pub enum ConditionTree<'a> {
And(Vec<Expression<'a>>),
Or(Vec<Expression<'a>>),
Not(Box<Expression<'a>>),
Single(Box<Expression<'a>>),
NoCondition,
NegativeCondition,
Exists(Box<Table<'a>>),
}
Expand description
Tree structures and leaves for condition building.
Variants§
And(Vec<Expression<'a>>)
(left_expression AND right_expression)
Or(Vec<Expression<'a>>)
(left_expression OR right_expression)
Not(Box<Expression<'a>>)
(NOT expression)
Single(Box<Expression<'a>>)
A single expression leaf
NoCondition
A leaf that does nothing to the condition, 1=1
NegativeCondition
A leaf that cancels the condition, 1=0
Exists(Box<Table<'a>>)
Exists condition
Implementations§
Source§impl<'a> ConditionTree<'a>
impl<'a> ConditionTree<'a>
Sourcepub fn and<E>(self, other: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
pub fn and<E>(self, other: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
An AND
statement, is true when both sides are true.
Sourcepub fn or<E>(self, other: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
pub fn or<E>(self, other: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
An OR
statement, is true when one side is true.
Sourcepub fn not<E>(left: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
pub fn not<E>(left: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
A NOT
statement, is true when the expression is false.
Sourcepub fn single<E>(left: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
pub fn single<E>(left: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
A single leaf, is true when the expression is true.
Sourcepub fn exists<E>(select: E) -> ConditionTree<'a>
pub fn exists<E>(select: E) -> ConditionTree<'a>
True if a nested table has any values.
Sourcepub fn invert_if(self, invert: bool) -> ConditionTree<'a>
pub fn invert_if(self, invert: bool) -> ConditionTree<'a>
Inverts the entire condition tree if condition is met.
Trait Implementations§
Source§impl<'a> Clone for ConditionTree<'a>
impl<'a> Clone for ConditionTree<'a>
Source§fn clone(&self) -> ConditionTree<'a>
fn clone(&self) -> ConditionTree<'a>
Returns a copy of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moreSource§impl<'a> Debug for ConditionTree<'a>
impl<'a> Debug for ConditionTree<'a>
Source§impl<'a> Default for ConditionTree<'a>
impl<'a> Default for ConditionTree<'a>
Source§fn default() -> ConditionTree<'a>
fn default() -> ConditionTree<'a>
Returns the “default value” for a type. Read more
Source§impl<'a> From<Compare<'a>> for ConditionTree<'a>
impl<'a> From<Compare<'a>> for ConditionTree<'a>
Source§impl<'a> From<ConditionTree<'a>> for Expression<'a>
impl<'a> From<ConditionTree<'a>> for Expression<'a>
Source§fn from(ct: ConditionTree<'a>) -> Self
fn from(ct: ConditionTree<'a>) -> Self
Converts to this type from the input type.
Source§impl<'a> From<Select<'a>> for ConditionTree<'a>
impl<'a> From<Select<'a>> for ConditionTree<'a>
Source§impl<'a> PartialEq for ConditionTree<'a>
impl<'a> PartialEq for ConditionTree<'a>
impl<'a> StructuralPartialEq for ConditionTree<'a>
Auto Trait Implementations§
impl<'a> Freeze for ConditionTree<'a>
impl<'a> RefUnwindSafe for ConditionTree<'a>
impl<'a> Send for ConditionTree<'a>
impl<'a> Sync for ConditionTree<'a>
impl<'a> Unpin for ConditionTree<'a>
impl<'a> UnwindSafe for ConditionTree<'a>
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<'a, T> Conjunctive<'a> for Twhere
T: Into<Expression<'a>>,
impl<'a, T> Conjunctive<'a> for Twhere
T: Into<Expression<'a>>,
Source§fn and<E>(self, other: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
fn and<E>(self, other: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
Builds an
AND
condition having self
as the left leaf and other
as the right.Source§fn or<E>(self, other: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
fn or<E>(self, other: E) -> ConditionTree<'a>where
E: Into<Expression<'a>>,
Builds an
OR
condition having self
as the left leaf and other
as the right.Source§fn not(self) -> ConditionTree<'a>
fn not(self) -> ConditionTree<'a>
Builds a
NOT
condition having self
as the condition.