class Focus::StringExpression

Direct Known Subclasses

Defined in:

focus/expressions/string_expression.cr

Constructors

Instance Method Summary

Instance methods inherited from class Focus::Expression

accept(visitor : SqlVisitor) : Nil accept, aliased(alias_str : String) : Focus::AliasedExpression aliased, in_list(expressions : Array(Focus::Expression)) : Focus::BoolExpression
in_list(statement : Focus::SelectStatement) : Focus::BoolExpression
in_list(*expressions : Focus::Expression) : Focus::BoolExpression in_list, is_not_null : Focus::BoolExpression is_not_null, is_null : Focus::BoolExpression is_null, not_in_list(expressions : Array(Focus::Expression)) : Focus::BoolExpression
not_in_list(statement : Focus::SelectStatement) : Focus::BoolExpression
not_in_list(*expressions : Focus::Expression) : Focus::BoolExpression not_in_list

Constructor Detail

def self.new(inner : Focus::Expression | Nil = nil) #

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def self.new_string_func(func_name : String, *expressions : Focus::Expression) : StringExpression #

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Instance Method Detail

def between(min : Focus::StringExpression, max : Focus::StringExpression) : Focus::BoolExpression #

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def concat(rhs : Focus::Expression) : Focus::StringExpression #

arg type is Focus::Expression because the database will automatically cast the types to string which allows SELECT 'Price: $' || 100 AS product_price;


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def eq(rhs : Focus::StringExpression) : Focus::BoolExpression #

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def greater_than(rhs : Focus::StringExpression) : Focus::BoolExpression #

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def greater_than_eq(rhs : Focus::StringExpression) : Focus::BoolExpression #

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def inner : Focus::Expression | Nil #

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def is_distinct_from(rhs : Focus::StringExpression) : Focus::BoolExpression #

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def is_not_distinct_from(rhs : Focus::StringExpression) : Focus::BoolExpression #

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def less_than(rhs : Focus::StringExpression) : Focus::BoolExpression #

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def less_than_eq(rhs : Focus::StringExpression) : Focus::BoolExpression #

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def like(pattern : Focus::StringExpression) : Focus::BoolExpression #

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def not_between(min : Focus::StringExpression, max : Focus::StringExpression) : Focus::BoolExpression #

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def not_eq(rhs : Focus::StringExpression) : Focus::BoolExpression #

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def not_like(pattern : Focus::StringExpression) : Focus::BoolExpression #

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