#4270 - Update the Data Types to adapt to import (#4329)

As per the testing done from SFAS file, data type of the following DB
columns have been updated.

- [x] `sims.sfas_individuals` - column `phone_number` changed to BIGINT.
- [x] `sims.sfas_applications` - column `application_number` changed to
BIGINT.
- [x] `sims.sfas_applications` - column `gross_income_previous_year`
changed to NUMERIC(10,2).
- [x] Numeric transformer was used wherever required.

**Note**: Type casting wasn't used in the data type conversion expecting
no data in the columns.

## Rollback Evidence


![image](https://github.com/user-attachments/assets/5542ca83-c23d-4d46-a289-5647c4c54c41)


![image](https://github.com/user-attachments/assets/badebe05-e700-4ca4-a3da-cee1bb8201cb)

sources/packages/backend/apps/db-migrations/src/migrations/1738899779713-AlterSFASIndividualExpansionColumnType.ts

@@ -0,0 +1,18 @@
+import { MigrationInterface, QueryRunner } from "typeorm";
+import { getSQLFileData } from "../utilities/sqlLoader";
+
+export class AlterSFASIndividualExpansionColumnType1738899779713
+  implements MigrationInterface
+{
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      getSQLFileData("Alter-phone-number-type.sql", "SFASIndividuals"),
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      getSQLFileData("Rollback-alter-phone-number-type.sql", "SFASIndividuals"),
+    );
+  }
+}

sources/packages/backend/apps/db-migrations/src/migrations/1738900082886-AlterSFASApplicationExpansionColumnType.ts

@@ -0,0 +1,21 @@
+import { MigrationInterface, QueryRunner } from "typeorm";
+import { getSQLFileData } from "../utilities/sqlLoader";
+
+export class AlterSFASApplicationExpansionColumnType1738900082886
+  implements MigrationInterface
+{
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      getSQLFileData("Alter-expansion-columns-type.sql", "SFASApplications"),
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      getSQLFileData(
+        "Rollback-alter-expansion-columns-type.sql",
+        "SFASApplications",
+      ),
+    );
+  }
+}

sources/packages/backend/apps/db-migrations/src/sql/SFASApplications/Alter-expansion-columns-type.sql

@@ -0,0 +1,9 @@
+ALTER TABLE
+    sims.sfas_applications
+ALTER COLUMN
+    application_number TYPE BIGINT;
+
+ALTER TABLE
+    sims.sfas_applications
+ALTER COLUMN
+    gross_income_previous_year TYPE NUMERIC(10, 2);

sources/packages/backend/apps/db-migrations/src/sql/SFASApplications/Rollback-alter-expansion-columns-type.sql

@@ -0,0 +1,9 @@
+ALTER TABLE
+    sims.sfas_applications
+ALTER COLUMN
+    application_number TYPE INT;
+
+ALTER TABLE
+    sims.sfas_applications
+ALTER COLUMN
+    gross_income_previous_year TYPE INT;

sources/packages/backend/apps/db-migrations/src/sql/SFASIndividuals/Alter-phone-number-type.sql

@@ -0,0 +1,4 @@
+ALTER TABLE
+    sims.sfas_individuals
+ALTER COLUMN
+    phone_number TYPE BIGINT;

sources/packages/backend/apps/db-migrations/src/sql/SFASIndividuals/Rollback-alter-phone-number-type.sql

@@ -0,0 +1,4 @@
+ALTER TABLE
+    sims.sfas_individuals
+ALTER COLUMN
+    phone_number TYPE INT;

sources/packages/backend/libs/integrations/src/sfas-integration/sfas-integration.processing.service.ts

@@ -53,6 +53,11 @@ export class SFASIntegrationProcessingService {
     for (const filePath of filePaths) {
       await this.processFile(filePath, processSummary);
     }
+    if (!filePaths.length) {
+      processSummary.info(
+        "There are no files to be processed, but post-file import operations will be executed.",
+      );
+    }
     await this.postFileImportOperations(!!filePaths.length, processSummary);
   }
 

sources/packages/backend/libs/sims-db/src/entities/sfas-application.model.ts

@@ -136,7 +136,9 @@ export class SFASApplication extends BaseSFASApplicationModel {
    */
   @Column({
     name: "application_number",
+    type: "bigint",
     nullable: true,
+    transformer: numericTransformer,
   })
   applicationNumber?: number;
 
@@ -191,7 +193,9 @@ export class SFASApplication extends BaseSFASApplicationModel {
    */
   @Column({
     name: "gross_income_previous_year",
+    type: "numeric",
     nullable: true,
+    transformer: numericTransformer,
   })
   grossIncomePreviousYear?: number;
   /**

sources/packages/backend/libs/sims-db/src/entities/sfas-individual.model.ts

@@ -273,7 +273,9 @@ export class SFASIndividual extends BaseModel {
    */
   @Column({
     name: "phone_number",
+    type: "bigint",
     nullable: true,
+    transformer: numericTransformer,
   })
   phoneNumber?: number;
   /**