Create table class.

data/table.py

@@ -0,0 +1,65 @@
+"""File for Table class."""
+
+from typing import Optional
+import json
+
+from data.category import Category  # pylint: disable=import-error
+
+
+class Table:
+    """Stores a table's information a list of categories."""
+
+    def __init__(self, name: str, message_id: Optional[int] = 0) -> None:
+        self._name: str = name
+        self._message_id: int = message_id
+        self._categories_map: "dict[Category]" = {}
+
+    def __str__(self) -> str:
+        return json.dumps(self.to_dict(), indent=4)
+
+    @property
+    def categories(self) -> "list[Category]":
+        """Returns list of categories."""
+        return self._categories_map.values()
+
+    @property
+    def message_id(self) -> int:
+        """Getter for message id."""
+        return self._message_id
+
+    @message_id.setter
+    def message_id(self, m_id: int) -> None:
+        """Setter for message id."""
+        self._message_id = m_id
+
+    @property
+    def name(self) -> str:
+        """Getter for name."""
+        return self._name
+
+    def add_category(self, category: Category) -> None:
+        """Adds a category to dictionary of categories. Shouldn't already exist."""
+        if category.name not in self._categories_map:
+            self._categories_map[category.name] = category
+
+    def from_dict(self, data: dict) -> None:
+        """Fills out table from passed dictionary."""
+        self.message_id = data["message_id"]
+        for name, cat in data["categories"]:
+            category = Category(name)
+            category.from_dict(cat)
+            self.add_category(category)
+
+    def get_category(self, category_name: str) -> Category:
+        """Retrieves category with the gven name."""
+        return self._categories_map[category_name]
+
+    def to_dict(self) -> dict:
+        """Saves table as a python dictionary."""
+        data = {}
+        data["message_id"] = self.message_id
+        data["categories"] = {}
+        for category in self.categories:
+            data["categories"][category.name] = category.to_dict()
+
+        return data