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+
Sqlite
+
Setup connection
+
First thing you need to do is to setup a connection is:
+
let conn = sqlite::open("my_database.db");
+
+
We can also use a in-memory database:
+
let conn = sqlite::open_in_memory("my_database.db");
+
+
Define tables
+
To define a table we use derive with the Table (provided by njord) and Default procedural macro. Then we create a simple struct with a given name. The name of the struct will be the table name in the database:
+
#[derive(Table, Default)]
+struct Posts {
+ title: String,
+ description: String,
+}
+
+#[derive(Table, Default)]
+struct Categories {
+ name: String,
+}
+
+
Initialize database with tables
+
First thing we need to do before we do any insert, select etc is to initialize the database with the defined tables. To initialize the database we need to box the struct and call default() and save it to a variable:
+
let posts_table = Box::<Posts>::default();
+let categories_table = Box::<Categories>::default();
+
+
Now we add them to a tables vector:
+
let mut tables: Vec<Box<dyn Table>> = vec![posts_table, categories_table];
+
+
Lastly, we call the init() function to setup the tables from the tables vector, such as:
+
sqlite::init(conn, tables);
+
+
Insert data to table
+
To insert data, we need to initialize our Posts struct that we created with values for each field:
+
let table_row: Posts = Posts {
+ title: "A post title".to_string(),
+ description: "Some description for for a post".to_string(),
+};
+
+
We insert the row by passing a connection and a reference to the table_row:
+
sqlite::insert(conn, &table_row);
+
+
Drop table
+
To drop a table, it is a simple as:
+
sqlite::drop_table(conn, &Posts::default());
+
+
Select
+
Docs are coming soon...
+
WHERE
+
ORDER BY
+
GROUP BY
+
LIMIT
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OFFSET
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+
+ -
+ Last updated:
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+ Contributors
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