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View

view

View representing the result of a Query.

ColType: TypeAlias = str | list[str] module-attribute

T = TypeVar('T') module-attribute

Col

Column in a view, behaving like a string with some special attributes.

View(database: Database, pages: list[Page], query: DBQueryBuilder)

columns: list[str] property

Columns/properties of the database view aligned with the elements of a row.

database = database instance-attribute

default_limit = 10 instance-attribute

has_icon: bool property

has_id: bool property

has_index: bool property

is_empty: bool property

Is this view empty?

__bool__() -> bool

Overwrite default behaviour.

__iter__() -> Iterator[Page]

Iterate over the pages in the view.

__len__()

__repr__() -> str

__str__() -> str

apply(func: Callable[[Page], T]) -> list[T]

Apply function to all pages in view.

Parameters:

Name Type Description Default
func Callable[[Page], T]

function taking a Page as input

 required

as_table(tablefmt: str | None = None) -> str

Return the view in a given string table format.

Some table formats:

  • plain: no pseudographics
  • simple: Pandoc's simple table, i.e. only dashes to separate header from content
  • github: GitHub flavored Markdown
  • simple_grid: uses dashes & pipes to separate cells
  • html: standard html markup

Find more table formats under: astanin/python-tabulate#table-format

clone() -> View

Clone the current view.

filter()

Filter the view.

get_page(idx: int) -> Page

Retrieve a page by index of the view.

get_row(idx: int) -> tuple[Any, ...]

head(num: int) -> View

Keep only the first num elements in view.

limit(num: int) -> View

Alias for head

reload() -> View

Reload all pages by re-executing the query that generated the view.

reset() -> View

Reset the view, i.e. remove filtering, index and sorting.

reverse() -> View

Reverse the order of the rows.

search_page(name: str) -> SList[Page]

Retrieve a page from this view by name

select(*cols: str) -> View

Select columns for the view

show(*, simple: bool | None = None)

Show the database as human-readable table.

sort()

Sort the view with respect to some columns.

tail(num: int) -> View

Keep only the last num elements in view.

to_pages() -> list[Page]

Convert the view to a simple list of pages.

to_pandas() -> pd.DataFrame

Convert the view to a pandas dataframe.

to_rows() -> list[tuple[Any, ...]]

with_icon(name='icon') -> View

Show icons in HTML output.

with_id(name: str = 'id') -> View

Add an id column to the view.

with_index(name='index') -> View

Add an index column to the view.

without_icon() -> View

Don't show icons in HTML output.

without_id() -> View

Remove id column from the view.

without_index() -> View

Remove index column from the view.