Update

server/src/main/java/io/flexwork/modules/teams/domain/TeamRequest.java

@@ -13,11 +13,9 @@
 import jakarta.persistence.ManyToOne;
 import jakarta.persistence.Table;
 import java.time.LocalDate;
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
+import lombok.*;
 
+@EqualsAndHashCode(callSuper = false)
 @Entity
 @Table(name = "fw_team_request")
 @Data

server/src/main/java/io/flexwork/modules/teams/domain/Workflow.java

@@ -1,31 +1,22 @@
 package io.flexwork.modules.teams.domain;
 
-import jakarta.persistence.CascadeType;
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.GenerationType;
-import jakarta.persistence.Id;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.OneToMany;
-import jakarta.persistence.Table;
+import io.flexwork.modules.audit.AbstractAuditingEntity;
+import jakarta.persistence.*;
 import java.util.Set;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.NoArgsConstructor;
 
+@EqualsAndHashCode(callSuper = false)
 @Entity
 @Table(name = "fw_workflow")
 @Data
 @Builder
 @NoArgsConstructor
 @AllArgsConstructor
-public class Workflow {
+public class Workflow extends AbstractAuditingEntity<Long> {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
@@ -71,4 +62,16 @@ public class Workflow {
             nullable = false,
             columnDefinition = "INT DEFAULT 1000000")
     private Integer level3EscalationTimeout;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(
+            name = "parent_workflow_id",
+            foreignKey = @ForeignKey(name = "fk_workflow_parent_workflow"))
+    private Workflow parentWorkflow; // Reference to the parent workflow
+
+    @Column(name = "cloned_from_global", nullable = false)
+    private boolean clonedFromGlobal;
+
+    @Column(columnDefinition = "TEXT")
+    private String tags;
 }

server/src/main/java/io/flexwork/modules/teams/repository/WorkflowRepository.java

@@ -41,4 +41,17 @@ Optional<Integer> findEscalationTimeoutByLevel(
     @EntityGraph(attributePaths = {"states", "transitions", "owner"})
     @Query("SELECT w FROM Workflow w WHERE w.id = :workflowId")
     Optional<Workflow> findWithDetailsById(@Param("workflowId") Long workflowId);
+
+    @Query(
+            """
+        SELECT w
+        FROM Workflow w
+        WHERE w.visibility = 'PUBLIC'
+        AND w.id NOT IN (
+            SELECT tws.workflow.id
+            FROM TeamWorkflowSelection tws
+            WHERE tws.team.id = :teamId
+        )
+    """)
+    List<Workflow> findGlobalWorkflowsNotLinkedToTeam(@Param("teamId") Long teamId);
 }

server/src/main/java/io/flexwork/modules/teams/service/WorkflowService.java

@@ -317,4 +317,16 @@ public WorkflowDetailedDTO updateWorkflow(
 
         return updatedWorkflow;
     }
+
+    /**
+     * List global workflows not linked to the given team.
+     *
+     * @param teamId the ID of the team
+     * @return List of WorkflowDTOs representing the global workflows
+     */
+    public List<WorkflowDTO> listGlobalWorkflowsNotLinkedToTeam(Long teamId) {
+        return workflowRepository.findGlobalWorkflowsNotLinkedToTeam(teamId).stream()
+                .map(workflowMapper::toDto)
+                .toList();
+    }
 }

server/src/main/java/io/flexwork/modules/teams/service/dto/WorkflowDTO.java

@@ -21,4 +21,7 @@ public class WorkflowDTO {
     private Integer level1EscalationTimeout;
     private Integer level2EscalationTimeout;
     private Integer level3EscalationTimeout;
+    private Long parentWorkflowId;
+    private boolean clonedFromGlobal;
+    private String tags;
 }

server/src/main/java/io/flexwork/modules/teams/service/mapper/WorkflowMapper.java

@@ -13,6 +13,7 @@
 public interface WorkflowMapper {
 
     @Mapping(source = "owner.id", target = "ownerId")
+    @Mapping(source = "parentWorkflow.id", target = "parentWorkflowId")
     WorkflowDTO toDto(Workflow workflow);
 
     Workflow toEntity(WorkflowDTO workflowDTO);

server/src/main/java/io/flexwork/modules/teams/web/rest/WorkflowController.java

@@ -92,6 +92,19 @@ public ResponseEntity<List<WorkflowDTO>> getWorkflowsByTeam(@PathVariable Long t
         return ResponseEntity.ok(workflows);
     }
 
+    /**
+     * Get global workflows not linked to a specific team.
+     *
+     * @param teamId the ID of the team
+     * @return List of WorkflowDTOs representing global workflows not linked to the team
+     */
+    @GetMapping("/teams/{teamId}/global-workflows-not-linked-yet")
+    public ResponseEntity<List<WorkflowDTO>> getGlobalWorkflowsNotLinkedToTeam(
+            @RequestParam Long teamId) {
+        List<WorkflowDTO> workflows = workflowService.listGlobalWorkflowsNotLinkedToTeam(teamId);
+        return ResponseEntity.ok(workflows);
+    }
+
     /**
      * Endpoint to retrieve all valid target states for a given workflow and current state ID, with
      * an option to include the current state itself.

tools/liquibase/src/main/resources/config/liquibase/tenant/changelog/001_request_workflow_tables.xml

@@ -50,6 +50,25 @@
 				defaultValue="1000000">
 				<constraints nullable="false" />
 			</column>
+			<!--To support cloning and referencing global workflows -->
+			<!--If a workflow is cloned from another workflow, this column stores 
+				the id of the original workflow. -->
+			<!--If the workflow is created from scratch, the value is NULL. -->
+			<column name="parent_workflow_id" type="BIGINT">
+				<constraints nullable="true" />
+			</column>
+			<!--To track if a workflow is cloned from a global workflow for better 
+				visibility -->
+			<column name="cloned_from_global" type="BOOLEAN"
+				defaultValue="false">
+				<constraints nullable="false" />
+			</column>
+			<!--To support tagging workflows for better categorization and searchability -->
+			<column name="tags" type="TEXT" />
+			<column name="created_by" type="bigint" />
+			<column name="created_at" type="timestamptz" />
+			<column name="modified_by" type="bigint" />
+			<column name="modified_at" type="timestamptz" />
 		</createTable>
 
 		<!-- Add foreign key constraint to fw_team for owner_id -->
@@ -58,6 +77,21 @@
 			referencedTableName="fw_team" referencedColumnNames="id"
 			onDelete="CASCADE" constraintName="fk_workflow_owner_team" />
 
+		<addForeignKeyConstraint
+			baseTableName="fw_workflow" baseColumnNames="parent_workflow_id"
+			referencedTableName="fw_workflow" referencedColumnNames="id"
+			constraintName="fk_workflow_parent_workflow" />
+
+		<addForeignKeyConstraint
+			baseTableName="fw_workflow" baseColumnNames="created_by"
+			referencedTableName="fw_user" referencedColumnNames="id"
+			constraintName="fk_workflow_created_by_user" />
+
+		<addForeignKeyConstraint
+			baseTableName="fw_workflow" baseColumnNames="modified_by"
+			referencedTableName="fw_user" referencedColumnNames="id"
+			constraintName="fk_workflow_last_modified_by_user" />
+
 		<createTable tableName="fw_team_workflow_selection">
 			<column name="id" type="BIGINT" autoIncrement="true">
 				<constraints primaryKey="true" nullable="false" />