Where Filters (Complex filter statements)

The Fluent Builder supports complex filters, which means you can add WHERE, AND, and OR clauses with complex filter statements.

WhereFilter

The WhereFilter method adds a WHERE filter statement enclosed in parenthesis to the query. Subsequent WhereFilter method calls adds an AND filter statement to the query.

The WhereFilter method can be combined with the WithFilter and WithOrFilter methods to add AND and OR filters respectively within the filter statement.

int minAge = 20;
int maxAge = 50;
int userTypeId = 4;

var builder = SimpleBuilder.CreateFluent()
    .Select($"FirstName, LastName, Age, Role")
    .From($"User")
    .WhereFilter($"Age >= {minAge}").WithFilter($"Age < {maxAge}")
    .Where($"UserTypeId = {userTypeId}");

The generated SQL will be:

SELECT FirstName, LastName, Age, Role
FROM User
WHERE (Age >= @p0 AND Age < @p1) AND UserTypeId = @p2

Another example:

int minAge = 20;
int maxAge = 50;
string adminRole = "Admin";
string userRole = "User";

var builder = SimpleBuilder.CreateFluent()
    .Select($"FirstName, LastName, Age, Role")
    .From($"User")
    .WhereFilter($"Age >= {minAge}").WithFilter($"Age < {maxAge}")
    .WhereFilter($"Role = {adminRole}").WithOrFilter($"Role = {userRole}").WithOrFilter($"Role IS NULL");

The generated SQL will be:

SELECT FirstName, LastName, Age, Role
FROM User
WHERE (Age >= @p0 AND Age < @p1) AND (Role = @p2 OR Role = @p3 OR Role IS NULL)

OrWhereFilter

The OrWhereFilter method adds an OR filter statement enclosed in parenthesis to the query.

The OrWhereFilter method can be combined with the WithFilter and WithOrFilter methods to add AND and OR filters respectively within the filter statement.

int userTypeId = 4;
int minAge = 30;
int maxAge = 65;
string role = "User";

var builder = SimpleBuilder.CreateFluent()
    .Select($"FirstName, LastName, Age, Role")
    .From($"User")
    .Where($"UserTypeId = {userTypeId}")
    .OrWhereFilter($"Age >= {minAge}").WithFilter($"Age < {maxAge}")
    .OrWhereFilter($"Role = {role}").WithOrFilter($"Role IS NULL");

The generated SQL will be:

SELECT FirstName, LastName, Age, Role
FROM User
WHERE UserTypeId = @p0 OR (Age >= @p1 AND Age < @p2) OR (Role = @p3 OR Role IS NULL)

Another example:

int minAge = 20;
int maxAge = 50;
var roles = new [] { "Admin", "User" };
string userRole = "User";

var builder = SimpleBuilder.CreateFluent()
    .Select($"FirstName, LastName, Age, Role")
    .From($"User")
    .WhereFilter($"Role IN {roles}").WithOrFilter($"Role IS NULL")
    .OrWhereFilter($"Age >= {minAge}").WithFilter($"Age < {maxAge}")
    .OrWhere($"UserTypeId = {userTypeId}");

The generated SQL will be:

SELECT FirstName, LastName, Age, Role
FROM User
WHERE (Role IN @p0 OR Role IS NULL) OR (Age >= @p1 AND Age < @p2) OR UserTypeId = @p3

Table of Contents

Where Filters (Complex filter statements)

WhereFilter

OrWhereFilter