How to refer to set objects in a django view from a template?

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I have data in a database in the form like this:

collection_name|manufacturer|product_type|description|image_url

----------------------------------------------------------------

Testing        |FakeCo      |Bed         |pretty nice|/img/1.jpg

Testing        |FakeCo      |Desk        |pretty bad |/img/2.jpg

Testing        |FakeCo      |Nightstand  |pretty ok  |/img/1.jpg

Testing        |FakeCo      |Draws       |pretty nice|/img/3.jpg

Initially, I was using a for loop to display fields from each result, which ends up with something like this: this: .

For the example data set above, what I am trying to do is display only the first result from certain fields, knowing they are identical for all rows returned, and then for remaining fields only display them when they are distinct.

I tried using sets in my django view, as another answer suggested this would eliminate duplicates and solve my issue.

My django view:

def collection_detail(request, name=None):

    template = loader.get_template('/webapps/my_webapp/furniture_site/main_page/templates/main_page/product-detail.html')

    products = product.objects.filter(collection_name=name)

    collection_name = 

    manufacturer = 

    description = 

    image_url = 

    for product in products:

        collection_name.append(product.collection_name)

        manufacturer.append(product.manufacturer)

        description.append(product.description)

        image_url.append(product.image_url)

    collection_name = set(collection_name)

    manufacturer = set(manufacturer)

    description = set(description)

    image_url = set(image_url)

    context={'products': products}

    return HttpResponse(template.render(context))

My issue is, that I am unable to refer to these set items in my template.

For example, in my template using:

                {% for instance in products %}

                {{ instance.collection_name }} Collection <br />

                {% endfor %}

returns nothing, as does

                {% for instance in products %}

                {{ collection_name }} Collection <br />

                {% endfor %}

What is the correct way to refer to items returned via the view in the template?

Ultimately, I am trying to get a result like the following (note descrption and collection name only used once, and duplicate image urls not returned).

enter image description here

asked Jan 3 at 5:51

Jake Rankin

18510

add a comment |

I have data in a database in the form like this:

collection_name|manufacturer|product_type|description|image_url

----------------------------------------------------------------

Testing        |FakeCo      |Bed         |pretty nice|/img/1.jpg

Testing        |FakeCo      |Desk        |pretty bad |/img/2.jpg

Testing        |FakeCo      |Nightstand  |pretty ok  |/img/1.jpg

Testing        |FakeCo      |Draws       |pretty nice|/img/3.jpg

Initially, I was using a for loop to display fields from each result, which ends up with something like this: this: .

I tried using sets in my django view, as another answer suggested this would eliminate duplicates and solve my issue.

My django view:

def collection_detail(request, name=None):

    template = loader.get_template('/webapps/my_webapp/furniture_site/main_page/templates/main_page/product-detail.html')

    products = product.objects.filter(collection_name=name)

    collection_name = 

    manufacturer = 

    description = 

    image_url = 

    for product in products:

        collection_name.append(product.collection_name)

        manufacturer.append(product.manufacturer)

        description.append(product.description)

        image_url.append(product.image_url)

    collection_name = set(collection_name)

    manufacturer = set(manufacturer)

    description = set(description)

    image_url = set(image_url)

    context={'products': products}

    return HttpResponse(template.render(context))

My issue is, that I am unable to refer to these set items in my template.

For example, in my template using:

                {% for instance in products %}

                {{ instance.collection_name }} Collection <br />

                {% endfor %}

returns nothing, as does

                {% for instance in products %}

                {{ collection_name }} Collection <br />

                {% endfor %}

What is the correct way to refer to items returned via the view in the template?

Ultimately, I am trying to get a result like the following (note descrption and collection name only used once, and duplicate image urls not returned).

enter image description here

asked Jan 3 at 5:51

Jake Rankin

18510

add a comment |

I have data in a database in the form like this:

collection_name|manufacturer|product_type|description|image_url

----------------------------------------------------------------

Testing        |FakeCo      |Bed         |pretty nice|/img/1.jpg

Testing        |FakeCo      |Desk        |pretty bad |/img/2.jpg

Testing        |FakeCo      |Nightstand  |pretty ok  |/img/1.jpg

Testing        |FakeCo      |Draws       |pretty nice|/img/3.jpg

Initially, I was using a for loop to display fields from each result, which ends up with something like this: this: .

I tried using sets in my django view, as another answer suggested this would eliminate duplicates and solve my issue.

My django view:

def collection_detail(request, name=None):

    template = loader.get_template('/webapps/my_webapp/furniture_site/main_page/templates/main_page/product-detail.html')

    products = product.objects.filter(collection_name=name)

    collection_name = 

    manufacturer = 

    description = 

    image_url = 

    for product in products:

        collection_name.append(product.collection_name)

        manufacturer.append(product.manufacturer)

        description.append(product.description)

        image_url.append(product.image_url)

    collection_name = set(collection_name)

    manufacturer = set(manufacturer)

    description = set(description)

    image_url = set(image_url)

    context={'products': products}

    return HttpResponse(template.render(context))

My issue is, that I am unable to refer to these set items in my template.

For example, in my template using:

                {% for instance in products %}

                {{ instance.collection_name }} Collection <br />

                {% endfor %}

returns nothing, as does

                {% for instance in products %}

                {{ collection_name }} Collection <br />

                {% endfor %}

What is the correct way to refer to items returned via the view in the template?

Ultimately, I am trying to get a result like the following (note descrption and collection name only used once, and duplicate image urls not returned).

enter image description here

asked Jan 3 at 5:51

Jake Rankin

18510

I have data in a database in the form like this:

collection_name|manufacturer|product_type|description|image_url

----------------------------------------------------------------

Testing        |FakeCo      |Bed         |pretty nice|/img/1.jpg

Testing        |FakeCo      |Desk        |pretty bad |/img/2.jpg

Testing        |FakeCo      |Nightstand  |pretty ok  |/img/1.jpg

Testing        |FakeCo      |Draws       |pretty nice|/img/3.jpg

Initially, I was using a for loop to display fields from each result, which ends up with something like this: this: .

I tried using sets in my django view, as another answer suggested this would eliminate duplicates and solve my issue.

My django view:

def collection_detail(request, name=None):

    template = loader.get_template('/webapps/my_webapp/furniture_site/main_page/templates/main_page/product-detail.html')

    products = product.objects.filter(collection_name=name)

    collection_name = 

    manufacturer = 

    description = 

    image_url = 

    for product in products:

        collection_name.append(product.collection_name)

        manufacturer.append(product.manufacturer)

        description.append(product.description)

        image_url.append(product.image_url)

    collection_name = set(collection_name)

    manufacturer = set(manufacturer)

    description = set(description)

    image_url = set(image_url)

    context={'products': products}

    return HttpResponse(template.render(context))

My issue is, that I am unable to refer to these set items in my template.

For example, in my template using:

                {% for instance in products %}

                {{ instance.collection_name }} Collection <br />

                {% endfor %}

returns nothing, as does

                {% for instance in products %}

                {{ collection_name }} Collection <br />

                {% endfor %}

What is the correct way to refer to items returned via the view in the template?

Ultimately, I am trying to get a result like the following (note descrption and collection name only used once, and duplicate image urls not returned).

enter image description here

django django-templates django-views

asked Jan 3 at 5:51

Jake Rankin

18510

asked Jan 3 at 5:51

Jake Rankin

18510

asked Jan 3 at 5:51

Jake Rankin

18510

asked Jan 3 at 5:51

Jake Rankin

18510

asked Jan 3 at 5:51

Jake Rankin

18510

add a comment |

2 Answers
2

active

oldest

votes

First of all, you're not passing the right data towards your template.

You need to pass on collection_name, manufacturer, description and image_url in your context.

context = {

    'products': products,

    'collection_name': collection_name,

    'manufacturer': manufacturer,

    'description': description,

    'image_url': image_url

}

Now you can access these in your template like:

{% for instance in collection_name %}

    {{ instance }} Collection <br />

{% endfor %}

Same for the others.

answered Jan 3 at 6:21

J. Ghyllebert

1,58412333

Ahhh, it seems so simple once someone explains it, but I would not have known h ow to figure this out for myself. Thank you! Testing now.

– Jake Rankin
Jan 3 at 6:24

add a comment |

It should render only one object in the loop. Still you can use first in your interpolation.

Like this:

{{ instance.collection_name|first }}

EDIT

You need to pass collection_name as you have initialised it as an empty list therefore it is a variable which you can use only when you pass it in context.

 context={'products': products, 'collection_name': collection_name}

edited Jan 3 at 6:26

answered Jan 3 at 6:05

ans2human

1,266616

When I tried that before using sets in my view, |first gave the first characters of each row+field, not the first result. Also, I need some fields to be multiple within the loop, such as image urls

– Jake Rankin
Jan 3 at 6:20

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

First of all, you're not passing the right data towards your template.

You need to pass on collection_name, manufacturer, description and image_url in your context.

context = {

    'products': products,

    'collection_name': collection_name,

    'manufacturer': manufacturer,

    'description': description,

    'image_url': image_url

}

Now you can access these in your template like:

{% for instance in collection_name %}

    {{ instance }} Collection <br />

{% endfor %}

Same for the others.

answered Jan 3 at 6:21

J. Ghyllebert

1,58412333

Ahhh, it seems so simple once someone explains it, but I would not have known h ow to figure this out for myself. Thank you! Testing now.

– Jake Rankin
Jan 3 at 6:24

add a comment |

First of all, you're not passing the right data towards your template.

You need to pass on collection_name, manufacturer, description and image_url in your context.

context = {

    'products': products,

    'collection_name': collection_name,

    'manufacturer': manufacturer,

    'description': description,

    'image_url': image_url

}

Now you can access these in your template like:

{% for instance in collection_name %}

    {{ instance }} Collection <br />

{% endfor %}

Same for the others.

answered Jan 3 at 6:21

J. Ghyllebert

1,58412333

Ahhh, it seems so simple once someone explains it, but I would not have known h ow to figure this out for myself. Thank you! Testing now.

– Jake Rankin
Jan 3 at 6:24

add a comment |

First of all, you're not passing the right data towards your template.

You need to pass on collection_name, manufacturer, description and image_url in your context.

context = {

    'products': products,

    'collection_name': collection_name,

    'manufacturer': manufacturer,

    'description': description,

    'image_url': image_url

}

Now you can access these in your template like:

{% for instance in collection_name %}

    {{ instance }} Collection <br />

{% endfor %}

Same for the others.

answered Jan 3 at 6:21

J. Ghyllebert

1,58412333

First of all, you're not passing the right data towards your template.

You need to pass on collection_name, manufacturer, description and image_url in your context.

context = {

    'products': products,

    'collection_name': collection_name,

    'manufacturer': manufacturer,

    'description': description,

    'image_url': image_url

}

Now you can access these in your template like:

{% for instance in collection_name %}

    {{ instance }} Collection <br />

{% endfor %}

Same for the others.

answered Jan 3 at 6:21

J. Ghyllebert

1,58412333

answered Jan 3 at 6:21

J. Ghyllebert

1,58412333

answered Jan 3 at 6:21

J. Ghyllebert

1,58412333

answered Jan 3 at 6:21

J. Ghyllebert

1,58412333

Ahhh, it seems so simple once someone explains it, but I would not have known h ow to figure this out for myself. Thank you! Testing now.

– Jake Rankin
Jan 3 at 6:24

add a comment |

Ahhh, it seems so simple once someone explains it, but I would not have known h ow to figure this out for myself. Thank you! Testing now.

– Jake Rankin
Jan 3 at 6:24

Ahhh, it seems so simple once someone explains it, but I would not have known h ow to figure this out for myself. Thank you! Testing now.

– Jake Rankin
Jan 3 at 6:24

add a comment |

It should render only one object in the loop. Still you can use first in your interpolation.

Like this:

{{ instance.collection_name|first }}

EDIT

You need to pass collection_name as you have initialised it as an empty list therefore it is a variable which you can use only when you pass it in context.

 context={'products': products, 'collection_name': collection_name}

edited Jan 3 at 6:26

answered Jan 3 at 6:05

ans2human

1,266616

When I tried that before using sets in my view, |first gave the first characters of each row+field, not the first result. Also, I need some fields to be multiple within the loop, such as image urls

– Jake Rankin
Jan 3 at 6:20

add a comment |

It should render only one object in the loop. Still you can use first in your interpolation.

Like this:

{{ instance.collection_name|first }}

EDIT

You need to pass collection_name as you have initialised it as an empty list therefore it is a variable which you can use only when you pass it in context.

 context={'products': products, 'collection_name': collection_name}

edited Jan 3 at 6:26

answered Jan 3 at 6:05

ans2human

1,266616

When I tried that before using sets in my view, |first gave the first characters of each row+field, not the first result. Also, I need some fields to be multiple within the loop, such as image urls

– Jake Rankin
Jan 3 at 6:20

add a comment |

It should render only one object in the loop. Still you can use first in your interpolation.

Like this:

{{ instance.collection_name|first }}

EDIT

You need to pass collection_name as you have initialised it as an empty list therefore it is a variable which you can use only when you pass it in context.

 context={'products': products, 'collection_name': collection_name}

edited Jan 3 at 6:26

answered Jan 3 at 6:05

ans2human

1,266616

It should render only one object in the loop. Still you can use first in your interpolation.

Like this:

{{ instance.collection_name|first }}

EDIT

You need to pass collection_name as you have initialised it as an empty list therefore it is a variable which you can use only when you pass it in context.

 context={'products': products, 'collection_name': collection_name}

edited Jan 3 at 6:26

answered Jan 3 at 6:05

ans2human

1,266616

edited Jan 3 at 6:26

answered Jan 3 at 6:05

ans2human

1,266616

answered Jan 3 at 6:05

ans2human

1,266616

answered Jan 3 at 6:05

ans2human

1,266616

When I tried that before using sets in my view, |first gave the first characters of each row+field, not the first result. Also, I need some fields to be multiple within the loop, such as image urls

– Jake Rankin
Jan 3 at 6:20

add a comment |

When I tried that before using sets in my view, |first gave the first characters of each row+field, not the first result. Also, I need some fields to be multiple within the loop, such as image urls

– Jake Rankin
Jan 3 at 6:20

When I tried that before using sets in my view, |first gave the first characters of each row+field, not the first result. Also, I need some fields to be multiple within the loop, such as image urls

– Jake Rankin
Jan 3 at 6:20

add a comment |

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