Use default formatting

compliant-reward-distribution/indexer/README.md

@@ -61,3 +61,9 @@ There are a few options to configure the indexer:
 - `--db-connection` should specify your postgreSQL database connection. If not specified, the default value `host=localhost dbname=indexer user=postgres password=password port=5432` is used.
 
 - `--log-level` specifies the maximum log level. Possible values are: `trace`, `debug`, `info`, `warn`, and `error`. If not specified, the default value `info` is used.
+
+You can open the help menu as follows:
+
+```console
+cargo run --bin indexer -- --help
+```

compliant-reward-distribution/indexer/resources/schema.sql

@@ -46,10 +46,15 @@ CREATE TABLE IF NOT EXISTS accounts (
   zk_proof_version INT8,
   -- A hash of the revealed `firstName|lastName|passportNumber` to prevent
   -- claiming with different accounts for the same identity.
-  uniqueness_hash BYTEA
+  uniqueness_hash BYTEA,
+  -- Ensure that the ZK values are set at the same time. Either the ZK values are NULL or NOT NULL.
+  CHECK (
+    (zk_proof_valid IS NULL AND zk_proof_version IS NULL AND uniqueness_hash IS NULL) OR
+    (zk_proof_valid IS NOT NULL AND zk_proof_version IS NOT NULL AND uniqueness_hash IS NOT NULL)
+  )
 );
 
 -- Improve performance on queries for a given account_address in the accounts table.
 CREATE INDEX IF NOT EXISTS accounts_index ON accounts (account_address);
 -- Improve performance on queries for given pending_approvals in the accounts table.
-CREATE INDEX IF NOT EXISTS pending_approval_index ON accounts (pending_approval);
+CREATE INDEX IF NOT EXISTS pending_approval_index ON accounts (pending_approval);

compliant-reward-distribution/indexer/src/bin/indexer.rs

@@ -19,33 +19,31 @@ use tokio_postgres::types::ToSql;
 #[derive(Debug, clap::Parser)]
 #[command(author, version, about)]
 struct Args {
+    /// The node endpoint.
     #[arg(
         long = "node",
         short = 'n',
-        help = "The node endpoint.",
         default_value = "https://grpc.testnet.concordium.com:20000",
         global = true,
         env = "CCD_INDEXER_NODE"
     )]
     node_endpoint: concordium_rust_sdk::v2::Endpoint,
-    /// Database connection string.
+    // A connection string detailing the connection to the database used by the
+    // application.
     #[arg(
         long = "db-connection",
         default_value = "host=localhost dbname=indexer user=postgres password=password port=5432",
-        help = "A connection string detailing the connection to the database used by the \
-                application.",
         env = "CCD_INDEXER_DB_CONNECTION"
     )]
     db_connection: tokio_postgres::config::Config,
-    /// Maximum log level
+    /// The maximum log level. Possible values are: `trace`, `debug`, `info`,
+    /// `warn`, and `error`.
     #[clap(
         long = "log-level",
         default_value = "info",
-        help = "The maximum log level. Possible values are: `trace`, `debug`, `info`, `warn`, and \
-                `error`.",
         env = "CCD_INDEXER_LOG_LEVEL"
     )]
-    log_level:     tracing_subscriber::filter::LevelFilter,
+    log_level: tracing_subscriber::filter::LevelFilter,
 }
 
 /// A handler for storing monitored events in the database. This implements

compliant-reward-distribution/indexer/src/db.rs

@@ -26,7 +26,7 @@ type DatabaseResult<T> = Result<T, DatabaseError>;
 #[derive(Debug, Serialize)]
 pub struct StoredConfiguration {
     /// The genesis block hash of the network monitored.
-    pub genesis_block_hash:            BlockHash,
+    pub genesis_block_hash: BlockHash,
     /// The last block height that was processed.
     pub latest_processed_block_height: Option<AbsoluteBlockHeight>,
 }
@@ -61,11 +61,15 @@ pub struct Database {
 }
 
 impl From<Object> for Database {
-    fn from(client: Object) -> Self { Self { client } }
+    fn from(client: Object) -> Self {
+        Self { client }
+    }
 }
 
 impl AsRef<Object> for Database {
-    fn as_ref(&self) -> &Object { &self.client }
+    fn as_ref(&self) -> &Object {
+        &self.client
+    }
 }
 
 impl Database {