Pool

Struct Pool 

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pub struct Pool(/* private fields */);

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impl Pool

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pub fn new() -> Self

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pub fn ensure(&mut self, db_url: &str) -> Result<(), DbError>

ensure that a connection pool for this db_url exist

Note: if that db_url already has an equivalent connection pool, this doesn’t do anything

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pub fn connect(&mut self, db_url: &str) -> Result<PooledConn, DbError>

get a usable database connection from

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pub fn dm(&mut self, db_url: &str) -> Result<DaoManager, DbError>

returns a dao manager which provides api which data is already converted into Dao, Rows and Value

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pub fn connect_mut(&mut self, db_url: &str) -> Result<PooledConn, DbError>

get a usable database connection from

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pub fn db(&mut self, db_url: &str) -> Result<DBPlatform, DbError>

get a database instance with a connection, ready to send sql statements

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pub fn em(&mut self, db_url: &str) -> Result<EntityManager, DbError>

return an entity manager which provides a higher level api

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impl Default for Pool

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fn default() -> Pool

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl Freeze for Pool

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impl !RefUnwindSafe for Pool

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impl Send for Pool

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impl Sync for Pool

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impl Unpin for Pool

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impl !UnwindSafe for Pool

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.