343 lines
11 KiB
Python
343 lines
11 KiB
Python
##############################################################################
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# ScoDoc
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# Copyright (c) 1999 - 2023 Emmanuel Viennet. All rights reserved.
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# See LICENSE
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##############################################################################
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"""Classes pour aider à construire des tables de résultats
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"""
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from collections import defaultdict
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class Table:
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"""Construction d'une table de résultats
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table = Table()
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row = table.new_row(id="xxx", category="yyy")
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row.new_cell( col_id, title, content [,classes] [, idx], [group], [keys:dict={}] )
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rows = table.get_rows([category="yyy"])
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table.sort_rows(key [, reverse])
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table.set_titles(titles)
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table.update_titles(titles)
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table.set_column_groups(groups: list[str])
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table.sort_columns()
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table.insert_group(group:str, [after=str], [before=str])
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"""
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def __init__(
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self,
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selected_row_id: str = None,
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classes: list[str] = None,
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data: dict[str, str] = None,
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):
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self.rows: list["Row"] = []
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"ordered list of Rows"
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self.row_by_id: dict[str, "Row"] = {}
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self.classes = classes or []
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"list of classes for the table element"
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self.column_ids = []
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"ordered list of columns ids"
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self.data = data or {}
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"data-xxx"
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self.groups = []
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"ordered list of column groups names"
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self.head = []
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self.foot = []
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self.column_group = {}
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"the group of the column: { col_id : group }"
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self.column_index: dict[str, int] = {}
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"index the column: { col_id : int }"
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self.column_classes: defaultdict[str, list[str]] = defaultdict(lambda: [])
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"classe ajoutée à toutes les cellules de la colonne: { col_id : class }"
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self.selected_row_id = selected_row_id
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"l'id de la ligne sélectionnée"
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self.titles = {}
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"Column title: { col_id : titre }"
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self.head_title_row: "Row" = Row(self, "title_head", cell_elt="th")
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self.foot_title_row: "Row" = Row(self, "title_foot", cell_elt="th")
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self.empty_cell = Cell.empty()
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def get_row_by_id(self, row_id) -> "Row":
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"return the row, or None"
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return self.row_by_id.get(row_id)
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def _prepare(self):
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"""Sort table elements before generation"""
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self.sort_columns()
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def html(self, classes: list[str] = None, data: dict[str, str] = None) -> str:
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"""HTML version of the table
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classes are prepended to existing classes
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data may replace existing data
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"""
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self._prepare()
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classes = classes + self.classes
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data = self.data.copy().update(data)
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elt_class = f"""class="{' '.join(classes)}" """ if classes else ""
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attrs_str = " ".join(f' data-{k}="v"' for k, v in data.items())
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newline = "\n"
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header = (
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f"""
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<thead>
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{ newline.join(row.html() for row in self.head) }
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</thead>
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"""
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if self.head
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else ""
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)
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footer = (
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f"""
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<tfoot>
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{ newline.join(row.html() for row in self.foot) }
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</tfoot>
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"""
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if self.foot
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else ""
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)
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return f"""<table {elt_class} {attrs_str}>
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{header}
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{
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newline.join(row.html() for row in self.rows)
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}
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{footer}
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</table>
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"""
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def add_row(self, row: "Row") -> "Row":
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"""Append a new row"""
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self.rows.append(row)
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self.row_by_id[row.id] = row
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return row
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def add_head_row(self, row: "Row") -> "Row":
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"Add a row to table head"
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# row = Row(self, cell_elt="th", category="head")
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self.head.append(row)
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self.row_by_id[row.id] = row
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return row
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def add_foot_row(self, row: "Row") -> "Row":
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"Add a row to table foot"
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self.foot.append(row)
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self.row_by_id[row.id] = row
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return row
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def sort_rows(self, key: callable, reverse: bool = False):
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"""Sort table rows"""
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self.rows.sort(key=key, reverse=reverse)
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def sort_columns(self):
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"""Sort columns ids"""
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groups_order = {group: i for i, group in enumerate(self.groups)}
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self.column_ids.sort(
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key=lambda col_id: (groups_order.get(self.column_group.get(col_id), col_id))
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)
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def insert_group(self, group: str, after: str = None, before: str = None):
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"""Déclare un groupe de colonnes et le place avant ou après un autre groupe.
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Si pas d'autre groupe indiqué, le place après, à droite du dernier.
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Si le group existe déjà, ne fait rien (ne le déplace pas).
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"""
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if group in self.groups:
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return
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other = after or before
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if other is None:
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self.groups.append(group)
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else:
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if not other in self.groups:
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raise ValueError(f"invalid column group '{other}'")
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index = self.groups.index(other)
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if after:
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index += 1
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self.groups.insert(index, group)
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def set_groups(self, groups: list[str]):
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"""Define column groups and set order"""
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self.groups = groups
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def set_titles(self, titles: dict[str, str]):
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"""Set columns titles"""
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self.titles = titles
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def update_titles(self, titles: dict[str, str]):
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"""Set columns titles"""
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self.titles.update(titles)
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def add_title(self, col_id, title: str = None) -> tuple["Cell", "Cell"]:
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"""Record this title,
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and create cells for footer and header if they don't already exist.
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"""
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title = title or ""
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if not col_id in self.titles:
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self.titles[col_id] = title
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cell_head = self.head_title_row.cells.get(
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col_id, self.head_title_row.add_cell(col_id, title, title)
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)
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cell_foot = self.foot_title_row.cells.get(
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col_id, self.foot_title_row.add_cell(col_id, title, title)
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)
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return cell_head, cell_foot
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class Row:
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"""A row."""
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def __init__(
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self,
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table: Table,
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row_id=None,
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category=None,
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cell_elt: str = None,
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classes: list[str] = None,
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):
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self.category = category
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self.cells = {}
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self.cell_elt = cell_elt
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self.classes: list[str] = classes or []
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"classes sur le <tr>"
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self.cur_idx_by_group = defaultdict(lambda: 0)
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self.id = row_id
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self.table = table
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def add_cell(
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self,
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col_id: str,
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title: str,
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content: str,
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group: str = None,
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attrs: list[str] = None,
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classes: list[str] = None,
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data: dict[str, str] = None,
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elt: str = None,
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idx: int = None,
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raw_content=None,
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target_attrs: dict = None,
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target: str = None,
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) -> "Cell":
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"""Create cell and add it to the row.
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classes is a list of css class names
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"""
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if idx is None:
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idx = self.cur_idx_by_group[group]
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self.cur_idx_by_group[group] += 1
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else:
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self.cur_idx_by_group[group] = idx
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self.table.column_index[col_id] = idx
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cell = Cell(
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content,
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classes + [group or ""], # ajoute le nom de groupe aux classes
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elt=elt or self.cell_elt,
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attrs=attrs,
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data=data,
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raw_content=raw_content,
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target=target,
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target_attrs=target_attrs,
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)
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return self.add_cell_instance(col_id, cell, column_group=group, title=title)
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def add_cell_instance(
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self, col_id: str, cell: "Cell", column_group: str = None, title: str = None
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) -> "Cell":
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"""Add a cell to the row.
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Si title est None, il doit avoir été ajouté avec table.add_title().
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"""
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self.cells[col_id] = cell
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if column_group is not None:
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self.table.column_group[col_id] = column_group
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if title is not None:
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self.table.add_title(col_id, title)
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return cell
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def html(self) -> str:
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"""html for row, with cells"""
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elt_class = f"""class="{' '.join(self.classes)}" """ if self.classes else ""
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tr_id = (
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"""id="row_selected" """ if (self.id == self.table.selected_etudid) else ""
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) # TODO XXX remplacer id par une classe
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return f"""<tr {tr_id} {elt_class}>{
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"".join([self.cells.get(col_id,
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self.table.empty_cell).html(
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column_classes=self.table.column_classes.get(col_id)
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)
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for col_id in self.table.column_ids ])
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}</tr>"""
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class BottomRow(Row):
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"""Une ligne spéciale pour le pied de table
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avec un titre à gauche
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(répété sur les colonnes indiquées par left_title_col_ids),
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et automatiquement ajouté au footer.
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"""
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def __init__(
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self, *args, left_title_col_ids: list[str] = None, left_title=None, **kwargs
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):
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super().__init__(*args, **kwargs)
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self.left_title_col_ids = left_title_col_ids
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if left_title is not None:
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self.set_left_title(left_title)
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self.table.add_foot_row(self)
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def set_left_title(self, title: str = ""):
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"Fill left title cells"
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for col_id in self.left_title_col_ids:
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self.add_cell(col_id, None, title)
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class Cell:
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"""Une cellule de table"""
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def __init__(
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self,
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content,
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classes: list[str] = None,
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elt="td",
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attrs: list[str] = None,
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data: dict = None,
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raw_content=None,
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target: str = None,
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target_attrs: dict = None,
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):
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"""if specified, raw_content will be used for raw exports like xlsx"""
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self.content = content
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self.classes: list = classes or []
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self.elt = elt if elt is not None else "td"
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self.attrs = attrs or []
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if self.elt == "th":
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self.attrs["scope"] = "row"
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self.data = data or {}
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self.raw_content = raw_content # not yet used
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self.target = target
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self.target_attrs = target_attrs or {}
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@classmethod
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def empty(cls):
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"create a new empty cell"
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return cls("")
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def __str__(self):
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return str(self.content)
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def html(self, column_classes: list[str] = None) -> str:
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"html for cell"
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attrs_str = f"""class="{' '.join(
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[cls for cls in (self.classes + (column_classes or [])) if cls])
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}" """
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# Autres attributs:
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attrs_str += " ".join([f"{k}={v}" for (k, v) in self.attrs.items()])
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# et data-x
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attrs_str += " ".join([f' data-{k}="v"' for k, v in self.data.items()])
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if (self.target is not None) or self.target_attrs:
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href = f'href="{self.target}"' if self.target else ""
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target_attrs_str = " ".join(
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[f"{k}={v}" for (k, v) in self.target_attrs.items()]
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)
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content = f"<a {href} {target_attrs_str}>{content}</a>"
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return f"""<{self.elt} {attrs_str}>{self.content}</{self.elt}>"""
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