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projects/gorm: example updates violate rules #190

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22 changes: 11 additions & 11 deletions projects/gorm/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,33 +7,33 @@
)

// University model
type University struct {

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Table universities must have a unique non-id column
gorm.Model
Name string `gorm:"type:varchar(200);unique;not null"`
Name string `gorm:"type:varchar(200);not null"`
Location string `gorm:"type:varchar(100);not null"`
EstablishedDate time.Time `gorm:"type:date"`
Departments []Department // One-to-Many relationship: A University has many Departments
}

// Department model
type Department struct {

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Foreign key fk_universities_departments must not be nullable
gorm.Model
Name string `gorm:"type:varchar(100);unique;not null"`
HeadOfDepartment string `gorm:"type:varchar(100)"`
UniversityID uint `gorm:"not null"`
Name string `gorm:"type:varchar(100);unique;not null"`
HeadOfDepartment string `gorm:"type:varchar(100)"`
UniversityID uint
University University `gorm:"constraint:OnDelete:CASCADE"`
Students []Student // One-to-Many relationship: A Department has many Students
}

// Student model
type Student struct {

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Foreign key fk_departments_students must have a column name ending with '_id'
gorm.Model
FirstName string `gorm:"type:varchar(50);not null"`
LastName string `gorm:"type:varchar(50);not null"`
StudentIDNumber string `gorm:"type:varchar(20);unique;not null"`
DateOfBirth time.Time `gorm:"type:date"`
Email string `gorm:"type:varchar(255);unique;not null"`
EnrollmentDate time.Time `gorm:"autoCreateTime;type:date"`
DepartmentID *uint
FirstName string `gorm:"type:varchar(50);not null"`
LastName string `gorm:"type:varchar(50);not null"`
StudentIDNumber string `gorm:"type:varchar(20);unique;not null"`
DateOfBirth time.Time `gorm:"type:date"`
Email string `gorm:"type:varchar(255);unique;not null"`
EnrollmentDate time.Time `gorm:"autoCreateTime;type:date"`
DepartmentID *uint `gorm:"column:department_link"`
Department *Department `gorm:"constraint:OnDelete:SET NULL;"` // Belongs-to relationship, SET NULL on delete
}
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