Reflection of HTML elements - django












0















I am trying to give an administrator of the webservice an ability to name buttons of the main menu using whathever text he or she wants. Moreover, I want to allow him to play with styles that particular button will be described with.



Each of written above action should be available from the administrator's menu ( in this case it is a default django admin framework ).



I've came up with an idea of using completely new model:



class MainSiteButton(models.Model):
button_title = models.CharField(
max_length=100,
null=True,
blank=False,
default="Click to edit",
verbose_name="Text of the button"
)

button_style = models.CharField(
max_length=10000,
null=True,
blank=False,
default="font-size: 10px; font-color: green;",
verbose_name="Style of the button"
)

button_default_name = models.CharField(
choices=button_default_name_choices,
max_length=500,
null=True,
blank=False,
default=next(iter(button_default_name_choices))[0],
verbose_name="Button back-end identifier"
)


Using given model, I am going to define each button, that is defined in the webpage's menu.



These will have such a form:



queried_home_button = MainSiteButton.objects.create(
button_title="Home",
button_default_name='home_button'
)
queried_logout_button = MainSiteButton.objects.create(
button_title="Logout",
button_default_name='logout_button'
)
queried_login_button = MainSiteButton.objects.create(
button_title="Login",
button_default_name='login_button'
)


Operation of defining new buttons will occur only once, at a start of the server



Another step is to define a lazy context processor:



@memoize
def texts_of_buttons(request):
context_data = dict()

try:

queried_home_button = MainSiteButton.objects.filter(
button_default_name='home_button'
)[0]
queried_logout_button = MainSiteButton.objects.filter(
button_default_name='logout_button'
)[0]
queried_login_button = MainSiteButton.objects.filter(
button_default_name='login_button'
)[0]

context_data['home_button'] = queried_home_button
context_data['logout_button'] = queried_logout_button
context_data['login_button'] = queried_login_button

except Exception as e:
logger.error(
'Problem: exception occured in MainSubPageController'
+ 'nError: ' + str(texts_of_buttons)
)

return context_data


To finally use it in the base template:



<a class="item {{ home_button.button_style|safe }}" href="{% url 'home' %}">{{ home_button.button_title }}</a>
<a class="item {{ queried_login_button.button_style|safe }}" href="{% url 'login' %}">{{ queried_login_button.button_title }}</a>
<a class="item {{ queried_logout_button.button_style|safe }}" href="{% url 'logout' %}">{{ queried_logout_button.button_title }}</a>


The question arises whether there exist better solution ( which means faster, that requires fewer memory resources










share|improve this question

























  • This is actually not lazy. Since if you "index" a queryset (like qs[1]) you perform evaluation.

    – Willem Van Onsem
    Dec 18 '18 at 19:19











  • that's correct, but I simply thought that using 'memoize' decorator along with function defined here: rock-it.pl/how-to-make-your-django-context-processors-lazy the result of this context processor is stored in the memory. Thanks for making it clear

    – D Komo
    Dec 18 '18 at 19:23
















0















I am trying to give an administrator of the webservice an ability to name buttons of the main menu using whathever text he or she wants. Moreover, I want to allow him to play with styles that particular button will be described with.



Each of written above action should be available from the administrator's menu ( in this case it is a default django admin framework ).



I've came up with an idea of using completely new model:



class MainSiteButton(models.Model):
button_title = models.CharField(
max_length=100,
null=True,
blank=False,
default="Click to edit",
verbose_name="Text of the button"
)

button_style = models.CharField(
max_length=10000,
null=True,
blank=False,
default="font-size: 10px; font-color: green;",
verbose_name="Style of the button"
)

button_default_name = models.CharField(
choices=button_default_name_choices,
max_length=500,
null=True,
blank=False,
default=next(iter(button_default_name_choices))[0],
verbose_name="Button back-end identifier"
)


Using given model, I am going to define each button, that is defined in the webpage's menu.



These will have such a form:



queried_home_button = MainSiteButton.objects.create(
button_title="Home",
button_default_name='home_button'
)
queried_logout_button = MainSiteButton.objects.create(
button_title="Logout",
button_default_name='logout_button'
)
queried_login_button = MainSiteButton.objects.create(
button_title="Login",
button_default_name='login_button'
)


Operation of defining new buttons will occur only once, at a start of the server



Another step is to define a lazy context processor:



@memoize
def texts_of_buttons(request):
context_data = dict()

try:

queried_home_button = MainSiteButton.objects.filter(
button_default_name='home_button'
)[0]
queried_logout_button = MainSiteButton.objects.filter(
button_default_name='logout_button'
)[0]
queried_login_button = MainSiteButton.objects.filter(
button_default_name='login_button'
)[0]

context_data['home_button'] = queried_home_button
context_data['logout_button'] = queried_logout_button
context_data['login_button'] = queried_login_button

except Exception as e:
logger.error(
'Problem: exception occured in MainSubPageController'
+ 'nError: ' + str(texts_of_buttons)
)

return context_data


To finally use it in the base template:



<a class="item {{ home_button.button_style|safe }}" href="{% url 'home' %}">{{ home_button.button_title }}</a>
<a class="item {{ queried_login_button.button_style|safe }}" href="{% url 'login' %}">{{ queried_login_button.button_title }}</a>
<a class="item {{ queried_logout_button.button_style|safe }}" href="{% url 'logout' %}">{{ queried_logout_button.button_title }}</a>


The question arises whether there exist better solution ( which means faster, that requires fewer memory resources










share|improve this question

























  • This is actually not lazy. Since if you "index" a queryset (like qs[1]) you perform evaluation.

    – Willem Van Onsem
    Dec 18 '18 at 19:19











  • that's correct, but I simply thought that using 'memoize' decorator along with function defined here: rock-it.pl/how-to-make-your-django-context-processors-lazy the result of this context processor is stored in the memory. Thanks for making it clear

    – D Komo
    Dec 18 '18 at 19:23














0












0








0








I am trying to give an administrator of the webservice an ability to name buttons of the main menu using whathever text he or she wants. Moreover, I want to allow him to play with styles that particular button will be described with.



Each of written above action should be available from the administrator's menu ( in this case it is a default django admin framework ).



I've came up with an idea of using completely new model:



class MainSiteButton(models.Model):
button_title = models.CharField(
max_length=100,
null=True,
blank=False,
default="Click to edit",
verbose_name="Text of the button"
)

button_style = models.CharField(
max_length=10000,
null=True,
blank=False,
default="font-size: 10px; font-color: green;",
verbose_name="Style of the button"
)

button_default_name = models.CharField(
choices=button_default_name_choices,
max_length=500,
null=True,
blank=False,
default=next(iter(button_default_name_choices))[0],
verbose_name="Button back-end identifier"
)


Using given model, I am going to define each button, that is defined in the webpage's menu.



These will have such a form:



queried_home_button = MainSiteButton.objects.create(
button_title="Home",
button_default_name='home_button'
)
queried_logout_button = MainSiteButton.objects.create(
button_title="Logout",
button_default_name='logout_button'
)
queried_login_button = MainSiteButton.objects.create(
button_title="Login",
button_default_name='login_button'
)


Operation of defining new buttons will occur only once, at a start of the server



Another step is to define a lazy context processor:



@memoize
def texts_of_buttons(request):
context_data = dict()

try:

queried_home_button = MainSiteButton.objects.filter(
button_default_name='home_button'
)[0]
queried_logout_button = MainSiteButton.objects.filter(
button_default_name='logout_button'
)[0]
queried_login_button = MainSiteButton.objects.filter(
button_default_name='login_button'
)[0]

context_data['home_button'] = queried_home_button
context_data['logout_button'] = queried_logout_button
context_data['login_button'] = queried_login_button

except Exception as e:
logger.error(
'Problem: exception occured in MainSubPageController'
+ 'nError: ' + str(texts_of_buttons)
)

return context_data


To finally use it in the base template:



<a class="item {{ home_button.button_style|safe }}" href="{% url 'home' %}">{{ home_button.button_title }}</a>
<a class="item {{ queried_login_button.button_style|safe }}" href="{% url 'login' %}">{{ queried_login_button.button_title }}</a>
<a class="item {{ queried_logout_button.button_style|safe }}" href="{% url 'logout' %}">{{ queried_logout_button.button_title }}</a>


The question arises whether there exist better solution ( which means faster, that requires fewer memory resources










share|improve this question
















I am trying to give an administrator of the webservice an ability to name buttons of the main menu using whathever text he or she wants. Moreover, I want to allow him to play with styles that particular button will be described with.



Each of written above action should be available from the administrator's menu ( in this case it is a default django admin framework ).



I've came up with an idea of using completely new model:



class MainSiteButton(models.Model):
button_title = models.CharField(
max_length=100,
null=True,
blank=False,
default="Click to edit",
verbose_name="Text of the button"
)

button_style = models.CharField(
max_length=10000,
null=True,
blank=False,
default="font-size: 10px; font-color: green;",
verbose_name="Style of the button"
)

button_default_name = models.CharField(
choices=button_default_name_choices,
max_length=500,
null=True,
blank=False,
default=next(iter(button_default_name_choices))[0],
verbose_name="Button back-end identifier"
)


Using given model, I am going to define each button, that is defined in the webpage's menu.



These will have such a form:



queried_home_button = MainSiteButton.objects.create(
button_title="Home",
button_default_name='home_button'
)
queried_logout_button = MainSiteButton.objects.create(
button_title="Logout",
button_default_name='logout_button'
)
queried_login_button = MainSiteButton.objects.create(
button_title="Login",
button_default_name='login_button'
)


Operation of defining new buttons will occur only once, at a start of the server



Another step is to define a lazy context processor:



@memoize
def texts_of_buttons(request):
context_data = dict()

try:

queried_home_button = MainSiteButton.objects.filter(
button_default_name='home_button'
)[0]
queried_logout_button = MainSiteButton.objects.filter(
button_default_name='logout_button'
)[0]
queried_login_button = MainSiteButton.objects.filter(
button_default_name='login_button'
)[0]

context_data['home_button'] = queried_home_button
context_data['logout_button'] = queried_logout_button
context_data['login_button'] = queried_login_button

except Exception as e:
logger.error(
'Problem: exception occured in MainSubPageController'
+ 'nError: ' + str(texts_of_buttons)
)

return context_data


To finally use it in the base template:



<a class="item {{ home_button.button_style|safe }}" href="{% url 'home' %}">{{ home_button.button_title }}</a>
<a class="item {{ queried_login_button.button_style|safe }}" href="{% url 'login' %}">{{ queried_login_button.button_title }}</a>
<a class="item {{ queried_logout_button.button_style|safe }}" href="{% url 'logout' %}">{{ queried_logout_button.button_title }}</a>


The question arises whether there exist better solution ( which means faster, that requires fewer memory resources







django django-templates lazy-loading






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Dec 31 '18 at 11:56









Bhargav Rao

30.3k2090111




30.3k2090111










asked Dec 18 '18 at 19:17









D KomoD Komo

467




467













  • This is actually not lazy. Since if you "index" a queryset (like qs[1]) you perform evaluation.

    – Willem Van Onsem
    Dec 18 '18 at 19:19











  • that's correct, but I simply thought that using 'memoize' decorator along with function defined here: rock-it.pl/how-to-make-your-django-context-processors-lazy the result of this context processor is stored in the memory. Thanks for making it clear

    – D Komo
    Dec 18 '18 at 19:23



















  • This is actually not lazy. Since if you "index" a queryset (like qs[1]) you perform evaluation.

    – Willem Van Onsem
    Dec 18 '18 at 19:19











  • that's correct, but I simply thought that using 'memoize' decorator along with function defined here: rock-it.pl/how-to-make-your-django-context-processors-lazy the result of this context processor is stored in the memory. Thanks for making it clear

    – D Komo
    Dec 18 '18 at 19:23

















This is actually not lazy. Since if you "index" a queryset (like qs[1]) you perform evaluation.

– Willem Van Onsem
Dec 18 '18 at 19:19





This is actually not lazy. Since if you "index" a queryset (like qs[1]) you perform evaluation.

– Willem Van Onsem
Dec 18 '18 at 19:19













that's correct, but I simply thought that using 'memoize' decorator along with function defined here: rock-it.pl/how-to-make-your-django-context-processors-lazy the result of this context processor is stored in the memory. Thanks for making it clear

– D Komo
Dec 18 '18 at 19:23





that's correct, but I simply thought that using 'memoize' decorator along with function defined here: rock-it.pl/how-to-make-your-django-context-processors-lazy the result of this context processor is stored in the memory. Thanks for making it clear

– D Komo
Dec 18 '18 at 19:23












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