[feat] gva:block: add field issuers_count

lib/modules/gva/resources/schema.gql

@@ -81,6 +81,7 @@ type Block {
   currency: String!
   issuer: String!
   issuerName: String,
+  issuersCount: Int!
   number: Int!
   hash: String!,
   commonTime: DateTimeUtc!

lib/modules/gva/src/schema/entities/block.rs

@@ -31,6 +31,7 @@ pub struct Block {
     currency: String,
     issuer: String,
     issuer_name: Option<String>,
+    issuers_count: i32,
     number: i32,
     hash: String,
     common_time: NaiveDateTime,
@@ -57,6 +58,7 @@ impl Block {
             } else {
                 None
             },
+            issuers_count: block_db.block.issuers_count() as i32,
             number: block_db.block.number().0 as i32,
             hash: block_db
                 .block
@@ -108,4 +110,8 @@ impl super::super::BlockFields for Block {
     fn field_pow_min(&self, _executor: &Executor<'_, QueryContext>) -> FieldResult<&i32> {
         Ok(&self.pow_min)
     }
+    #[inline]
+    fn field_issuers_count(&self, _executor: &Executor<'_, QueryContext>) -> FieldResult<&i32> {
+        Ok(&self.issuers_count)
+    }
 }

lib/modules/gva/src/schema/queries/block.rs

@@ -69,6 +69,7 @@ mod tests {
                     Hash::default(),
                 );
                 block.issuers = vec![pubkey('B')];
+                block.issuers_count = 3;
                 block.pow_min = 70;
                 Ok(Some(BlockDb {
                     block: BlockDocument::V10(block),
@@ -99,7 +100,7 @@ mod tests {
 
         tests::test_gql_query(
             schema,
-            "{ block(number: 42) { commonTime, currency, hash, issuer, issuerName, number, powMin, version } }",
+            "{ block(number: 42) { commonTime, currency, hash, issuer, issuerName, issuersCount, number, powMin, version } }",
             json!({
                 "data": {
                     "block": {
@@ -108,6 +109,7 @@ mod tests {
                         "hash": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
                         "issuer": "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB",
                         "issuerName": "issuerName",
+                        "issuersCount": 3,
                         "number": 42,
                         "powMin": 70,
                         "version": 10