fix: handleTinyGridColumnsSlots方法中node.props.columns不是数组时造成页面无法加载问题

[stwflyfox]

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PR

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• The commit message follows our Commit Message Guidelines
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PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
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Background and solution

node.props.columns不是数组时,会发生异常无法加载页面, 修改判断逻辑，增加 Array.isArray 类型判断

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

[coderabbitai]

Walkthrough

This pull request updates the handleTinyGridColumnsSlots function in the canvas API. The modification ensures that the columns variable is always an array by explicitly checking if node.props?.columns exists as a valid array. If not, it defaults to an empty array, preventing runtime errors during iteration.

Changes

File	Change Summary
packages/canvas/.../useCanvas.js	Updated handleTinyGridColumnsSlots to safely assign columns as an array, avoiding iteration errors on invalid data.

Possibly related PRs

• fix: TinyGrid slot children can not operate #1100: Modifications to handleTinyGridColumnsSlots connect directly with changes in grid slot handling.
• feat: tinyvue grid slot generate code to template #756: Adjustments in grid column and slot processing relate to the improvements made in handleTinyGridColumnsSlots.

Suggested labels

bug

Suggested reviewers

• hexqi
• SonyLeo

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packages/canvas/DesignCanvas/src/api/useCanvas.js

Oops! Something went wrong! :(

ESLint: 8.57.1

ESLint couldn't find the plugin "@typescript-eslint/eslint-plugin".

(The package "@typescript-eslint/eslint-plugin" was not found when loaded as a Node module from the directory "/packages/canvas".)

It's likely that the plugin isn't installed correctly. Try reinstalling by running the following:

npm install @typescript-eslint/eslint-plugin@latest --save-dev

The plugin "@typescript-eslint/eslint-plugin" was referenced from the config file in "packages/canvas/.eslintrc.cjs » @vue/eslint-config-typescript".

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Actionable comments posted: 1

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📥 Commits

Reviewing files that changed from the base of the PR and between cf64f90 and b0fec90.

📒 Files selected for processing (1)

• packages/canvas/DesignCanvas/src/api/useCanvas.js (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (1)

• GitHub Check: push-check

[coderabbitai]

⚠️ Potential issue

Good defensive programming to fix loading issue.

The addition of the Array.isArray check is a solid fix for the bug described in the PR. This prevents runtime errors when node.props.columns exists but isn't an array (e.g., if it's an object or primitive value), which would cause the page to fail to load when attempting to iterate over a non-iterable value.

This solution properly handles edge cases while maintaining the original functionality.