更新代码

app/Models/SellerLesson.php

@@ -0,0 +1,136 @@
+<?php
+
+namespace App\Models;
+
+use App\Models\SellerLessonLog;
+use Auth;
+use RuLong\Order\Contracts\Orderable;
+use RuLong\Panel\Models\Storage;
+
+class SellerLesson extends Model implements Orderable
+{
+    protected $dates = [
+        'start_at',
+        'end_at',
+    ];
+
+    public function organ()
+    {
+        return $this->belongsTo(Seller::class, 'seller_id', 'id')->withDefault();
+    }
+
+    public function storage()
+    {
+        return $this->belongsTo(Storage::class)->withDefault();
+    }
+
+    public function category()
+    {
+        return $this->belongsTo(Category::class)->withDefault();
+    }
+
+    protected function getStatusTextAttribute()
+    {
+        if ($this->status == 1) {
+            if ($this->start_at->timestamp > time()) {
+                return "<span style='color:blue'>还没开始</span>";
+            } elseif ($this->end_at->timestamp < time()) {
+                return "<span style='color:yellow'>已经结束</span>";
+            }
+            return "<span style='color:green'>正常</span>";
+
+        } else {
+            return "<span style='color:red'>关闭</span>";
+        }
+    }
+
+    public function logs()
+    {
+        return $this->HasMany(SellerLessonLog::class, 'lesson_id', 'id');
+    }
+
+    public function getTitle()
+    {
+        return $this->title;
+    }
+
+    public function getPrice()
+    {
+        return $this->price;
+    }
+
+    public function getScore()
+    {
+        return 0;
+    }
+
+    public function getStock()
+    {
+        return $this->stock;
+    }
+
+    public function getSellerPrice()
+    {
+        return $this->price;
+    }
+
+    public function deductStock($stock)
+    {
+        $this->decrement('stock', $stock);
+    }
+
+    public function addStock($stock)
+    {
+        $this->increment('stock', $stock);
+    }
+
+    public function getStorage()
+    {
+        return $this->storage;
+    }
+
+    /**
+     * 可报名
+     * @return boolean
+     */
+    public function canCart(): bool
+    {
+        return Cart::where('user_id', Auth::id())->where('lesson_id', $this->id)->count();
+    }
+
+    protected function getCanCartTextAttribute()
+    {
+        return $this->canCart();
+    }
+
+    //是否已购买
+    public function getBuyTextAttribute()
+    {
+        return $this->logs()->where('lesson_id', $this->id)->where('status', 1)->where('user_id', Auth::id())->count() ?? 0;
+    }
+
+    //是否已购买
+    public function getButtonTextAttribute()
+    {
+        if ($this->buy_text) {
+            return "学习中";
+        } elseif ($this->canCart()) {
+            return "已报名";
+        } else {
+            return "立即报名";
+        }
+    }
+
+    //是否已购买
+    public function getButtonValueAttribute()
+    {
+        if ($this->buy_text) {
+            return 1;
+        } elseif ($this->canCart()) {
+            return 2;
+        } else {
+            return 0;
+        }
+    }
+
+}