Merge pull request #149 from Giveth/add-getAttestorsTotalCount

Add get attesters total count

src/server-extension/attestor-resolver-types.ts

@@ -0,0 +1,7 @@
+import { Field, ObjectType } from "type-graphql";
+
+@ObjectType()
+export class AttestorsTotalCountResult {
+  @Field()
+  totalCount: number = 0;
+}

src/server-extension/attestor-resolver.ts

@@ -0,0 +1,36 @@
+import { Query, Resolver } from "type-graphql";
+import type { EntityManager } from "typeorm";
+import { AttestorsTotalCountResult } from "./attestor-resolver-types";
+
+@Resolver()
+export class AttestorResolver {
+  constructor(private tx: () => Promise<EntityManager>) {}
+
+  @Query(() => AttestorsTotalCountResult)
+  async getAttestorsTotalCount(): Promise<AttestorsTotalCountResult> {
+    try {
+      const manager = await this.tx();
+
+      // Construct the final query
+      const query = `
+        SELECT COUNT(DISTINCT attestor_organisation.attestor_id) AS total_unique_attesters
+        FROM project_attestation
+        JOIN attestor_organisation ON project_attestation.attestor_organisation_id = attestor_organisation.id;
+      `;
+
+      // Execute the query with parameters
+      const rawProjects = await manager.query(query);
+
+      if (!rawProjects?.[0]?.total_unique_attesters) {
+        return { totalCount: 0 };
+      }
+
+      return {
+        totalCount: rawProjects[0].total_unique_attesters,
+      };
+    } catch (error) {
+      console.error("Error counting attestors:", error);
+      throw new Error("Failed to count attestors");
+    }
+  }
+}

src/server-extension/project-resolver.ts

@@ -1,6 +1,5 @@
 import "reflect-metadata";
-import { GraphQLResolveInfo } from "graphql";
-import { Arg, Info, Int, Query, Resolver } from "type-graphql";
+import { Arg, Int, Query, Resolver } from "type-graphql";
 import type { EntityManager } from "typeorm";
 import { EProjectSort, ProjectsSortedByVouchOrFlagType } from "./types";
 import { getProjectSortBy } from "./helper";

src/server-extension/resolvers/index.ts

@@ -1,2 +1,3 @@
 export { ProjectResolver } from "../project-resolver";
 export { OrganisationResolver } from "../organization-resolver";
+export { AttestorResolver } from "../attestor-resolver";