[To Feature ] DESENG-511: Survey translation model

met-api/migrations/versions/274a2774607b_survey_translation_migration.py

@@ -0,0 +1,44 @@
+"""survey translation migration
+
+Revision ID: 274a2774607b
+Revises: e6c320c178fc
+Create Date: 2024-03-05 13:41:19.539004
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '274a2774607b'
+down_revision = 'e6c320c178fc'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('survey_translation',
+    sa.Column('created_date', sa.DateTime(), nullable=False),
+    sa.Column('updated_date', sa.DateTime(), nullable=True),
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('survey_id', sa.Integer(), nullable=False),
+    sa.Column('language_id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=50), nullable=True),
+    sa.Column('form_json', postgresql.JSONB(astext_type=sa.Text()), server_default='{}', nullable=True),
+    sa.Column('created_by', sa.String(length=50), nullable=True),
+    sa.Column('updated_by', sa.String(length=50), nullable=True),
+    sa.ForeignKeyConstraint(['language_id'], ['language.id'], ),
+    sa.ForeignKeyConstraint(['survey_id'], ['survey.id'], ondelete='CASCADE'),
+    sa.PrimaryKeyConstraint('id'),
+    sa.UniqueConstraint('survey_id', 'language_id', name='_survey_language_uc')
+    )
+    op.create_index(op.f('ix_survey_translation_name'), 'survey_translation', ['name'], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_survey_translation_name'), table_name='survey_translation')
+    op.drop_table('survey_translation')
+    # ### end Alembic commands ###

met-api/src/met_api/models/__init__.py

@@ -59,3 +59,4 @@
 from .poll_answers import PollAnswer
 from .poll_responses import PollResponse
 from .language import Language
+from .survey_translation import SurveyTranslation

met-api/src/met_api/models/survey_translation.py

@@ -0,0 +1,94 @@
+"""SurveyTranslation model class.
+
+Manages the Survey Translations.
+"""
+
+from __future__ import annotations
+from .base_model import BaseModel
+from sqlalchemy.dialects import postgresql
+from .db import db
+from sqlalchemy import UniqueConstraint
+
+
+class SurveyTranslation(BaseModel):
+    """Definition of the SurveyTranslation entity."""
+
+    __tablename__ = 'survey_translation'
+
+    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
+    survey_id = db.Column(
+        db.Integer,
+        db.ForeignKey('survey.id', ondelete='CASCADE'),
+        nullable=False,
+    )
+    language_id = db.Column(
+        db.Integer, db.ForeignKey('language.id'), nullable=False
+    )
+    name = db.Column(
+        db.String(50), index=True, nullable=True
+    )  # pre-populate it with the base Survey content is optional so can be nullable
+    form_json = db.Column(
+        postgresql.JSONB(astext_type=db.Text()),
+        nullable=True,
+        server_default='{}',
+    )  # pre-populate it with the base Survey content is optional so can be nullable
+
+    # Add a unique constraint on survey_id and language_id
+    # A survey has only one version in a particular language
+    __table_args__ = (
+        UniqueConstraint(
+            'survey_id', 'language_id', name='_survey_language_uc'
+        ),
+    )
+
+    @staticmethod
+    def get_survey_translation_by_survey_and_language(
+        survey_id=None, language_id=None
+    ):
+        """Get survey translation by survey_id and language_id, or by either one."""
+        query = SurveyTranslation.query
+        if survey_id is not None:
+            query = query.filter_by(survey_id=survey_id)
+        if language_id is not None:
+            query = query.filter_by(language_id=language_id)
+
+        survey_translation_records = query.all()
+        return survey_translation_records
+
+    @staticmethod
+    def create_survey_translation(data):
+        """Create a new survey translation."""
+        survey_translation = SurveyTranslation(
+            survey_id=data['survey_id'],
+            language_id=data['language_id'],
+            name=data.get(
+                'name'
+            ),  # Returns `None` if 'name' is not in `data` as its optional
+            form_json=data.get(
+                'form_json'
+            ),  # Returns `None` if 'form_json' is not in `data` as its optional
+        )
+        db.session.add(survey_translation)
+        db.session.commit()
+        return survey_translation
+
+    @staticmethod
+    def update_survey_translation(survey_translation_id, data):
+        """Update an existing survey translation."""
+        survey_translation = SurveyTranslation.query.get(survey_translation_id)
+        if survey_translation:
+            for key, value in data.items():
+                setattr(survey_translation, key, value)
+            db.session.commit()
+            return survey_translation
+        return None
+
+    @staticmethod
+    def delete_survey_translation(survey_translation_id):
+        """Delete a survey translation."""
+        survey_translation = SurveyTranslation.query.get(survey_translation_id)
+        if survey_translation:
+            db.session.delete(survey_translation)
+            db.session.commit()
+            return True
+        return False