spa-api/app/Models/ProjectModal.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Relations\HasOne;

/**
 * 项目表
 */
class ProjectModal extends Model
{
    //
    protected $table = 'projects';

    protected $guarded  = [];

    /**
     * 用户关联
     * @return HasOne
     */
    public function user(): HasOne
    {
        return $this->hasOne(UserModal::class, 'id', 'user_id');
    }

    /**
     * 作者关联
     * @return HasOne
     */
    public function author(): HasOne
    {
        return $this->hasOne(UserModal::class, 'id', 'author_id');
    }

    /**
     * 标签关联
     * @return BelongsToMany
     */
    public function labels(): BelongsToMany
    {
        return $this->belongsToMany(LabelModal::class, 'project_labels_relations', 'project_id', 'label_id');
    }

    /**
     * 截图关联
     * @return HasMany
     */
    public function screenshots(): HasMany
    {
        return $this->hasMany(ScreenshotModal::class, 'project_id', 'id');
    }

    /**
     * 框架关联
     * @return BelongsToMany
     */
    public function frameworks(): BelongsToMany
    {
        return $this->belongsToMany(FrameworkModal::class, 'project_frameworks_relations', 'project_id', 'framework_id');
    }

    /**
     * 技术栈关联
     * @return BelongsToMany
     */
    public function technologyStacks(): BelongsToMany
    {
        return $this->belongsToMany(TechnologyStackModal::class, 'project_technology_stacks_relations', 'project_id', 'technology_stack_id');
    }

    /**
     * 功能关联
     * @return HasMany
     */
    public function features(): HasMany
    {
        return $this->hasMany(FeatureModal::class, 'project_id', 'id');
    }

    /**
     * 分类关联
     * @return HasOne
     */
    public function category(): HasOne
    {
        return $this->hasOne(CategoryModal::class, 'id', 'category_id');
    }
}