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Refactor #1

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Dec 18, 2022
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Refactor #1

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96 changes: 31 additions & 65 deletions src/entity/relation.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -312,52 +312,57 @@ where
}
}

impl From<RelationDef> for ForeignKeyCreateStatement {
fn from(relation: RelationDef) -> Self {
let mut foreign_key_stmt = Self::new();
let from_tbl = unpack_table_ref(&relation.from_tbl);
let to_tbl = unpack_table_ref(&relation.to_tbl);
let from_cols: Vec<String> = match relation.from_col {
macro_rules! set_foreign_key_stmt {
( $relation: ident, $foreign_key: ident ) => {
let from_cols: Vec<String> = match $relation.from_col {
Identity::Unary(o1) => vec![o1],
Identity::Binary(o1, o2) => vec![o1, o2],
Identity::Ternary(o1, o2, o3) => vec![o1, o2, o3],
}
.into_iter()
.map(|col| {
let col_name = col.to_string();
foreign_key_stmt.from_col(col);
$foreign_key.from_col(col);
col_name
})
.collect();
match relation.to_col {
match $relation.to_col {
Identity::Unary(o1) => {
foreign_key_stmt.to_col(o1);
$foreign_key.to_col(o1);
}
Identity::Binary(o1, o2) => {
foreign_key_stmt.to_col(o1);
foreign_key_stmt.to_col(o2);
$foreign_key.to_col(o1);
$foreign_key.to_col(o2);
}
Identity::Ternary(o1, o2, o3) => {
foreign_key_stmt.to_col(o1);
foreign_key_stmt.to_col(o2);
foreign_key_stmt.to_col(o3);
$foreign_key.to_col(o1);
$foreign_key.to_col(o2);
$foreign_key.to_col(o3);
}
}
if let Some(action) = relation.on_delete {
foreign_key_stmt.on_delete(action);
if let Some(action) = $relation.on_delete {
$foreign_key.on_delete(action);
}
if let Some(action) = relation.on_update {
foreign_key_stmt.on_update(action);
if let Some(action) = $relation.on_update {
$foreign_key.on_update(action);
}
let name = if let Some(name) = relation.fk_name {
let name = if let Some(name) = $relation.fk_name {
name
} else {
let from_tbl = unpack_table_ref(&$relation.from_tbl);
format!("fk-{}-{}", from_tbl.to_string(), from_cols.join("-"))
};
$foreign_key.name(&name);
};
}

impl From<RelationDef> for ForeignKeyCreateStatement {
fn from(relation: RelationDef) -> Self {
let mut foreign_key_stmt = Self::new();
set_foreign_key_stmt!(relation, foreign_key_stmt);
foreign_key_stmt
.name(&name)
.from_tbl(from_tbl)
.to_tbl(to_tbl)
.from_tbl(unpack_table_ref(&relation.from_tbl))
.to_tbl(unpack_table_ref(&relation.to_tbl))
.take()
}
}
Expand Down Expand Up @@ -390,50 +395,11 @@ impl From<RelationDef> for ForeignKeyCreateStatement {
/// ```
impl From<RelationDef> for TableForeignKey {
fn from(relation: RelationDef) -> Self {
let from_tbl = unpack_table_ref(&relation.from_tbl);
let mut foreign_key = Self::new()
.from_tbl(relation.from_tbl)
.to_tbl(relation.to_tbl)
.take();
let from_cols: Vec<String> = match relation.from_col {
Identity::Unary(o1) => vec![o1],
Identity::Binary(o1, o2) => vec![o1, o2],
Identity::Ternary(o1, o2, o3) => vec![o1, o2, o3],
}
.into_iter()
.map(|col| {
let col_name = col.to_string();
foreign_key.from_col(col);
col_name
})
.collect();
match relation.to_col {
Identity::Unary(o1) => {
foreign_key.to_col(o1);
}
Identity::Binary(o1, o2) => {
foreign_key.to_col(o1);
foreign_key.to_col(o2);
}
Identity::Ternary(o1, o2, o3) => {
foreign_key.to_col(o1);
foreign_key.to_col(o2);
foreign_key.to_col(o3);
}
}
if let Some(action) = relation.on_delete {
foreign_key.on_delete(action);
}
if let Some(action) = relation.on_update {
foreign_key.on_update(action);
}
let name = if let Some(name) = relation.fk_name {
name
} else {
format!("fk-{}-{}", from_tbl.to_string(), from_cols.join("-"))
};
foreign_key.name(&name);
let mut foreign_key = Self::new();
set_foreign_key_stmt!(relation, foreign_key);
foreign_key
.from_tbl(unpack_table_ref(&relation.from_tbl))
.take()
}
}

Expand Down