Django工具栏：不显示筛选器大于的查询结果

我在Django中有一个简单的查询。我安装了Django工具栏来检查SQL查询和相应的数据

我的模型：

class RecipePosition(models.Model):
    name = models.CharField(max_length=200,blank=True,help_text="If left blank will be same as Ingredient name Eg: Tomato pulp")
    mass_quantity = models.DecimalField(max_digits=19, decimal_places=10,null=True,blank=True,default=0,validators=[MinValueValidator(0)])
    title = models.CharField(max_length=200,blank=True)
    updated = models.DateTimeField(auto_now=True, auto_now_add=False)
    timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)

我有下面带有过滤器的django查询

RecipePosition.objects.all().filter(mass_quantity__gt = 0)

Django获取质量_数量大于0的所有对象

但是当我在django工具栏中检查sql时。它表明：

SELECT "recipes_recipeposition"."id", 
       "recipes_recipeposition"."name",
       "recipes_recipeposition"."mass_quantity",
       "recipes_recipeposition"."title", 
       "recipes_recipeposition"."updated", 
       "recipes_recipeposition"."timestamp" 
FROM   "recipes_recipeposition" 
WHERE  "recipes_recipeposition"."mass_quantity" > 'Decimal(''0'')' 
ORDER  BY "recipes_recipeposition"."sequence_number" ASC 

我也在sqlite浏览器中尝试了这个命令，但没有显示任何结果

为什么django工具栏没有显示正确的SQL

根据我的说法，sql应该是：

SELECT "recipes_recipeposition"."id", 
       "recipes_recipeposition"."name", 
       "recipes_recipeposition"."mass_quantity",
       "recipes_recipeposition"."title", 
       "recipes_recipeposition"."updated", 
       "recipes_recipeposition"."timestamp" 
FROM   "recipes_recipeposition" 
WHERE  "recipes_recipeposition"."mass_quantity" > 0 
ORDER  BY "recipes_recipeposition"."sequence_number" ASC 

在sqlite浏览器中进行测试时会显示结果

同样，当我在shell_plus上用

--print sql--ipython

测试时

$ python manage.py shell_plus --print-sql --ipython
System check identified some issues:

# Shell Plus Model Imports
from recipes.models import Recipe, RecipePosition

Python 3.6.4 (default, Jan  5 2018, 02:35:40) 
Type 'copyright', 'credits' or 'license' for more information
IPython 6.5.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: RecipePosition.objects.all().filter(mass_quantity__gt=0)
Out[1]: SELECT "recipes_recipeposition"."id",
       "recipes_recipeposition"."name",
       "recipes_recipeposition"."mass_quantity",
       "recipes_recipeposition"."title",
       "recipes_recipeposition"."updated",
       "recipes_recipeposition"."timestamp"
  FROM "recipes_recipeposition"
 WHERE "recipes_recipeposition"."mass_quantity" > '0'
 ORDER BY "recipes_recipeposition"."sequence_number" ASC
 LIMIT 21

只有在django工具栏上，它才在django shell上显示Decimal（）东西，它显示的是

其中的“recipes\u recipeposition”。“mass\u quantity”>“0”

我还尝试了django工具栏文档中提到的方法。它显示的是

“配方”>“质量数量”>“0”

而不是

“配方”>“质量数量”>“十进制（'0'）”

我不知道django toobar为什么要用“配方”“配方”“质量”“数量”“十进制（'0'）”而不是“配方”“配方”“质量”“数量”“0”

---

我想依靠django工具栏，但现在我很担心

好消息，我认为你需要做出最细微的改变

而不是：

RecipePosition.objects.all().filter(mass_quantity__gt = 0)

您需要：

RecipePosition.objects.all().filter(mass_quantity__gt=0.0)

---

经过多次努力，终于通过了代码。我在源代码中做了以下更改，然后一切都按照我想要的方式工作

####################
http://127.0.0.1:8001/static/debug_toolbar/css/toolbar.css
# By doing this the sql will show in multiple lines with indent

#djDebug .djDebugSql {
    #word-break:break-word;
    z-index:100000002;
}

#####################

# replace \n with <br> and space with nbsp and dont use Boldkeyword
# By doing this the sql will show in multiple lines with indent

def reformat_sql(sql):
    stack = sqlparse.engine.FilterStack()
    options = formatter.validate_options({'reindent':True,'indent_width':True,})
    stack = formatter.build_filter_stack(stack, options)
    #stack.preprocess.append(BoldKeywordFilter())  # add our custom filter 
    stack.postprocess.append(sqlparse.filters.SerializerUnicode())  # tokens -> strings
    #return swap_fields(''.join(stack.run(sql)))
    return swap_fields(''.join(stack.run(sql)).replace("\n", "<br/>").replace(" ", "&nbsp;"))


#####################

in file  /lib/python3.6/site-packages/debug_toolbar/panels/sql/tracking.py
# because of this the greater than 0 is shown as deciman(0.0)   
# change for decimal wrap p in rev_typecast_decimal

def _record(self, method, sql, params):
    start_time = time()
    try:
        return method(sql, params)
    finally:
        stop_time = time()
        duration = (stop_time - start_time) * 1000
        if dt_settings.get_config()['ENABLE_STACKTRACES']:
            stacktrace = tidy_stacktrace(reversed(get_stack()))
        else:
            stacktrace = []
        _params = ''
        try:
            _params = json.dumps([self._decode(rev_typecast_decimal(p)) for p in params])
            #_params = json.dumps([self._decode(p) for p in params])  I  


###########################


            hare = []
            if params is not None:
                hare = [self._decode(rev_typecast_decimal(p)) for p in params]
                try:
                    _params = json.dumps([self._decode(rev_typecast_decimal(p)) for p in params])
                   # _params = json.dumps([self._decode(p) for p in params])
                except Exception:
                    pass  # object not JSON serializable

            template_info = get_template_info()

            alias = getattr(self.db, 'alias', 'default')
            conn = self.db.connection
            vendor = getattr(conn, 'vendor', 'unknown')

            params1 = {
                'vendor': vendor,
                'alias': alias,
                # 'sql': self.db.ops.last_executed_query(
                #     self.cursor, sql, self._quote_params(params)),
                'sql': self.db.ops.last_executed_query(
                     self.cursor, sql, hare),
                'duration': duration,
                'raw_sql': sql,
                'params': _params,
                'stacktrace': stacktrace,
                'start_time': start_time,
                'stop_time': stop_time,
                'is_slow': duration > dt_settings.get_config()['SQL_WARNING_THRESHOLD'],
                'is_select': sql.lower().strip().startswith('select'),
                'template_info': template_info,
            }




################################################

---

您用来构造质量的字段（

DecimalField

或

IntegerField

），请参见更新问题。它在shell_plus中显示得很好，正如我所期望的那样，只是在django工具栏中显示Decimal（）thing，它不会产生任何效果difference@SanthoshYedidi如果使用我修改过的示例会发生什么？现在的问题是语法，问题出在django-toolbar上。你能不能提供错误跟踪，这样我就可以帮你调试了。我刚刚发现它显示了一些错误的结果。

####################
http://127.0.0.1:8001/static/debug_toolbar/css/toolbar.css
# By doing this the sql will show in multiple lines with indent

#djDebug .djDebugSql {
    #word-break:break-word;
    z-index:100000002;
}

#####################

# replace \n with <br> and space with nbsp and dont use Boldkeyword
# By doing this the sql will show in multiple lines with indent

def reformat_sql(sql):
    stack = sqlparse.engine.FilterStack()
    options = formatter.validate_options({'reindent':True,'indent_width':True,})
    stack = formatter.build_filter_stack(stack, options)
    #stack.preprocess.append(BoldKeywordFilter())  # add our custom filter 
    stack.postprocess.append(sqlparse.filters.SerializerUnicode())  # tokens -> strings
    #return swap_fields(''.join(stack.run(sql)))
    return swap_fields(''.join(stack.run(sql)).replace("\n", "<br/>").replace(" ", "&nbsp;"))


#####################

in file  /lib/python3.6/site-packages/debug_toolbar/panels/sql/tracking.py
# because of this the greater than 0 is shown as deciman(0.0)   
# change for decimal wrap p in rev_typecast_decimal

def _record(self, method, sql, params):
    start_time = time()
    try:
        return method(sql, params)
    finally:
        stop_time = time()
        duration = (stop_time - start_time) * 1000
        if dt_settings.get_config()['ENABLE_STACKTRACES']:
            stacktrace = tidy_stacktrace(reversed(get_stack()))
        else:
            stacktrace = []
        _params = ''
        try:
            _params = json.dumps([self._decode(rev_typecast_decimal(p)) for p in params])
            #_params = json.dumps([self._decode(p) for p in params])  I  


###########################


            hare = []
            if params is not None:
                hare = [self._decode(rev_typecast_decimal(p)) for p in params]
                try:
                    _params = json.dumps([self._decode(rev_typecast_decimal(p)) for p in params])
                   # _params = json.dumps([self._decode(p) for p in params])
                except Exception:
                    pass  # object not JSON serializable

            template_info = get_template_info()

            alias = getattr(self.db, 'alias', 'default')
            conn = self.db.connection
            vendor = getattr(conn, 'vendor', 'unknown')

            params1 = {
                'vendor': vendor,
                'alias': alias,
                # 'sql': self.db.ops.last_executed_query(
                #     self.cursor, sql, self._quote_params(params)),
                'sql': self.db.ops.last_executed_query(
                     self.cursor, sql, hare),
                'duration': duration,
                'raw_sql': sql,
                'params': _params,
                'stacktrace': stacktrace,
                'start_time': start_time,
                'stop_time': stop_time,
                'is_slow': duration > dt_settings.get_config()['SQL_WARNING_THRESHOLD'],
                'is_select': sql.lower().strip().startswith('select'),
                'template_info': template_info,
            }




################################################

SELECT "recipes_recipeposition"."id",
       "recipes_recipeposition"."name",
       "recipes_recipeposition"."recipe_id",
       "recipes_recipeposition"."ingredient_id",
       "recipes_recipeposition"."recipeposition_slug",
       "recipes_recipeposition"."cooking_unit",
       "recipes_recipeposition"."mass_unit_id",
       "recipes_recipeposition"."mass_quantity",
       "recipes_recipeposition"."volume_unit_id",
       "recipes_recipeposition"."volume_quantity",
       "recipes_recipeposition"."pieces_unit_id",
       "recipes_recipeposition"."pieces_quantity",
       "recipes_recipeposition"."cooking_notes",
       "recipes_recipeposition"."sequence_number",
       "recipes_recipeposition"."title",
       "recipes_recipeposition"."updated",
       "recipes_recipeposition"."timestamp",
       "ingredients_ingredient"."rate" AS "ingredient__rate",
       CASE
           WHEN "ingredients_ingredient"."munit" = 'kg' THEN 'kg'
           WHEN "ingredients_ingredient"."munit" = 'ltr' THEN 'ltr'
           WHEN "ingredients_ingredient"."munit" = 'pcs' THEN 'pcs'
           ELSE 'False'
       END AS "ingredient__cost_unit",
       CASE
           WHEN "ingredients_ingredient"."munit" = 'kg' THEN CASE
                                                                 WHEN ("recipes_recipeposition"."mass_unit_id" IS NOT NULL
                                                                       AND "recipes_recipeposition"."mass_quantity" IS NOT NULL
                                                                       AND "recipes_recipeposition"."mass_quantity" > '0') THEN CAST(("recipes_recipeposition"."mass_quantity" * "single_measurements_singlemeasurements"."quantity") AS NUMERIC)
                                                                 ELSE 'False'
                                                             END
           WHEN "ingredients_ingredient"."munit" = 'ltr' THEN 'ltr'
           WHEN "ingredients_ingredient"."munit" = 'pcs' THEN 'pcs'
           ELSE 'False'
       END AS "reciposition_cost_quantity"
FROM "recipes_recipeposition"
LEFT OUTER JOIN "ingredients_ingredient" ON ("recipes_recipeposition"."ingredient_id" = "ingredients_ingredient"."id")
LEFT OUTER JOIN "single_measurements_singlemeasurements" ON ("recipes_recipeposition"."mass_unit_id" = "single_measurements_singlemeasurements"."id")
WHERE "recipes_recipeposition"."recipe_id" = '1'
ORDER BY "recipes_recipeposition"."sequence_number" ASC