Initial Codes

2026-05-21 15:46:41 -04:00
commit b01ad5ea40
40 changed files with 9102 additions and 0 deletions
@@ -0,0 +1,141 @@
+"""
+Column definition dialog — used for both Add Column and Rename Column operations
+in the Table Designer.
+"""
+from PyQt6.QtWidgets import (
+    QDialog, QVBoxLayout, QHBoxLayout, QFormLayout,
+    QLineEdit, QComboBox, QCheckBox, QDialogButtonBox, QLabel,
+)
+from PyQt6.QtCore import Qt
+
+
+# Common SQL types offered in the dropdown (user can type anything)
+_COMMON_TYPES = [
+    "INT",
+    "BIGINT",
+    "SMALLINT",
+    "TINYINT",
+    "BOOLEAN",
+    "FLOAT",
+    "DOUBLE",
+    "DECIMAL(10,2)",
+    "VARCHAR(255)",
+    "VARCHAR(100)",
+    "CHAR(36)",
+    "TEXT",
+    "LONGTEXT",
+    "DATE",
+    "DATETIME",
+    "TIMESTAMP",
+    "TIME",
+    "JSON",
+    "BLOB",
+    "BINARY(16)",
+]
+
+
+class ColumnDialog(QDialog):
+    """
+    Dialog for adding a new column or renaming an existing one.
+
+    In rename mode only the Name field is shown; in add mode all fields appear.
+    """
+
+    def __init__(self, mode: str = "add", column_name: str = "",
+                 db_type: str = "", parent=None):
+        """
+        Args:
+            mode: "add" | "rename"
+            column_name: pre-filled name (for rename, the old name)
+            db_type: driver db_type string — used to tailor type suggestions
+        """
+        super().__init__(parent)
+        self._mode = mode
+        self._db_type = db_type
+
+        self.setWindowTitle("Add Column" if mode == "add" else "Rename Column")
+        self.setModal(True)
+        self.setMinimumWidth(360)
+        self._build_ui(column_name)
+
+    # ── Properties ────────────────────────────────────────────────────────────
+
+    @property
+    def column_name(self) -> str:
+        return self._name_edit.text().strip()
+
+    @property
+    def column_type(self) -> str:
+        return self._type_combo.currentText().strip()
+
+    @property
+    def nullable(self) -> bool:
+        return self._nullable_cb.isChecked()
+
+    @property
+    def default_value(self) -> str:
+        return self._default_edit.text().strip()
+
+    # ── UI ────────────────────────────────────────────────────────────────────
+
+    def _build_ui(self, column_name: str):
+        root = QVBoxLayout(self)
+
+        form = QFormLayout()
+        form.setLabelAlignment(Qt.AlignmentFlag.AlignRight)
+
+        # Name
+        self._name_edit = QLineEdit(column_name)
+        self._name_edit.setPlaceholderText("column_name")
+        form.addRow("Column name:", self._name_edit)
+
+        if self._mode == "add":
+            # Type
+            self._type_combo = QComboBox()
+            self._type_combo.setEditable(True)
+            self._type_combo.addItems(_COMMON_TYPES)
+            self._type_combo.setCurrentText("VARCHAR(255)")
+            form.addRow("Data type:", self._type_combo)
+
+            # Nullable
+            self._nullable_cb = QCheckBox()
+            self._nullable_cb.setChecked(True)
+            form.addRow("Allow NULL:", self._nullable_cb)
+
+            # Default
+            self._default_edit = QLineEdit()
+            self._default_edit.setPlaceholderText("optional default value")
+            form.addRow("Default:", self._default_edit)
+        else:
+            # Stub widgets so properties don't crash in rename mode
+            self._type_combo = QComboBox()
+            self._nullable_cb = QCheckBox()
+            self._nullable_cb.setChecked(True)
+            self._default_edit = QLineEdit()
+
+        root.addLayout(form)
+
+        if self._mode == "add":
+            note = QLabel(
+                "<i>Changes are applied immediately via ALTER TABLE.</i>"
+            )
+            note.setWordWrap(True)
+            root.addWidget(note)
+
+        # Buttons
+        btns = QDialogButtonBox(
+            QDialogButtonBox.StandardButton.Ok |
+            QDialogButtonBox.StandardButton.Cancel
+        )
+        btns.accepted.connect(self._accept)
+        btns.rejected.connect(self.reject)
+        root.addWidget(btns)
+
+    def _accept(self):
+        if not self.column_name:
+            self._name_edit.setFocus()
+            return
+        if self._mode == "add" and not self.column_type:
+            self._type_combo.setFocus()
+            return
+        self.accept()