Row

Struct Row 

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pub struct Row {
    pub values: HashMap<String, Value>,
}
Expand description

Row

Row is implementated as a hashmap. You cannot iterate row without column information.

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§values: HashMap<String, Value>

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impl Row

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pub fn new() -> Self

Create a new row

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pub fn to_vector(&self, columns: &[Column]) -> DcsvResult<Vec<&Value>>

Convert row to vector with given columns

It is totally valid to give partial columns into a row.

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pub fn to_string(&self, columns: &[Column]) -> DcsvResult<String>

Get comma separated row string

This requires columns because a row is not a linear container. Partial column is not an error but valid behaviour.

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pub fn rename_column(&mut self, name: &str, new_name: &str)

Rename column name inside row map

This doesn’t validate column’s name and should comply with column name rule to avoid unintended behaviour.

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pub fn insert_cell(&mut self, key: &str, value: Value)

Insert a new cell(key, value pair) into a row

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pub fn get_cell_value(&self, key: &str) -> Option<&Value>

Get a cell value by a key

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pub fn update_cell_value(&mut self, key: &str, value: Value)

Update a cell’s value with a given value

This doesn’t fail and silently do nothing if key doesn’t exist.

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pub fn change_cell_type( &mut self, key: &str, target_type: ValueType, ) -> DcsvResult<()>

Chagnes a cell’s value type

This method tries to naturally convert cell’s type. Empty text value defaults to “0”.

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pub fn remove_cell(&mut self, key: &str)

Remove a cell by key

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pub fn get_iterator(&self, columns: &[Column]) -> IntoIter<&Value>

Get iterator with given columns

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impl Clone for Row

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fn clone(&self) -> Row

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Row

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for Row

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fn default() -> Self

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

Auto Trait Implementations§

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impl Freeze for Row

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impl RefUnwindSafe for Row

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impl Send for Row

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impl Sync for Row

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impl Unpin for Row

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impl UnwindSafe for Row

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.