pgx_sql_entity_graph/pg_trigger/
entity.rs

1/*!
2
3`#[pg_trigger]` related entities for Rust to SQL translation
4
5> Like all of the [`sql_entity_graph`][crate::pgx_sql_entity_graph] APIs, this is considered **internal**
6to the `pgx` framework and very subject to change between versions. While you may use this, please do it with caution.
7
8*/
9use crate::{PgxSql, SqlGraphEntity, SqlGraphIdentifier, ToSql, ToSqlConfigEntity};
10
11#[derive(Debug, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
12pub struct PgTriggerEntity {
13    pub function_name: &'static str,
14    pub to_sql_config: ToSqlConfigEntity,
15    pub file: &'static str,
16    pub line: u32,
17    pub module_path: &'static str,
18    pub full_path: &'static str,
19}
20
21impl PgTriggerEntity {
22    fn wrapper_function_name(&self) -> String {
23        self.function_name.to_string() + "_wrapper"
24    }
25}
26
27impl From<PgTriggerEntity> for SqlGraphEntity {
28    fn from(val: PgTriggerEntity) -> Self {
29        SqlGraphEntity::Trigger(val)
30    }
31}
32
33impl ToSql for PgTriggerEntity {
34    fn to_sql(&self, context: &PgxSql) -> eyre::Result<String> {
35        let self_index = context.triggers[self];
36        let schema = context.schema_prefix_for(&self_index);
37
38        let sql = format!(
39            "\n\
40            -- {file}:{line}\n\
41            -- {full_path}\n\
42            CREATE FUNCTION {schema}\"{function_name}\"()\n\
43                \tRETURNS TRIGGER\n\
44                \tLANGUAGE c\n\
45                \tAS 'MODULE_PATHNAME', '{wrapper_function_name}';",
46            schema = schema,
47            file = self.file,
48            line = self.line,
49            full_path = self.full_path,
50            function_name = self.function_name,
51            wrapper_function_name = self.wrapper_function_name(),
52        );
53        Ok(sql)
54    }
55}
56
57impl SqlGraphIdentifier for PgTriggerEntity {
58    fn dot_identifier(&self) -> String {
59        format!("trigger fn {}", self.full_path)
60    }
61    fn rust_identifier(&self) -> String {
62        self.full_path.to_string()
63    }
64
65    fn file(&self) -> Option<&'static str> {
66        Some(self.file)
67    }
68
69    fn line(&self) -> Option<u32> {
70        Some(self.line)
71    }
72}
pgx_sql_entity_graph/pg_trigger/entity.rs

pgx_sql_entity_graph/pg_trigger/
entity.rs
