feat(wren-ai-service): Add Relationship Type Validation and Language Support for semantics description

[paopa]

Changes

1. Added relationship type validation to filter out unexpected relationship types

• Introduced RelationType enum to strictly define valid relationship types (ONE_TO_ONE, ONE_TO_MANY, MANY_TO_ONE)
• Added validation in the validated() function to filter out relationships with invalid types
• Updated ModelRelationship to use the RelationType enum for type checking

2. Added language support for relationship recommendations

• Added language parameter throughout the pipeline
• Updated prompt templates to include language configuration
• Made language configurable through the API with a default of "English"

3. Code improvements

• Added proper type hints and validation
• Improved error handling and logging
• Updated API documentation

Example

Before validation:

{
  "relationships": [
    {"type": "MANY_TO_ONE", "name": "valid"},
    {"type": "INVALID_TYPE", "name": "filtered"},
    {"type": "ONE_TO_MANY", "name": "valid"}
  ]
}

After validation:

{
  "relationships": [
    {"type": "MANY_TO_ONE", "name": "valid"},
    {"type": "ONE_TO_MANY", "name": "valid"}
  ]
}

Testing

{
  "mdl": "{\"catalog\":\"canner-cml\",\"schema\":\"spider\",\"models\":[{\"name\":\"Course\",\"properties\":{},\"refSql\":\"select * from wrenai.spider.\\\"college_3-Course\\\"\",\"columns\":[{\"name\":\"CID\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"CID\",\"properties\":{}},{\"name\":\"CName\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"CName\",\"properties\":{}},{\"name\":\"Credits\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Credits\",\"properties\":{}},{\"name\":\"Instructor\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Instructor\",\"properties\":{}},{\"name\":\"Days\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Days\",\"properties\":{}},{\"name\":\"Hours\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Hours\",\"properties\":{}},{\"name\":\"DNO\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"DNO\",\"properties\":{}},{\"name\":\"Faculty\",\"type\":\"Faculty\",\"notNull\":true,\"isCalculated\":false,\"relationship\":\"Course_Faculty\",\"properties\":{}},{\"name\":\"Department\",\"type\":\"Department\",\"notNull\":true,\"isCalculated\":false,\"relationship\":\"Course_Department\",\"properties\":{}}],\"primaryKey\":\"CID\"},{\"name\":\"Department\",\"properties\":{},\"refSql\":\"select * from wrenai.spider.\\\"college_3-Department\\\"\",\"columns\":[{\"name\":\"DNO\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"DNO\",\"properties\":{}},{\"name\":\"Division\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Division\",\"properties\":{}},{\"name\":\"DName\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"DName\",\"properties\":{}},{\"name\":\"Room\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Room\",\"properties\":{}},{\"name\":\"Building\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Building\",\"properties\":{}},{\"name\":\"DPhone\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"DPhone\",\"properties\":{}}],\"primaryKey\":\"DNO\"},{\"name\":\"Enrolled_in\",\"properties\":{},\"refSql\":\"select * from wrenai.spider.\\\"college_3-Enrolled_in\\\"\",\"columns\":[{\"name\":\"StuID\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"StuID\",\"properties\":{}},{\"name\":\"CID\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"CID\",\"properties\":{}},{\"name\":\"Grade\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Grade\",\"properties\":{}},{\"name\":\"Student\",\"type\":\"Student\",\"notNull\":true,\"isCalculated\":false,\"relationship\":\"Enrolled_in_Student\",\"properties\":{}},{\"name\":\"Course\",\"type\":\"Course\",\"notNull\":true,\"isCalculated\":false,\"relationship\":\"Enrolled_in_Course\",\"properties\":{}},{\"name\":\"Gradeconversion\",\"type\":\"Gradeconversion\",\"notNull\":true,\"isCalculated\":false,\"relationship\":\"Enrolled_in_Gradeconversion\",\"properties\":{}}],\"primaryKey\":\"\"},{\"name\":\"Faculty\",\"properties\":{},\"refSql\":\"select * from wrenai.spider.\\\"college_3-Faculty\\\"\",\"columns\":[{\"name\":\"FacID\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"FacID\",\"properties\":{}},{\"name\":\"Lname\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Lname\",\"properties\":{}},{\"name\":\"Fname\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Fname\",\"properties\":{}},{\"name\":\"Rank\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Rank\",\"properties\":{}},{\"name\":\"Sex\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Sex\",\"properties\":{}},{\"name\":\"Phone\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Phone\",\"properties\":{}},{\"name\":\"Room\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Room\",\"properties\":{}},{\"name\":\"Building\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Building\",\"properties\":{}}],\"primaryKey\":\"FacID\"},{\"name\":\"Gradeconversion\",\"properties\":{},\"refSql\":\"select * from wrenai.spider.\\\"college_3-Gradeconversion\\\"\",\"columns\":[{\"name\":\"lettergrade\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"lettergrade\",\"properties\":{}},{\"name\":\"gradepoint\",\"type\":\"FLOAT\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"gradepoint\",\"properties\":{}}],\"primaryKey\":\"lettergrade\"},{\"name\":\"Member_of\",\"properties\":{},\"refSql\":\"select * from wrenai.spider.\\\"college_3-Member_of\\\"\",\"columns\":[{\"name\":\"FacID\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"FacID\",\"properties\":{}},{\"name\":\"DNO\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"DNO\",\"properties\":{}},{\"name\":\"Appt_Type\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Appt_Type\",\"properties\":{}},{\"name\":\"Faculty\",\"type\":\"Faculty\",\"notNull\":true,\"isCalculated\":false,\"relationship\":\"Member_of_Faculty\",\"properties\":{}},{\"name\":\"Department\",\"type\":\"Department\",\"notNull\":true,\"isCalculated\":false,\"relationship\":\"Member_of_Department\",\"properties\":{}}],\"primaryKey\":\"\"},{\"name\":\"Minor_in\",\"properties\":{},\"refSql\":\"select * from wrenai.spider.\\\"college_3-Minor_in\\\"\",\"columns\":[{\"name\":\"StuID\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"StuID\",\"properties\":{}},{\"name\":\"DNO\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"DNO\",\"properties\":{}},{\"name\":\"Student\",\"type\":\"Student\",\"notNull\":true,\"isCalculated\":false,\"relationship\":\"Minor_in_Student\",\"properties\":{}},{\"name\":\"Department\",\"type\":\"Department\",\"notNull\":true,\"isCalculated\":false,\"relationship\":\"Minor_in_Department\",\"properties\":{}}],\"primaryKey\":\"\"},{\"name\":\"Student\",\"properties\":{},\"refSql\":\"select * from wrenai.spider.\\\"college_3-Student\\\"\",\"columns\":[{\"name\":\"StuID\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"StuID\",\"properties\":{}},{\"name\":\"LName\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"LName\",\"properties\":{}},{\"name\":\"Fname\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Fname\",\"properties\":{}},{\"name\":\"Age\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Age\",\"properties\":{}},{\"name\":\"Sex\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Sex\",\"properties\":{}},{\"name\":\"Major\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Major\",\"properties\":{}},{\"name\":\"Advisor\",\"type\":\"INTEGER\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"Advisor\",\"properties\":{}},{\"name\":\"city_code\",\"type\":\"VARCHAR\",\"notNull\":false,\"isCalculated\":false,\"expression\":\"city_code\",\"properties\":{}}],\"primaryKey\":\"StuID\"}],\"relationships\":[{\"name\":\"Course_Faculty\",\"models\":[\"Course\",\"Faculty\"],\"joinType\":\"MANY_TO_ONE\",\"condition\":\"Course.Instructor = Faculty.FacID\"},{\"name\":\"Course_Department\",\"models\":[\"Course\",\"Department\"],\"joinType\":\"MANY_TO_ONE\",\"condition\":\"Course.DNO = Department.DNO\"},{\"name\":\"Enrolled_in_Student\",\"models\":[\"Enrolled_in\",\"Student\"],\"joinType\":\"MANY_TO_ONE\",\"condition\":\"Enrolled_in.StuID = Student.StuID\"},{\"name\":\"Enrolled_in_Course\",\"models\":[\"Enrolled_in\",\"Course\"],\"joinType\":\"MANY_TO_ONE\",\"condition\":\"Enrolled_in.CID = Course.CID\"},{\"name\":\"Enrolled_in_Gradeconversion\",\"models\":[\"Enrolled_in\",\"Gradeconversion\"],\"joinType\":\"MANY_TO_ONE\",\"condition\":\"Enrolled_in.Grade = Gradeconversion.lettergrade\"},{\"name\":\"Member_of_Faculty\",\"models\":[\"Member_of\",\"Faculty\"],\"joinType\":\"MANY_TO_ONE\",\"condition\":\"Member_of.FacID = Faculty.FacID\"},{\"name\":\"Member_of_Department\",\"models\":[\"Member_of\",\"Department\"],\"joinType\":\"MANY_TO_ONE\",\"condition\":\"Member_of.DNO = Department.DNO\"},{\"name\":\"Minor_in_Student\",\"models\":[\"Minor_in\",\"Student\"],\"joinType\":\"MANY_TO_ONE\",\"condition\":\"Minor_in.StuID = Student.StuID\"},{\"name\":\"Minor_in_Department\",\"models\":[\"Minor_in\",\"Department\"],\"joinType\":\"MANY_TO_ONE\",\"condition\":\"Minor_in.DNO = Department.DNO\"}],\"metrics\":[],\"cumulativeMetrics\":[],\"enumDefinitions\":[],\"views\":[],\"macros\":[]}",
  "project_id": "123",
  "configuration": {
    "language": "English"
  }
}

[cyyeh]

LGTM