ApplyFieldSelection applies field selection operator fs to gorm instance db.

ApplyFiltering applies filtering operator f to gorm instance db.

ApplyPagination applies pagination operator p to gorm instance db.

ApplySorting applies sorting operator s to gorm instance db.

FilteringToGorm returns GORM Plain SQL representation of the filtering expression.

FilterStringToGorm is a shortcut to parse a filter string using default FilteringParser implementation and call FilteringToGorm on the returned filtering expression.

FromContext returns the *Transaction value stored in ctx, if any.

LogicalOperatorToGorm returns GORM Plain SQL representation of the logical operator.

NewContext returns a new Context that carries value txn.

NullConditionToGorm returns GORM Plain SQL representation of the null condition.

NumberConditionToGorm returns GORM Plain SQL representation of the number condition.

StringConditionToGorm returns GORM Plain SQL representation of the string condition.

UnaryServerInterceptor returns grpc.UnaryServerInterceptor that manages a `*Transaction` instance.

Transaction serves as a wrapper around `*gorm.DB` instance.