -77,7 +65,5 @@ pub struct CustomerDetails {
#[derive(Debug, Serialize)]
pub struct CustomerResponseData {
pub status_code: u8,
pub status_description: String,
pub customer_data: Vec<CustomerDetails>,
}

387
databases/mysql/src/persistence.rs
View File

@ -1,13 +1,12 @@
use actix_web::http::StatusCode;
use derive_more::{Display, Error, From};
use mysql::{params, prelude::*};
use crate::models::{
BankDetails, BankResponseData, BranchDetails, BranchResponseData, CustomerDetails,
CustomerResponseData, ResponseStatus, TellerDetails, TellerResponseData,
CustomerResponseData, TellerDetails, TellerResponseData,
};
const ERROR_MESSAGE: &str = "Error occurred during processing, please try again.";
#[derive(Debug, Display, Error, From)]
pub enum PersistenceError {
EmptyBankName,
@ -16,12 +15,28 @@ pub enum PersistenceError {
EmptyLocation,
EmptyTellerName,
EmptyCustomerName,
MysqlError(mysql::Error),
Unknown,
}
impl actix_web::ResponseError for PersistenceError {}
impl actix_web::ResponseError for PersistenceError {
fn status_code(&self) -> StatusCode {
match self {
PersistenceError::EmptyBankName
| PersistenceError::EmptyCountry
| PersistenceError::EmptyBranch
| PersistenceError::EmptyLocation
| PersistenceError::EmptyTellerName
| PersistenceError::EmptyCustomerName => StatusCode::BAD_REQUEST,
PersistenceError::MysqlError(_) | PersistenceError::Unknown => {
StatusCode::INTERNAL_SERVER_ERROR
}
}
}
}
pub fn create_bank(
pool: &mysql::Pool,
@ -38,246 +53,143 @@ pub fn create_bank(
let mut conn = pool.get_conn()?;
let rows_inserted =
let last_insert_id =
insert_bank_data(&mut conn, bank_name.to_lowercase(), country.to_lowercase())?;
if rows_inserted > 0 {
return Ok(());
if last_insert_id > 0 {
Ok(())
} else {
Err(PersistenceError::Unknown)
}
}
pub fn create_branch(pool: &mysql::Pool, branch_name: String, location: String) -> ResponseStatus {
let my_status_code: u8 = 1;
let my_status_description = ERROR_MESSAGE.to_owned();
let mut response_status = ResponseStatus {
status_code: my_status_code,
status_description: my_status_description,
};
pub fn create_branch(
pool: &mysql::Pool,
branch_name: String,
location: String,
) -> Result<(), PersistenceError> {
if branch_name.replace(' ', "").trim().is_empty() {
response_status.status_description = String::from("Branch name is empty!");
return response_status;
return Err(PersistenceError::EmptyBranch);
}
if location.replace(' ', "").trim().is_empty() {
response_status.status_description = String::from("Location is empty!");
return response_status;
return Err(PersistenceError::EmptyLocation);
}
match pool.get_conn().and_then(|mut conn| {
insert_branch_data(
let mut conn = pool.get_conn()?;
let last_insert_id = insert_branch_data(
&mut conn,
branch_name.to_lowercase(),
location.to_lowercase(),
)
}) {
Ok(x) => {
if x > 0 {
response_status.status_code = 0;
response_status.status_description = "Successful".to_owned();
}
}
Err(err) => println!("Failed to open DB connection. create_branch {err:?}"),
}
)?;
response_status
if last_insert_id > 0 {
Ok(())
} else {
Err(PersistenceError::Unknown)
}
}
pub fn create_teller(
pool: &mysql::Pool,
teller_name: String,
branch_name: String,
) -> ResponseStatus {
let my_status_code: u8 = 1;
let my_status_description = ERROR_MESSAGE.to_owned();
let mut response_status = ResponseStatus {
status_code: my_status_code,
status_description: my_status_description,
};
) -> Result<(), PersistenceError> {
if teller_name.replace(' ', "").trim().is_empty() {
response_status.status_description = String::from("Teller name is empty!");
return response_status;
return Err(PersistenceError::EmptyTellerName);
}
if branch_name.replace(' ', "").trim().is_empty() {
response_status.status_description = String::from("Branch name is empty!");
return response_status;
return Err(PersistenceError::EmptyBranch);
}
match pool.get_conn().and_then(|mut conn| {
insert_teller_data(
let mut conn = pool.get_conn()?;
let last_insert_id = insert_teller_data(
&mut conn,
teller_name.to_lowercase(),
branch_name.to_lowercase(),
)
}) {
Ok(x) => {
if x > 0 {
response_status.status_code = 0;
response_status.status_description = "Successful".to_owned();
}
}
Err(err) => println!("Failed to open DB connection. create_teller {err:?}"),
}
)?;
response_status
if last_insert_id > 0 {
Ok(())
} else {
Err(PersistenceError::Unknown)
}
}
pub fn create_customer(
pool: &mysql::Pool,
customer_name: String,
branch_name: String,
) -> ResponseStatus {
let my_status_code: u8 = 1;
let my_status_description = ERROR_MESSAGE.to_owned();
let mut response_status = ResponseStatus {
status_code: my_status_code,
status_description: my_status_description,
};
) -> Result<(), PersistenceError> {
if customer_name.replace(' ', "").trim().is_empty() {
response_status.status_description = String::from("Customer name is empty!");
return response_status;
return Err(PersistenceError::EmptyCustomerName);
}
if branch_name.replace(' ', "").trim().is_empty() {
response_status.status_description = String::from("Branch name is empty!");
return response_status;
return Err(PersistenceError::EmptyBranch);
}
match pool.get_conn().and_then(|mut conn| {
insert_customer_data(
let mut conn = pool.get_conn()?;
let last_insert_id = insert_customer_data(
&mut conn,
customer_name.to_lowercase(),
branch_name.to_lowercase(),
)
}) {
Ok(x) => {
if x > 0 {
response_status.status_code = 0;
response_status.status_description = "Successful".to_owned();
}
}
Err(err) => println!("Failed to open DB connection. create_customer {err:?}"),
}
)?;
response_status
}
pub fn get_bank_data(pool: &mysql::Pool) -> BankResponseData {
let mut vec_bank_data = Vec::new();
let mut my_status_code = 1_u8;
let mut my_status_description: String = String::from("Record not found");
match pool
.get_conn()
.and_then(|mut conn| select_bank_details(&mut conn))
{
Ok(data) => vec_bank_data = data,
Err(err) => println!("Failed to open DB connection. {err:?}"),
}
if !vec_bank_data.is_empty() {
my_status_code = 0;
my_status_description = "Successful".to_owned();
}
BankResponseData {
status_code: my_status_code,
status_description: my_status_description,
bank_data: vec_bank_data,
if last_insert_id > 0 {
Ok(())
} else {
Err(PersistenceError::Unknown)
}
}
pub fn get_branch_data(pool: &mysql::Pool) -> BranchResponseData {
let mut vec_branch_data = Vec::new();
let mut my_status_code = 1_u8;
let mut my_status_description: String = String::from("Record not found");
pub fn get_bank_data(pool: &mysql::Pool) -> Result<BankResponseData, PersistenceError> {
let mut conn = pool.get_conn()?;
match pool
.get_conn()
.and_then(|mut conn| select_branch_details(&mut conn))
{
Ok(data) => vec_branch_data = data,
Err(err) => println!("Failed to open DB connection. {err:?}"),
}
if !vec_branch_data.is_empty() {
my_status_code = 0;
my_status_description = "Successful".to_owned();
}
BranchResponseData {
status_code: my_status_code,
status_description: my_status_description,
branch_data: vec_branch_data,
}
Ok(BankResponseData {
bank_data: select_bank_details(&mut conn)?,
})
}
pub fn get_teller_data(pool: &mysql::Pool) -> TellerResponseData {
let mut vec_teller_data = Vec::new();
let mut my_status_code = 1_u8;
let mut my_status_description: String = String::from("Record not found");
pub fn get_branch_data(pool: &mysql::Pool) -> Result<BranchResponseData, PersistenceError> {
let mut conn = pool.get_conn()?;
match pool
.get_conn()
.and_then(|mut conn| select_teller_details(&mut conn))
{
Ok(data) => vec_teller_data = data,
Err(err) => println!("Failed to open DB connection. {err:?}"),
}
if !vec_teller_data.is_empty() {
my_status_code = 0;
my_status_description = "Successful".to_owned();
}
TellerResponseData {
status_code: my_status_code,
status_description: my_status_description,
teller_data: vec_teller_data,
}
Ok(BranchResponseData {
branch_data: select_branch_details(&mut conn)?,
})
}
pub fn get_customer_data(pool: &mysql::Pool) -> CustomerResponseData {
let mut vec_customer_data = Vec::new();
let mut my_status_code = 1_u8;
let mut my_status_description: String = String::from("Record not found");
pub fn get_teller_data(pool: &mysql::Pool) -> Result<TellerResponseData, PersistenceError> {
let mut conn = pool.get_conn()?;
match pool
.get_conn()
.and_then(|mut conn| select_customer_details(&mut conn))
{
Ok(data) => vec_customer_data = data,
Err(err) => println!("Failed to open DB connection. {err:?}"),
}
if !vec_customer_data.is_empty() {
my_status_code = 0;
my_status_description = "Successful".to_owned();
}
CustomerResponseData {
status_code: my_status_code,
status_description: my_status_description,
customer_data: vec_customer_data,
}
Ok(TellerResponseData {
teller_data: select_teller_details(&mut conn)?,
})
}
pub fn get_customer_data(pool: &mysql::Pool) -> Result<CustomerResponseData, PersistenceError> {
let mut conn = pool.get_conn()?;
Ok(CustomerResponseData {
customer_data: select_customer_details(&mut conn)?,
})
}
/// Insert data into the database table `bank_details`.
fn insert_bank_data(
conn: &mut mysql::PooledConn,
my_bank_name: String,
my_country: String,
) -> std::result::Result<u64, mysql::error::Error> {
// Insert data into the database table bank_details
) -> mysql::error::Result<u64> {
conn.exec_drop(
"insert into bank_details (bank_name, country) values (:bank_name, :country);",
"
INSERT INTO bank_details (bank_name, country)
VALUES (:bank_name, :country)
",
params! {
"bank_name" => my_bank_name,
"country" => my_country,
@ -286,14 +198,17 @@ fn insert_bank_data(
.map(|_| conn.last_insert_id())
}
/// Insert data into the database table `branch_details`.
fn insert_branch_data(
conn: &mut mysql::PooledConn,
my_branch_name: String,
my_location: String,
) -> std::result::Result<u64, mysql::error::Error> {
// Insert data into the database table branch_details
) -> mysql::error::Result<u64> {
conn.exec_drop(
"insert into branch_details (branch_name, location) values (:branch_name, :location);",
"
INSERT INTO branch_details (branch_name, location)
VALUES (:branch_name, :location)
",
params! {
"branch_name" => my_branch_name,
"location" => my_location,
@ -302,88 +217,106 @@ fn insert_branch_data(
.map(|_| conn.last_insert_id())
}
/// Insert data into the database table `teller_details`.
fn insert_teller_data(
conn: &mut mysql::PooledConn,
my_teller_name: String,
my_branch_name: String,
) -> std::result::Result<u64, mysql::error::Error> {
// Insert data into the database table teller_details
) -> mysql::error::Result<u64> {
conn.exec_drop(
"insert into teller_details (teller_name, branch_name) values (:teller_name, :branch_name);",
"
INSERT INTO teller_details (teller_name, branch_name)
VALUES (:teller_name, :branch_name)
",
params! {
"teller_name" => my_teller_name,
"branch_name" => my_branch_name,
},
).map(|_| conn.last_insert_id())
)
.map(|_| conn.last_insert_id())
}
/// Insert data into the database table `customer_details`.
fn insert_customer_data(
conn: &mut mysql::PooledConn,
my_customer_name: String,
my_branch_name: String,
) -> std::result::Result<u64, mysql::error::Error> {
// Insert data into the database table customer_details
) -> mysql::error::Result<u64> {
conn.exec_drop(
"insert into customer_details (customer_name, branch_name) values (:customer_name, :branch_name);",
r"
INSERT INTO customer_details (customer_name, branch_name)
VALUES (:customer_name, :branch_name)
",
params! {
"customer_name" => my_customer_name,
"branch_name" => my_branch_name,
},
).map(|_| conn.last_insert_id())
)
.map(|_| conn.last_insert_id())
}
fn select_bank_details(
conn: &mut mysql::PooledConn,
) -> std::result::Result<Vec<BankDetails>, mysql::error::Error> {
let mut bank_data = Vec::new();
/// Lists all banks' details.
fn select_bank_details(conn: &mut mysql::PooledConn) -> mysql::error::Result<Vec<BankDetails>> {
conn.query_map(
"select bank_name, country from bank_details where length(trim(coalesce(bank_name,''))) > 0 and length(trim(coalesce(country,''))) > 0 order by id asc;",
|(my_bank_name, my_country)| {
let bank_details = BankDetails { bank_name: my_bank_name, country: my_country, };
bank_data.push(bank_details);
r"
SELECT bank_name, country FROM bank_details
WHERE LENGTH(TRIM(COALESCE(bank_name, ''))) > 0
AND LENGTH(TRIM(COALESCE(country, ''))) > 0
ORDER BY id ASC
",
|(my_bank_name, my_country)| BankDetails {
bank_name: my_bank_name,
country: my_country,
},
).map(|_| bank_data)
)
}
fn select_branch_details(
conn: &mut mysql::PooledConn,
) -> std::result::Result<Vec<BranchDetails>, mysql::error::Error> {
let mut branch_data = Vec::new();
/// Lists all branches' details.
fn select_branch_details(conn: &mut mysql::PooledConn) -> mysql::error::Result<Vec<BranchDetails>> {
conn.query_map(
"select branch_name, location from branch_details where length(trim(coalesce(branch_name,''))) > 0 and length(trim(coalesce(location,''))) > 0 order by id asc;",
|(my_branch_name, my_location)| {
let branch_details = BranchDetails { branch_name: my_branch_name, location: my_location, };
branch_data.push(branch_details);
r"
SELECT branch_name, location FROM branch_details
WHERE LENGTH(TRIM(COALESCE(branch_name, ''))) > 0
AND LENGTH(TRIM(COALESCE(location, ''))) > 0
ORDER BY id ASC
",
|(my_branch_name, my_location)| BranchDetails {
branch_name: my_branch_name,
location: my_location,
},
).map(|_| branch_data)
)
}
fn select_teller_details(
conn: &mut mysql::PooledConn,
) -> std::result::Result<Vec<TellerDetails>, mysql::error::Error> {
let mut teller_data = Vec::new();
/// Lists all tellers' details.
fn select_teller_details(conn: &mut mysql::PooledConn) -> mysql::error::Result<Vec<TellerDetails>> {
conn.query_map(
"select teller_name, branch_name from teller_details where length(trim(coalesce(teller_name,''))) > 0 and length(trim(coalesce(branch_name,''))) > 0 order by id asc;",
|(my_teller_name, my_branch_name)| {
let teller_details = TellerDetails { teller_name: my_teller_name, branch_name: my_branch_name, };
teller_data.push(teller_details);
r"
SELECT teller_name, branch_name FROM teller_details
WHERE LENGTH(TRIM(COALESCE(teller_name, ''))) > 0
AND LENGTH(TRIM(COALESCE(branch_name, ''))) > 0
ORDER BY id ASC
",
|(my_teller_name, my_branch_name)| TellerDetails {
teller_name: my_teller_name,
branch_name: my_branch_name,
},
).map(|_| teller_data)
)
}
/// Lists all customers' details.
fn select_customer_details(
conn: &mut mysql::PooledConn,
) -> std::result::Result<Vec<CustomerDetails>, mysql::error::Error> {
let mut customer_data = Vec::new();
) -> mysql::error::Result<Vec<CustomerDetails>> {
conn.query_map(
"select customer_name, branch_name from customer_details where length(trim(coalesce(customer_name,''))) > 0 and length(trim(coalesce(branch_name,''))) > 0 order by id asc;",
|(my_customer_name, my_branch_name)| {
let teller_details = CustomerDetails { customer_name: my_customer_name, branch_name: my_branch_name, };
customer_data.push(teller_details);
r"
SELECT customer_name, branch_name FROM customer_details
WHERE LENGTH(TRIM(COALESCE(customer_name, ''))) > 0
AND LENGTH(TRIM(COALESCE(branch_name, ''))) > 0
ORDER BY id ASC
",
|(my_customer_name, my_branch_name)| CustomerDetails {
customer_name: my_customer_name,
branch_name: my_branch_name,
},
).map(|_| customer_data)
)
}

26
databases/mysql/src/routes.rs
View File

@ -19,9 +19,9 @@ pub(crate) async fn add_bank(
data: web::Data<mysql::Pool>,
) -> actix_web::Result<impl Responder> {
let bank_name = bank_data.bank_name;
let _country = bank_data.country;
let country = bank_data.country;
create_bank(&data, bank_name, _country)?;
web::block(move || create_bank(&data, bank_name, country)).await??;
Ok(HttpResponse::NoContent())
}
@ -32,11 +32,11 @@ pub(crate) async fn add_branch(
data: web::Data<mysql::Pool>,
) -> actix_web::Result<impl Responder> {
let branch_name = branch_data.branch_name;
let _location = branch_data.location;
let location = branch_data.location;
let response_data = create_branch(&data, branch_name, _location);
web::block(move || create_branch(&data, branch_name, location)).await??;
Ok(web::Json(response_data))
Ok(HttpResponse::NoContent())
}
#[post("/teller")]
@ -47,9 +47,9 @@ pub(crate) async fn add_teller(
let teller_name = teller_data.teller_name;
let branch_name = teller_data.branch_name;
let response_data = create_teller(&data, teller_name, branch_name);
web::block(move || create_teller(&data, teller_name, branch_name)).await??;
Ok(web::Json(response_data))
Ok(HttpResponse::NoContent())
}
#[post("/customer")]
@ -60,26 +60,26 @@ pub(crate) async fn add_customer(
let customer_name = customer_data.customer_name;
let branch_name = customer_data.branch_name;
let response_data = create_customer(&data, customer_name, branch_name);
web::block(move || create_customer(&data, customer_name, branch_name)).await??;
Ok(web::Json(response_data))
Ok(HttpResponse::NoContent())
}
#[get("/bank")]
pub(crate) async fn get_bank(data: web::Data<mysql::Pool>) -> actix_web::Result<impl Responder> {
let bank_response_data = get_bank_data(&data);
let bank_response_data = web::block(move || get_bank_data(&data)).await??;
Ok(web::Json(bank_response_data))
}
#[get("/branch")]
pub(crate) async fn get_branch(data: web::Data<mysql::Pool>) -> actix_web::Result<impl Responder> {
let branch_response_data = get_branch_data(&data);
let branch_response_data = web::block(move || get_branch_data(&data)).await??;
Ok(web::Json(branch_response_data))
}
#[get("/teller")]
pub(crate) async fn get_teller(data: web::Data<mysql::Pool>) -> actix_web::Result<impl Responder> {
let teller_response_data = get_teller_data(&data);
let teller_response_data = web::block(move || get_teller_data(&data)).await??;
Ok(web::Json(teller_response_data))
}
@ -87,6 +87,6 @@ pub(crate) async fn get_teller(data: web::Data<mysql::Pool>) -> actix_web::Resul
pub(crate) async fn get_customer(
data: web::Data<mysql::Pool>,
) -> actix_web::Result<impl Responder> {
let customer_response_data = get_customer_data(&data);
let customer_response_data = web::block(move || get_customer_data(&data)).await??;
Ok(web::Json(customer_response_data))
}