fixed #36

app/Models/Banking/Account.php

@@ -70,6 +70,17 @@ class Account extends Model
         return $this->hasMany('App\Models\Expense\Payment');
     }
 
+    /**
+     * Convert opening balance to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setOpeningBalanceAttribute($value)
+    {
+        $this->attributes['opening_balance'] = (float) $value;
+    }
+
     public function canDelete()
     {
         $error = false;

app/Models/Expense/Bill.php

@@ -84,6 +84,28 @@ class Bill extends Model
         return $this->hasMany('App\Models\Expense\BillHistory');
     }
 
+    /**
+     * Convert amount to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setAmountAttribute($value)
+    {
+        $this->attributes['amount'] = (float) $value;
+    }
+
+    /**
+     * Convert currency rate to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setCurrencyRateAttribute($value)
+    {
+        $this->attributes['currency_rate'] = (float) $value;
+    }
+
     public function scopeDue($query, $date)
     {
         return $query->where('due_at', '=', $date);

app/Models/Expense/Payment.php

@@ -64,6 +64,28 @@ class Payment extends Model
         return $this->hasMany('App\Models\Banking\Transfer');
     }
 
+    /**
+     * Convert amount to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setAmountAttribute($value)
+    {
+        $this->attributes['amount'] = (float) $value;
+    }
+
+    /**
+     * Convert currency rate to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setCurrencyRateAttribute($value)
+    {
+        $this->attributes['currency_rate'] = (float) $value;
+    }
+
     public static function scopeLatest($query)
     {
         return $query->orderBy('paid_at', 'desc');

app/Models/Income/Invoice.php

@@ -89,6 +89,28 @@ class Invoice extends Model
         return $this->hasMany('App\Models\Income\InvoiceHistory');
     }
 
+    /**
+     * Convert amount to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setAmountAttribute($value)
+    {
+        $this->attributes['amount'] = (float) $value;
+    }
+
+    /**
+     * Convert currency rate to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setCurrencyRateAttribute($value)
+    {
+        $this->attributes['currency_rate'] = (float) $value;
+    }
+
     public function scopeDue($query, $date)
     {
         return $query->where('due_at', '=', $date);

app/Models/Income/Revenue.php

@@ -70,6 +70,28 @@ class Revenue extends Model
         return $this->hasMany('App\Models\Banking\Transfer');
     }
 
+    /**
+     * Convert amount to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setAmountAttribute($value)
+    {
+        $this->attributes['amount'] = (float) $value;
+    }
+
+    /**
+     * Convert currency rate to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setCurrencyRateAttribute($value)
+    {
+        $this->attributes['currency_rate'] = (float) $value;
+    }
+
     public function scopeLatest($query)
     {
         return $query->orderBy('paid_at', 'desc');

app/Models/Item/Item.php

@@ -59,6 +59,28 @@ class Item extends Model
         return $this->hasMany('App\Models\Income\Invoice');
     }
 
+    /**
+     * Convert sale price to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setSalePriceAttribute($value)
+    {
+        $this->attributes['sale_price'] = (float) $value;
+    }
+
+    /**
+     * Convert purchase price to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setPurchasePriceAttribute($value)
+    {
+        $this->attributes['purchase_price'] = (float) $value;
+    }
+
     public function getConvertedAmount($format = false)
     {
         return $this->convert($this->amount, $this->currency_code, $this->currency_rate, $format);

app/Models/Setting/Currency.php

@@ -53,6 +53,17 @@ class Currency extends Model
         return $this->hasMany('App\Models\Expense\Payment', 'currency_code', 'code');
     }
 
+    /**
+     * Convert rate to float.
+     *
+     * @param  string  $value
+     * @return void
+     */
+    public function setRateAttribute($value)
+    {
+        $this->attributes['rate'] = (float) $value;
+    }
+
     public function canDisable()
     {
         $error = false;

database/migrations/2017_09_01_000000_create_accounts_table.php

@@ -18,7 +18,7 @@ class CreateAccountsTable extends Migration
             $table->string('name');
             $table->string('number');
             $table->string('currency_code');
-            $table->decimal('opening_balance')->default('0');
+            $table->float('opening_balance', 15, 4)->default('0.0000');
             $table->string('bank_name')->nullable();
             $table->string('bank_phone')->nullable();
             $table->text('bank_address')->nullable();