Built insert and update builders
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@@ -1,6 +1,8 @@
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use std::fmt;
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use std::fmt::Display;
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use sqlx::{FromRow, Postgres};
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use crate::data::condition::Condition;
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use crate::data::Value;
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pub struct QueryBuilder {
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table: String,
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@@ -52,16 +54,28 @@ impl QueryBuilder {
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let mut query_as = sqlx::query_as(&query_string);
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for value in values {
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match value {
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Value::INT(n) => query_as = query_as.bind(n),
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Value::BIGINT(n) => query_as = query_as.bind(n),
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Value::Int(n) => query_as = query_as.bind(n),
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Value::OptionalInt(n) => query_as = query_as.bind(n),
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Value::BigInt(n) => query_as = query_as.bind(n),
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Value::OptionalBigInt(n) => query_as = query_as.bind(n),
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Value::Float(n) => query_as = query_as.bind(n),
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Value::OptionalFloat(n) => query_as = query_as.bind(n),
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Value::Double(n) => query_as = query_as.bind(n),
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Value::OptionalDouble(n) => query_as = query_as.bind(n),
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Value::Bool(n) => query_as = query_as.bind(n),
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Value::OptionalBool(n) => query_as = query_as.bind(n),
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Value::Text(n) => query_as = query_as.bind(n),
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Value::OptionalText(n) => query_as = query_as.bind(n),
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}
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}
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let pool = crate::data::pool();
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query_as.fetch_optional(pool).await.unwrap_or_else(|err| {
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log::error!("{}", err);
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log::error!(
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"Unable to fetch optional on query '{}': {}",
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query_string,
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err
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);
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None
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})
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}
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@@ -97,152 +111,3 @@ impl QueryBuilder {
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(query, values)
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}
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}
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#[derive(Debug, Clone)]
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pub enum Value {
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INT(i32),
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BIGINT(i64),
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Bool(bool),
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Text(String),
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}
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impl Display for Value {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Value::INT(n) => write!(f, "{}", n),
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Value::BIGINT(n) => write!(f, "{}", n),
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Value::Bool(n) => write!(f, "{}", n),
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Value::Text(s) => write!(f, "'{}'", s), // Wrap strings in quotes for SQL
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}
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}
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}
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pub enum Condition {
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Simple(String, Vec<Value>),
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And(Box<Condition>, Box<Condition>),
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Or(Box<Condition>, Box<Condition>),
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Group(Box<Condition>),
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}
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impl Condition {
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pub fn new(condition: &str) -> Self {
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Condition::Simple(condition.to_string(), vec![])
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}
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pub fn and(self, other: Self) -> Self {
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Condition::And(Box::new(self), Box::new(other))
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}
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pub fn or(self, other: Self) -> Self {
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Condition::Or(Box::new(self), Box::new(other))
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}
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pub fn group(self) -> Self {
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Condition::Group(Box::new(self))
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}
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pub fn is_equal(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} = ?", left), vec![right.into()])
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}
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pub fn not_equal(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} != ?", left), vec![right.into()])
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}
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pub fn is_null(value: &str) -> Self {
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Condition::Simple(format!("{} IS NULL", value), vec![])
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}
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pub fn not_null(value: &str) -> Self {
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Condition::Simple(format!("{} IS NOT NULL", value), vec![])
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}
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pub fn is_in(left: &str, right: Vec<Value>) -> Self {
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let right_list = right
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.iter()
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.map(|v| "'?'".to_string())
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.collect::<Vec<_>>()
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.join(", ");
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Condition::Simple(format!("{} IN ({})", left, right_list), right)
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}
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pub fn not_in(left: &str, right: Vec<Value>) -> Self {
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let right_list = right
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.iter()
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.map(|v| "'?'".to_string())
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.collect::<Vec<_>>()
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.join(", ");
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Condition::Simple(format!("{} NOT IN ({})", left, right_list), right)
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}
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pub fn like(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} LIKE '?'", left), vec![right.into()])
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}
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pub fn not_like(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} NOT LIKE '?'", left), vec![right.into()])
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}
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pub fn i_like(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} ILIKE '?'", left), vec![right.into()])
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}
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pub fn not_i_like(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} NOT ILIKE '?'", left), vec![right.into()])
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}
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pub fn gt(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} > ?", left), vec![right.into()])
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}
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pub fn gte(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} >= ?", left), vec![right.into()])
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}
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pub fn lt(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} < ?", left), vec![right.into()])
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}
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pub fn lte(left: &str, right: impl Into<Value>) -> Self {
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Condition::Simple(format!("{} <= ?", left), vec![right.into()])
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}
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fn to_sql(&self, mut counter: &mut usize) -> (String, Vec<Value>) {
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let mut sql = String::new();
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let mut binds = Vec::new();
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match self {
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Condition::Simple(condition, values) => {
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// Replace all instances of '?' with an numbered bind
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let mut bind_index = *counter;
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let numbered_condition = condition.replace("?", {
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bind_index += 1;
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&format!("${}", bind_index)
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});
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sql.push_str(&numbered_condition);
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binds.extend(values.clone());
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}
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Condition::And(left, right) => {
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let (left_sql, left_binds) = left.to_sql(counter);
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let (right_sql, right_binds) = right.to_sql(counter);
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sql.push_str(&format!("{} AND {}", left_sql, right_sql));
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binds.extend(left_binds);
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binds.extend(right_binds);
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}
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Condition::Or(left, right) => {
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let (left_sql, left_binds) = left.to_sql(counter);
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let (right_sql, right_binds) = right.to_sql(counter);
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sql.push_str(&format!("{} OR {}", left_sql, right_sql));
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binds.extend(left_binds);
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binds.extend(right_binds);
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}
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Condition::Group(inner) => {
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let (inner_sql, inner_binds) = inner.to_sql(counter);
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sql.push_str(&format!("({})", inner_sql));
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binds.extend(inner_binds);
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}
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};
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(sql, binds)
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}
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}
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